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Pediatric Radiotherapy: Background and Current Paradigms

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Textbook of Pediatric Neurosurgery

Abstract

Traditional photon-based radiation therapy (RT) is an integral component to the treatment of pediatric central nervous system tumors. In combination with advances in surgical management, chemotherapeutic regimens, and small molecule inhibitors, RT has helped improve survival and cure rates substantially. However, successful treatment and long-term survival have revealed many late-appearing adverse effects from irradiating normal tissue. With increased recognition of these sequelae, treatment approaches have become more sophisticated, integrating new technologies and strategies aimed at reducing dose to nontarget areas. The use of proton-based RT has been gaining traction recently as one such approach, along with image guidance radiation therapy (IGRT). In the era of personalized medicine, the molecular revolution in pediatric oncology has better stratified disease subgroups, allowing for appropriate radiotherapeutic escalation or de-escalation depending on biological insights, more accurate prognosis, and the success of other interventions. In this chapter, we review basic concepts in radiation oncology, recent advances in the field, and the current treatment paradigms for the most common pediatric CNS tumors. In particular, the authors discuss medulloblastoma, ependymoma, intracranial germ cell tumors, suptratentorial premative neuroectodermal tumors (sPNET), intradural spinal cord tumors, and low-grade gliomas.

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References

  • Abhiman S, Iyer LM, Aravind L (2008) BEN: a novel domain in chromatin factors and DNA viral proteins. Bioinforma 24:458–461

    CAS  Google Scholar 

  • Acharya S, DeWees T, Shinohara ET, Perkins SM (2015) Long-term outcomes and late effects for childhood and young adulthood intracranial germinomas. Neuro-Oncol 17:741–746

    PubMed  Google Scholar 

  • Agbahiwe HC, Wharam M, Batra S, Cohen K, Terezakis SA (2013) Management of pediatric myxopapillary ependymoma: the role of adjuvant radiation. Int J Radiat Oncol Biol Phys 85:421–427

    PubMed  Google Scholar 

  • Alcorn SR, Chen MJ, Claude L, Dieckmann K, Ermoian RP, Ford EC et al (2014) Practice patterns of photon and proton pediatric image guided radiation treatment: results from an international pediatric research consortium. Pract Radiat Oncol 4:336–341

    PubMed  Google Scholar 

  • Allen JC (2004) RT compared with chemotherapy and RT in treating patients with newly diagnosed primary Central Nervous System (CNS) germ cell tumor. ClinicalTrials.gov Identifier: NCT00085098. https://clinicaltrials.gov/ct2/show/NCT00085098?term=NCT00085098&rank=1

  • Alonso-Basanta M, Lustig RA, Kennedy DW (2011) Proton beam therapy in skull base pathology. Otolaryngol Clin N Am 44:1173–1183

    Google Scholar 

  • Antonuk LE, Yorkston J, Huang W, Sandler H, Siewerdsen JH, el-Mohri Y (1996) Megavoltage imaging with a large-area, flat-panel, amorphous silicon imager. Int J Radiat Oncol Biol Phys 36:661–672

    CAS  PubMed  Google Scholar 

  • Armstrong GT, Liu Q, Yasui Y, Huang S, Ness KK, Leisenring W et al (2009) Long-term outcomes among adult survivors of childhood central nervous system malignancies in the childhood cancer survivor study. J Natl Cancer Inst 101:946–958

    PubMed  PubMed Central  Google Scholar 

  • Armstrong GT, Conklin HM, Huang S, Srivastava D, Sanford R, Ellison DW et al (2011) Survival and long-term health and cognitive outcomes after low-grade glioma. Neuro-Oncol 13:223–234

    PubMed  Google Scholar 

  • Ater JL, Zhou T, Holmes E, Mazewski CM, Booth TN, Freyer DR et al (2012) Randomized study of two chemotherapy regimens for treatment of low-grade glioma in young children: a report from the Children’s Oncology Group. J Clin Oncol 30:2641–2647

    PubMed  PubMed Central  Google Scholar 

  • Ater JL, Xia C, Mazewski CM, Booth TN, Freyer DR, Packer RJ et al (2016) Nonrandomized comparison of neurofibromatosis type 1 and non-neurofibromatosis type 1 children who received carboplatin and vincristine for progressive low-grade glioma: a report from the Children’s Oncology Group. Cancer 122:1928–1936

    CAS  PubMed  PubMed Central  Google Scholar 

  • Athar BS, Bednarz B, Seco J, Hancox C, Paganetti H (2010) Comparison of out-of-field photon doses in 6 MV IMRT and neutron doses in proton therapy for adult and pediatric patients. Phys Med Biol 55:2879–2891

    PubMed  PubMed Central  Google Scholar 

  • Bailey CC, Gnekow A, Wellek S, Jones M, Round C, Brown J et al (1995) Prospective randomised trial of chemotherapy given before RT in childhood medulloblastoma. International Society of Paediatric Oncology (SIOP) and the (German) Society of Paediatric Oncology (GPO): SIOP II. Med Pediatr Oncol 25:166–178

    CAS  PubMed  Google Scholar 

  • Balmaceda C, Heller G, Rosenblum M, Diez B, Villablanca JG, Kellie S et al (1996) Chemotherapy without irradiation – a novel approach for newly diagnosed CNS germ cell tumors: results of an international cooperative trial. The first international central nervous system germ cell tumor study. J Clin Oncol 14:2908–2915

    CAS  PubMed  Google Scholar 

  • Bamberg M, Kortmann RD, Calaminus G, Becker G, Meisner C, Harms D et al (1999) RT for intracranial germinoma: results of the German cooperative prospective trials MAKEI 83/86/89. J Clin Oncol 17:2585–2592

    CAS  PubMed  Google Scholar 

  • Baranzelli MC, Patte C, Bouffet E, Portas M, Mechinaud-Lacroix F, Sariban E et al (1998) An attempt to treat pediatric intracranial alphaFP and betaHCG secreting germ cell tumors with chemotherapy alone. SFOP experience with 18 cases. Societe Francaise d’Oncologie Pediatrique. J Neuro-Oncol 37:229–239

    CAS  Google Scholar 

  • Bartels U (2012) Chemotherapy followed by RT in treating younger patients with newly diagnosed localized Central Nervous System Germ Cell Tumors. ClinicalTrials.gov Identifier: NCT01602666. https://clinicaltrials.gov/ct2/show/NCT01602666?term=NCT01602666&rank=1

  • Beltran C, Krasin MJ, Merchant TE (2011) Inter- and intrafractional positional uncertainties in pediatric RT patients with brain and head and neck tumors. Int J Radiat Oncol Biol Phys 79:1266–1274

    PubMed  Google Scholar 

  • Bentefour el H, Both S, Tang S, Lu HM (2015) Using CBCT for pretreatment range check in proton therapy: a phantom study for prostate treatment by anterior-posterior beam. J Appl Clin Med Phys 16:5212

    Google Scholar 

  • Bouffet E, Bernard JL, Frappaz D, Gentet JC, Roche H, Tron P et al (1992) M4 protocol for cerebellar medulloblastoma: supratentorial RT may not be avoided. Int J Radiat Oncol Biol Phys 24:79–85

    CAS  PubMed  Google Scholar 

  • Bouffet E, Allen JC, Boyett JM, Yates A, Gilles F, Burger PC et al (2016) The influence of central review on outcome in malignant gliomas of the spinal cord: the CCG-945 experience. J Neurosurg Pediatr 17:453–459

    PubMed  Google Scholar 

  • Calaminus G, Kortmann R, Worch J, Nicholson JC, Alapetite C, Garre ML et al (2013) SIOP CNS GCT 96: final report of outcome of a prospective, multinational nonrandomized trial for children and adults with intracranial germinoma, comparing craniospinal irradiation alone with chemotherapy followed by focal primary site irradiation for patients with localized disease. Neuro-Oncol 15:788–796

    CAS  PubMed  PubMed Central  Google Scholar 

  • Campbell JW, Pollack IF (1996) Cerebellar astrocytomas in children. J Neuro-Oncol 28:223–231

    CAS  Google Scholar 

  • Chang J, Yenice KM, Narayana A, Gutin PH (2007) Accuracy and feasibility of cone-beam computed tomography for stereotactic radiosurgery setup. Med Phys 34:2077–2084

    PubMed  Google Scholar 

  • Chin HW, Maruyama Y (1984) Age at treatment and long-term performance results in medulloblastoma. Cancer 53:1952–1958

    CAS  PubMed  Google Scholar 

  • Chintagumpala M, Hassall T, Palmer S, Ashley D, Wallace D, Kasow K et al (2009) A pilot study of risk-adapted RT and chemotherapy in patients with supratentorial PNET. Neuro-Oncol 11:33–40

    PubMed  PubMed Central  Google Scholar 

  • Chintagumpala M, Eckel SP, Krailo M, Morris M, Adesina A, Packer R et al (2015) A pilot study using carboplatin, vincristine, and temozolomide in children with progressive/symptomatic low-grade glioma: a Children’s Oncology Group studydagger. Neuro-Oncol 17:1132–1138

    CAS  PubMed  PubMed Central  Google Scholar 

  • Cohen AR, Wisoff JH, Allen JC, Epstein F (1989) Malignant astrocytomas of the spinal cord. J Neurosurg 70:50–54

    CAS  PubMed  Google Scholar 

  • Dai AI, Backstrom JW, Burger PC, Duffner PK (2003) Supratentorial primitive neuroectodermal tumors of infancy: clinical and radiologic findings. Pediatr Neurol 29:430–434

    PubMed  Google Scholar 

  • Daniele E, Coco MP (1995) The patient with internal pathology in dental practice: useful notes to avoid emergency situations. Minerva Stomatol 44:107–117

    CAS  PubMed  Google Scholar 

  • Deacon J, Peckham MJ, Steel GG (1984) The radioresponsiveness of human tumours and the initial slope of the cell survival curve. Radiother Oncol 2:317–323

    CAS  PubMed  Google Scholar 

  • DeSousa AL, Kalsbeck JE, Mealey J Jr, Campbell RL, Hockey A (1979) Intraspinal tumors in children. A review of 81 cases. J Neurosurg 51:437–445

    CAS  PubMed  Google Scholar 

  • Dhall G, Grodman H, Ji L, Sands S, Gardner S, Dunkel IJ et al (2008) Outcome of children less than three years old at diagnosis with non-metastatic medulloblastoma treated with chemotherapy on the “head start” I and II protocols. Pediatr Blood Cancer 50:1169–1175

    PubMed  Google Scholar 

  • Duffner PK, Horowitz ME, Krischer JP, Burger PC, Cohen ME, Sanford RA et al (1999) The treatment of malignant brain tumors in infants and very young children: an update of the Pediatric Oncology Group experience. Neuro-Oncol 1:152–161

    CAS  PubMed  PubMed Central  Google Scholar 

  • Evans AE, Jenkin RD, Sposto R, Ortega JA, Wilson CB, Wara W et al (1990) The treatment of medulloblastoma. Results of a prospective randomized trial of RT with and without CCNU, vincristine, and prednisone. J Neurosurg 72:572–582

    CAS  PubMed  Google Scholar 

  • Fangusaro J (2010) Selumetinib in treating young patients with recurrent or refractory low grade glioma. ClinicalTrials.gov Identifier: NCT01089101. https://clinicaltrials.gov/ct2/show/NCT01089101?term=NCT01089101&rank=1

  • Feldman WB, Clark AJ, Safaee M, Ames CP, Parsa AT (2013) Tumor control after surgery for spinal myxopapillary ependymomas: distinct outcomes in adults versus children: a systematic review. J Neurosurg Spine 19:471–476

    PubMed  Google Scholar 

  • Fertil B, Malaise EP (1985) Intrinsic radiosensitivity of human cell lines is correlated with radioresponsiveness of human tumors: analysis of 101 published survival curves. Int J Radiat Oncol Biol Phys 11:1699–1707

    CAS  PubMed  Google Scholar 

  • Forshew T, Tatevossian RG, Lawson AR, Ma J, Neale G, Ogunkolade BW et al (2009) Activation of the ERK/MAPK pathway: a signature genetic defect in posterior fossa pilocytic astrocytomas. J Pathol 218:172–181

    CAS  PubMed  Google Scholar 

  • Fouladi M, Gajjar A, Boyett JM, Walter AW, Thompson SJ, Merchant TE et al (1999) Comparison of CSF cytology and spinal magnetic resonance imaging in the detection of leptomeningeal disease in pediatric medulloblastoma or primitive neuroectodermal tumor. J Clin Oncol 17:3234–3237

    CAS  PubMed  Google Scholar 

  • Freeman CR, Farmer JP, Montes J (1998) Low-grade astrocytomas in children: evolving management strategies. Int J Radiat Oncol Biol Phys 41:979–987

    CAS  PubMed  Google Scholar 

  • French C (2014) NUT midline carcinoma. Nat Rev Cancer 14:149–150

    CAS  PubMed  Google Scholar 

  • Fukunaga-Johnson N, Lee JH, Sandler HM, Robertson P, McNeil E, Goldwein JW (1998) Patterns of failure following treatment for medulloblastoma: is it necessary to treat the entire posterior fossa? Int J Radiat Oncol Biol Phys 42:143–146

    CAS  PubMed  Google Scholar 

  • Gajjar A, Robinson GW (2013) A clinical and molecular risk-directed therapy for newly diagnosed medulloblastoma. ClinicalTrials.gov Identifier: NCT01878617. https://clinicaltrials.gov/ct2/show/NCT01878617?term=NCT01878617&rank=1

  • Gajjar A, Chintagumpala M, Ashley D, Kellie S, Kun LE, Merchant TE et al (2006) Risk-adapted craniospinal RT followed by high-dose chemotherapy and stem-cell rescue in children with newly diagnosed medulloblastoma (St Jude Medulloblastoma-96): long-term results from a prospective, multicentre trial. Lancet Oncol 7:813–820

    PubMed  Google Scholar 

  • Glenn OA, Barkovich AJ (1996) Intracranial germ cell tumors: a comprehensive review of proposed embryologic derivation. Pediatr Neurosurg 24:242–251

    CAS  PubMed  Google Scholar 

  • Godfraind C, Kaczmarska JM, Kocak M, Dalton J, Wright KD, Sanford RA et al (2012) Distinct disease-risk groups in pediatric supratentorial and posterior fossa ependymomas. Acta Neuropathol 124:247–257

    PubMed  PubMed Central  Google Scholar 

  • Grill J, Sainte-Rose C, Jouvet A, Gentet JC, Lejars O, Frappaz D et al (2005) Treatment of medulloblastoma with postoperative chemotherapy alone: an SFOP prospective trial in young children. Lancet Oncol 6:573–580

    CAS  PubMed  Google Scholar 

  • Gullotta F, Schindler F, Schmutzler R, Weeks-Seifert A (1985) GFAP in brain tumor diagnosis: possibilities and limitations. Pathol Res Pract 180:54–60

    CAS  PubMed  Google Scholar 

  • Gunther JR, Sato M, Chintagumpala M, Ketonen L, Jones JY, Allen PK et al (2015) Imaging changes in pediatric intracranial ependymoma patients treated with proton beam RT compared to intensity modulated RT. Int J Radiat Oncol Biol Phys 93:54–63

    PubMed  Google Scholar 

  • Haas-Kogan DA, Missett BT, Wara WM, Donaldson SS, Lamborn KR, Prados MD et al (2003) RT for intracranial germ cell tumors. Int J Radiat Oncol Biol Phys 56:511–518

    PubMed  Google Scholar 

  • Hall EJ (2009) Radiation biology for pediatric radiologists. Pediatr Radiol 39(Suppl 1):S57–S64

    PubMed  Google Scholar 

  • Hardenbergh PH, Golden J, Billet A, Scott RM, Shrieve DC, Silver B et al (1997) Intracranial germinoma: the case for lower dose RT. Int J Radiat Oncol Biol Phys 39:419–426

    CAS  PubMed  Google Scholar 

  • Hess CB, Thompson HM, Benedict SH, Seibert JA, Wong K, Vaughan AT et al (2016) Exposure risks among children undergoing RT: considerations in the era of image guided RT. Int J Radiat Oncol Biol Phys 94:978–992

    PubMed  Google Scholar 

  • Ho DM, Liu HC (1992) Primary intracranial germ cell tumor. Pathologic study of 51 patients. Cancer 70:1577–1584

    CAS  PubMed  Google Scholar 

  • Hoffman HJ, Otsubo H, Hendrick EB, Humphreys RP, Drake JM, Becker LE et al (1991) Intracranial germ-cell tumors in children. J Neurosurg 74:545–551

    CAS  PubMed  Google Scholar 

  • Howell RM, Giebeler A, Koontz-Raisig W, Mahajan A, Etzel CJ, D’Amelio AM Jr et al (2012) Comparison of therapeutic dosimetric data from passively scattered proton and photon craniospinal irradiations for medulloblastoma. Radiat Oncol 7:116

    PubMed  PubMed Central  Google Scholar 

  • Indelicato DJ, Flampouri S, Rotondo RL, Bradley JA, Morris CG, Aldana PR et al (2014) Incidence and dosimetric parameters of pediatric brainstem toxicity following proton therapy. Acta Oncol 53:1298–1304

    CAS  PubMed  Google Scholar 

  • Jaffray DA, Siewerdsen JH, Wong JW, Martinez AA (2002) Flat-panel cone-beam computed tomography for image-guided RT. Int J Radiat Oncol Biol Phys 53:1337–1349

    PubMed  Google Scholar 

  • Jakacki RI, Bouffet E, Adamson PC, Pollack IF, Ingle AM, Voss SD et al (2011) A phase 1 study of vinblastine in combination with carboplatin for children with low-grade gliomas: a Children’s Oncology Group phase 1 consortium study. Neuro-Oncol 13:910–915

    CAS  PubMed  PubMed Central  Google Scholar 

  • Jennings MT, Gelman R, Hochberg F (1985) Intracranial germ-cell tumors: natural history and pathogenesis. J Neurosurg 63:155–167

    CAS  PubMed  Google Scholar 

  • Johnston DL, Keene DL, Lafay-Cousin L, Steinbok P, Sung L, Carret AS et al (2008) Supratentorial primitive neuroectodermal tumors: a Canadian pediatric brain tumor consortium report. J Neuro-Oncol 86:101–108

    Google Scholar 

  • Joseph EW, Pratilas CA, Poulikakos PI, Tadi M, Wang W, Taylor BS et al (2010) The RAF inhibitor PLX4032 inhibits ERK signaling and tumor cell proliferation in a V600E BRAF-selective manner. Proc Natl Acad Sci U S A 107:14903–14908

    CAS  PubMed  PubMed Central  Google Scholar 

  • Kahalley LS, Ris MD, Grosshans DR, Okcu MF, Paulino AC, Chintagumpala M et al (2016) Comparing intelligence quotient change after treatment with proton versus photon RT for pediatric brain tumors. J Clin Oncol 34:1043–1049

    CAS  PubMed  PubMed Central  Google Scholar 

  • Kortmann RD, Kuhl J, Timmermann B, Mittler U, Urban C, Budach V et al (2000) Postoperative neoadjuvant chemotherapy before RT as compared to immediate RT followed by maintenance chemotherapy in the treatment of medulloblastoma in childhood: results of the German prospective randomized trial HIT ‘91. Int J Radiat Oncol Biol Phys 46:269–279

    CAS  PubMed  Google Scholar 

  • Kralik SF, Ho CY, Finke W, Buchsbaum JC, Haskins CP, Shih CS (2015) Radiation necrosis in pediatric patients with brain tumors treated with proton RT. AJNR Am J Neuroradiol 36:1572–1578

    CAS  PubMed  Google Scholar 

  • Ladra MM, Edgington SK, Mahajan A, Grosshans D, Szymonifka J, Khan F et al (2014) A dosimetric comparison of proton and intensity modulated RT in pediatric rhabdomyosarcoma patients enrolled on a prospective phase II proton study. Radiother Oncol 113:77–83

    PubMed  PubMed Central  Google Scholar 

  • Lafay-Cousin L, Millar BA, Mabbott D, Spiegler B, Drake J, Bartels U et al (2006) Limited-field radiation for bifocal germinoma. Int J Radiat Oncol Biol Phys 65:486–492

    PubMed  Google Scholar 

  • Lassen-Ramshad Y, Petersen JB, Tietze A, Borghammer P, Mahajan A, McGovern SL (2015) Pseudoprogression after proton RT for pediatric low grade glioma. Acta Oncol 54:1701–1702

    PubMed  Google Scholar 

  • Leroy R, Benahmed N, Hulstaert F, Van Damme N, De Ruysscher D (2016) Proton therapy in children: a systematic review of clinical effectiveness in 15 pediatric cancers. Int J Radiat Oncol Biol Phys 95:267–278

    PubMed  Google Scholar 

  • Lin A, Rodriguez FJ, Karajannis MA, Williams SC, Legault G, Zagzag D et al (2012) BRAF alterations in primary glial and glioneuronal neoplasms of the central nervous system with identification of 2 novel KIAA1549:BRAF fusion variants. J Neuropathol Exp Neurol 71:66–72

    CAS  PubMed  PubMed Central  Google Scholar 

  • Liu W, Mohan R, Park P, Liu Z, Li H, Li X et al (2014) Dosimetric benefits of robust treatment planning for intensity modulated proton therapy for base-of-skull cancers. Pract Radiat Oncol 4:384–391

    PubMed  PubMed Central  Google Scholar 

  • Lomax AJ, Boehringer T, Coray A, Egger E, Goitein G, Grossmann M et al (2001) Intensity modulated proton therapy: a clinical example. Med Phys 28:317–324

    CAS  PubMed  Google Scholar 

  • Lomax AJ, Bohringer T, Bolsi A, Coray D, Emert F, Goitein G et al (2004) Treatment planning and verification of proton therapy using spot scanning: initial experiences. Med Phys 31:3150–3157

    PubMed  Google Scholar 

  • Lomax ME, Folkes LK, O’Neill P (2013) Biological consequences of radiation-induced DNA damage: relevance to RT. Clin Oncol (R Coll Radiol) 25:578–585

    CAS  Google Scholar 

  • Louis DN, Ohgaki H, Wiestler OD, Cavenee WK, Burger PC, Jouvet A et al (2007) The 2007 WHO classification of tumours of the central nervous system. Acta Neuropathol 114:97–109

    PubMed  PubMed Central  Google Scholar 

  • Maity A, Shu HK, Janss A, Belasco JB, Rorke L, Phillips PC et al (2004) Craniospinal radiation in the treatment of biopsy-proven intracranial germinomas: twenty-five years’ experience in a single center. Int J Radiat Oncol Biol Phys 58:1165–1170

    PubMed  Google Scholar 

  • Matsutani M (2008) Treatment of intracranial germ cell tumors: the second phase II study of Japanese GCT Study Group. (Abstract GCT 13 – 13th international symposium on pediatric neuro-oncology), Chicago, IL. J Neuro-Oncol 10:240

    Google Scholar 

  • Matsuura T, Fujii Y, Takao S, Yamada T, Matsuzaki Y, Miyamoto N et al (2016) Development and evaluation of a short-range applicator for treating superficial moving tumors with respiratory-gated spot-scanning proton therapy using real-time image guidance. Phys Med Biol 61:1515–1531

    CAS  PubMed  Google Scholar 

  • McBride SM, Daganzo SM, Banerjee A, Gupta N, Lamborn KR, Prados MD et al (2008) Radiation is an important component of multimodality therapy for pediatric non-pineal supratentorial primitive neuroectodermal tumors. Int J Radiat Oncol Biol Phys 72:1319–1323

    PubMed  Google Scholar 

  • McNeill KA (2016) Epidemiology of brain tumors. Neurol Clin 34:981–998

    PubMed  Google Scholar 

  • Merchant TE (2013) Clinical controversies: proton therapy for pediatric tumors. Semin Radiat Oncol 23:97–108

    PubMed  PubMed Central  Google Scholar 

  • Merchant TE, Farr JB (2014) Proton beam therapy: a fad or a new standard of care. Curr Opin Pediatr 26:3–8

    CAS  PubMed  Google Scholar 

  • Merchant TE, Happersett L, Finlay JL, Leibel SA (1999) Preliminary results of conformal RT for medulloblastoma. Neuro-Oncology 1:177–187

    CAS  PubMed  PubMed Central  Google Scholar 

  • Merchant TE, Kiehna EN, Thompson SJ, Heideman R, Sanford RA, Kun LE (2000) Pediatric low-grade and ependymal spinal cord tumors. Pediatr Neurosurg 32:30–36

    CAS  PubMed  Google Scholar 

  • Merchant TE, Boop FA, Kun LE, Sanford RA (2008a) A retrospective study of surgery and reirradiation for recurrent ependymoma. Int J Radiat Oncol Biol Phys 71:87–97

    PubMed  Google Scholar 

  • Merchant TE, Kun LE, Krasin MJ, Wallace D, Chintagumpala MM, Woo SY et al (2008b) Multi-institution prospective trial of reduced-dose craniospinal irradiation (23.4 Gy) followed by conformal posterior fossa (36 Gy) and primary site irradiation (55.8 Gy) and dose-intensive chemotherapy for average-risk medulloblastoma. Int J Radiat Oncol Biol Phys 70:782–787

    PubMed  Google Scholar 

  • Merchant TE, Kun LE, Wu S, Xiong X, Sanford RA, Boop FA (2009a) Phase II trial of conformal RT for pediatric low-grade glioma. J Clin Oncol 27:3598–3604

    PubMed  PubMed Central  Google Scholar 

  • Merchant TE, Li C, Xiong X, Kun LE, Boop FA, Sanford RA (2009b) Conformal RT after surgery for paediatric ependymoma: a prospective study. Lancet Oncol 10:258–266

    PubMed  PubMed Central  Google Scholar 

  • Michalski JM, Janss A, Vezina G, Gajjar A, Pollack I, Merchant TE et al (2016) Results of COG ACNS0331: a phase III trial of Involved-Field RT (IFRT) and Low Dose Craniospinal Irradiation (LD-CSI) with chemotherapy in average-risk medulloblastoma: a report from the Children’s Oncology Group (LAB-2 abstract), ASTRO, 2016. https://www.astro.org/uploadedFiles/_MAIN_SITE/Meetings_and_Education/ASTRO_Meetings/2016/Annual_Meeting/Content_Pieces/LBAAbstracts.pdf

  • Michiels EM, Schouten-Van Meeteren AY, Doz F, Janssens GO, van Dalen EC (2015) Chemotherapy for children with medulloblastoma. Cochrane Database Syst Rev 1:CD006678

    PubMed  Google Scholar 

  • Morfouace M, Shelat A, Jacus M, Freeman BB 3rd, Turner D, Robinson S et al (2014) Pemetrexed and gemcitabine as combination therapy for the treatment of Group3 medulloblastoma. Cancer Cell 25:516–529

    CAS  PubMed  PubMed Central  Google Scholar 

  • Moxon-Emre I, Taylor MD, Bouffet E, Hardy K, Campen CJ, Malkin D et al (2016) Intellectual outcome in molecular subgroups of medulloblastoma. J Clin Oncol 34(34):4161–4170

    PubMed  Google Scholar 

  • Murray MJ, Horan G, Lowis S, Nicholson JC (2013) Highlights from the third international central nervous system germ cell tumour symposium: laying the foundations for future consensus. Ecancermedicalscience 7:333

    PubMed  PubMed Central  Google Scholar 

  • Murray MJ, Bartels U, Nishikawa R, Fangusaro J, Matsutani M, Nicholson JC (2015) Consensus on the management of intracranial germ-cell tumours. Lancet Oncol 16:e470–e477

    PubMed  Google Scholar 

  • Nageswara Rao AA, Wallace DJ, Billups C, Boyett JM, Gajjar A, Packer RJ (2014) Cumulative cisplatin dose is not associated with event-free or overall survival in children with newly diagnosed average-risk medulloblastoma treated with cisplatin based adjuvant chemotherapy: report from the Children’s oncology group. Pediatr Blood Cancer 61:102–106

    PubMed  Google Scholar 

  • Northcott PA, Pfister SM, Jones DT (2015) Next-generation (epi)genetic drivers of childhood brain tumours and the outlook for targeted therapies. Lancet Oncol 16:e293–e302

    PubMed  Google Scholar 

  • Ogawa K, Toita T, Nakamura K, Uno T, Onishi H, Itami J et al (2003) Treatment and prognosis of patients with intracranial nongerminomatous malignant germ cell tumors: a multiinstitutional retrospective analysis of 41 patients. Cancer 98:369–376

    PubMed  Google Scholar 

  • Ogawa K, Shikama N, Toita T, Nakamura K, Uno T, Onishi H et al (2004) Long-term results of RT for intracranial germinoma: a multi-institutional retrospective review of 126 patients. Int J Radiat Oncol Biol Phys 58:705–713

    PubMed  Google Scholar 

  • Olson J (2006) Chemotherapy and RT in treating young patients with newly diagnosed, previously untreated, high-risk medulloblastoma. ClinicalTrials.gov Identifier: NCT00392327. https://clinicaltrials.gov/ct2/show/NCT00392327?term=NCT00392327&rank=1

  • Otero JJ, Rowitch D, Vandenberg S (2011) OLIG2 is differentially expressed in pediatric astrocytic and in ependymal neoplasms. J Neuro-Oncol 104:423–438

    Google Scholar 

  • Packer RJ, Sposto R, Atkins TE, Sutton LN, Bruce DA, Siegel KR et al (1987) Quality of life in children with primitive neuroectodermal tumors (medulloblastoma) of the posterior fossa. Pediatr Neurosci 13:169–175

    CAS  PubMed  Google Scholar 

  • Packer RJ, Lange B, Ater J, Nicholson HS, Allen J, Walker R et al (1993) Carboplatin and vincristine for recurrent and newly diagnosed low-grade gliomas of childhood. J Clin Oncol 11:850–856

    CAS  PubMed  Google Scholar 

  • Packer RJ, Goldwein J, Nicholson HS, Vezina LG, Allen JC, Ris MD et al (1999) Treatment of children with medulloblastomas with reduced-dose craniospinal RT and adjuvant chemotherapy: a Children’s Cancer Group Study. J Clin Oncol 17:2127–2136

    CAS  PubMed  Google Scholar 

  • Packer RJ, Gajjar A, Vezina G, Rorke-Adams L, Burger PC, Robertson PL et al (2006) Phase III study of craniospinal RT followed by adjuvant chemotherapy for newly diagnosed average-risk medulloblastoma. J Clin Oncol 24:4202–4208

    CAS  PubMed  Google Scholar 

  • Paganetti H (2014) Relative biological effectiveness (RBE) values for proton beam therapy. Variations as a function of biological endpoint, dose, and linear energy transfer. Phys Med Biol 59:R419–R472

    PubMed  Google Scholar 

  • Paganetti H, van Luijk P (2013) Biological considerations when comparing proton therapy with photon therapy. Semin Radiat Oncol 23:77–87

    PubMed  Google Scholar 

  • Pai Panandiker AS, Sharma S, Naik MH, Wu S, Hua C, Beltran C et al (2012) Novel assessment of renal motion in children as measured via four-dimensional computed tomography. Int J Radiat Oncol Biol Phys 82:1771–1776

    PubMed  Google Scholar 

  • Pajtler KW, Mack SC, Ramaswamy V, Smith CA, Witt H, Smith A et al (2017) The current consensus on the clinical management of intracranial ependymoma and its distinct molecular variants. Acta Neuropathol. 133(1):5–12. doi: 10.1007/s00401-016-1643-0. Epub 2016 Nov 17.

    Google Scholar 

  • Park YK, Sharp GC, Phillips J, Winey BA (2015) Proton dose calculation on scatter-corrected CBCT image: feasibility study for adaptive proton therapy. Med Phys 42:4449–4459

    CAS  PubMed  PubMed Central  Google Scholar 

  • Parker M, Mohankumar KM, Punchihewa C, Weinlich R, Dalton JD, Li Y et al (2014) C11orf95-RELA fusions drive oncogenic NF-kappaB signalling in ependymoma. Nature 506:451–455

    CAS  PubMed  PubMed Central  Google Scholar 

  • Pizer BL, Weston CL, Robinson KJ, Ellison DW, Ironside J, Saran F et al (2006) Analysis of patients with supratentorial primitive neuro-ectodermal tumours entered into the SIOP/UKCCSG PNET 3 study. Eur J Cancer 42:1120–1128

    PubMed  Google Scholar 

  • Prescribing, Recording, and Reporting Proton Beam Therapy (2007) ICRU Report 78. In: International commission on radiation units and measurements, vol 78. Washington, DC

    Google Scholar 

  • Ramaswamy V, Hielscher T, Mack SC, Lassaletta A, Lin T, Pajtler KW et al (2016a) Therapeutic impact of cytoreductive surgery and irradiation of posterior fossa ependymoma in the molecular era: a retrospective multicohort analysis. J Clin Oncol 34:2468–2477

    CAS  PubMed  PubMed Central  Google Scholar 

  • Ramaswamy V, Remke M, Bouffet E, Bailey S, Clifford SC, Doz F et al (2016b) Risk stratification of childhood medulloblastoma in the molecular era: the current consensus. Acta Neuropathol 131:821–831

    CAS  PubMed  PubMed Central  Google Scholar 

  • Ris MD, Packer R, Goldwein J, Jones-Wallace D, Boyett JM (2001) Intellectual outcome after reduced-dose RT plus adjuvant chemotherapy for medulloblastoma: a Children’s Cancer Group study. J Clin Oncol 19:3470–3476

    CAS  PubMed  Google Scholar 

  • Rogers L, Pueschel J, Spetzler R, Shapiro W, Coons S, Thomas T et al (2005) Is gross-total resection sufficient treatment for posterior fossa ependymomas? J Neurosurg 102:629–636

    PubMed  Google Scholar 

  • Rutkowski S, Bode U, Deinlein F, Ottensmeier H, Warmuth-Metz M, Soerensen N et al (2005) Treatment of early childhood medulloblastoma by postoperative chemotherapy alone. N Engl J Med 352:978–986

    CAS  PubMed  Google Scholar 

  • Sawant A, Venkat R, Srivastava V, Carlson D, Povzner S, Cattell H et al (2008) Management of three-dimensional intrafraction motion through real-time DMLC tracking. Med Phys 35:2050–2061

    PubMed  PubMed Central  Google Scholar 

  • Schild SE, Nisi K, Scheithauer BW, Wong WW, Lyons MK, Schomberg PJ et al (1998) The results of RT for ependymomas: the Mayo Clinic experience. Int J Radiat Oncol Biol Phys 42:953–958

    CAS  PubMed  Google Scholar 

  • Schindler G, Capper D, Meyer J, Janzarik W, Omran H, Herold-Mende C et al (2011) Analysis of BRAF V600E mutation in 1,320 nervous system tumors reveals high mutation frequencies in pleomorphic xanthoastrocytoma, ganglioglioma and extra-cerebellar pilocytic astrocytoma. Acta Neuropathol 121:397–405

    CAS  PubMed  Google Scholar 

  • Shikama N, Ogawa K, Tanaka S, Toita T, Nakamura K, Uno T et al (2005) Lack of benefit of spinal irradiation in the primary treatment of intracranial germinoma: a multiinstitutional, retrospective review of 180 patients. Cancer 104:126–134

    PubMed  Google Scholar 

  • Silverman CL, Palkes H, Talent B, Kovnar E, Clouse JW, Thomas PR (1984) Late effects of RT on patients with cerebellar medulloblastoma. Cancer 54:825–829

    CAS  PubMed  Google Scholar 

  • Sturm D, Orr BA, Toprak UH, Hovestadt V, Jones DT, Capper D et al (2016) New brain tumor entities emerge from molecular classification of CNS-PNETs. Cell 164:1060–1072

    CAS  PubMed  PubMed Central  Google Scholar 

  • Tait DM, Thornton-Jones H, Bloom HJ, Lemerle J, Morris-Jones P (1990) Adjuvant chemotherapy for medulloblastoma: the first multi-centre control trial of the International Society of Paediatric Oncology (SIOP I). Eur J Cancer 26:464–469

    CAS  PubMed  Google Scholar 

  • Takei H, Yogeswaren ST, Wong KK, Mehta V, Chintagumpala M, Dauser RC et al (2008) Expression of oligodendroglial differentiation markers in pilocytic astrocytomas identifies two clinical subsets and shows a significant correlation with proliferation index and progression free survival. J Neuro-Oncol 86:183–190

    Google Scholar 

  • Taylor MD, Poppleton H, Fuller C, Su X, Liu Y, Jensen P et al (2005) Radial glia cells are candidate stem cells of ependymoma. Cancer Cell 8:323–335

    CAS  PubMed  Google Scholar 

  • Taylor RE, Donachie PH, Weston CL, Robinson KJ, Lucraft H, Saran F et al (2009) Impact of RT parameters on outcome for patients with supratentorial primitive neuro-ectodermal tumours entered into the SIOP/UKCCSG PNET 3 study. Radiother Oncol 92:83–88

    PubMed  Google Scholar 

  • Taylor MD, Northcott PA, Korshunov A, Remke M, Cho YJ, Clifford SC et al (2012) Molecular subgroups of medulloblastoma: the current consensus. Acta Neuropathol 123:465–472

    CAS  PubMed  Google Scholar 

  • Thomas PR, Deutsch M, Kepner JL, Boyett JM, Krischer J, Aronin P et al (2000) Low-stage medulloblastoma: final analysis of trial comparing standard-dose with reduced-dose neuraxis irradiation. J Clin Oncol 18:3004–3011

    CAS  PubMed  Google Scholar 

  • Thompson EM, Hielscher T, Bouffet E, Remke M, Luu B, Gururangan S et al (2016) Prognostic value of medulloblastoma extent of resection after accounting for molecular subgroup: a retrospective integrated clinical and molecular analysis. Lancet Oncol 17:484–495

    CAS  PubMed  PubMed Central  Google Scholar 

  • Van Poppel M, Klimo P Jr, Dewire M, Sanford RA, Boop F, Broniscer A et al (2011) Resection of infantile brain tumors after neoadjuvant chemotherapy: the St. Jude experience. J Neurosurg Pediatr 8:251–256

    PubMed  Google Scholar 

  • Williams VC, Lucas J, Babcock MA, Gutmann DH, Korf B, Maria BL (2009) Neurofibromatosis type 1 revisited. Pediatrics 123:124–133

    PubMed  Google Scholar 

  • Witt H, Mack SC, Ryzhova M, Bender S, Sill M, Isserlin R et al (2011) Delineation of two clinically and molecularly distinct subgroups of posterior fossa ependymoma. Cancer Cell 20:143–157

    CAS  PubMed  PubMed Central  Google Scholar 

  • Wolden SL, Dunkel IJ, Souweidane MM, Happersett L, Khakoo Y, Schupak K et al (2003) Patterns of failure using a conformal RT tumor bed boost for medulloblastoma. J Clin Oncol 21:3079–3083

    PubMed  Google Scholar 

  • Yan H, Parsons DW, Jin G, McLendon R, Rasheed BA, Yuan W et al (2009) IDH1 and IDH2 mutations in gliomas. N Engl J Med 360:765–773

    CAS  PubMed  PubMed Central  Google Scholar 

  • Yang HJ, Nam DH, Wang KC, Kim YM, Chi JG, Cho BK (1999) Supratentorial primitive neuroectodermal tumor in children: clinical features, treatment outcome and prognostic factors. Childs Nerv Syst 15:377–383

    CAS  PubMed  Google Scholar 

  • Yock T, Schneider R, Friedmann A, Adams J, Fullerton B, Tarbell N (2005) Proton RT for orbital rhabdomyosarcoma: clinical outcome and a dosimetric comparison with photons. Int J Radiat Oncol Biol Phys 63:1161–1168

    PubMed  Google Scholar 

  • Yock TI, Yeap BY, Ebb DH, Weyman E, Eaton BR, Sherry NA et al (2016) Long-term toxic effects of proton RT for paediatric medulloblastoma: a phase 2 single-arm study. Lancet Oncol 17:287–298

    PubMed  Google Scholar 

  • Zhu XR, Li Y, Mackin D, Li H, Poenisch F, Lee AK et al (2015) Towards effective and efficient patient-specific quality assurance for spot scanning proton therapy. Cancers (Basel) 7:631–647

    CAS  Google Scholar 

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Lee, R.P., Tinkle, C.L., Lucas, J.T., Merchant, T.E., Boop, F.A. (2020). Pediatric Radiotherapy: Background and Current Paradigms. In: Di Rocco, C., Pang, D., Rutka, J. (eds) Textbook of Pediatric Neurosurgery. Springer, Cham. https://doi.org/10.1007/978-3-319-72168-2_7

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