Abstract
Background
Teratomas of the cranial vault are divided into histopathological subtypes and grouped by prognoses: mature (good prognosis), mixed/malignant and immature teratomas (intermediate prognosis). This schema also includes non-teratomatous tumors. The authors of this study sought to elucidate histologically dependent predictors of survival and further clarify the classification system of intracranial teratomas.
Methods
We performed a systematic analysis of the published literature to identify studies describing patients with intracranial teratomas diagnosed with magnetic resonance imaging (MRI) and presenting definite information on histologies, therapies, and outcomes at a minimum follow-up of 2 years. Disease-free (DFS) and overall survival (OS) were evaluated.
Results
A total of 18 articles comprised of 134 patients were included. On univariate analysis, male sex and gross-total resection (GTR) were associated with high mean DFS (p = 0.0362 and p < 0.0001, respectively). On multivariate analysis, mature teratomas located in the pineal, and those having undergone subtotal resection (STR) demonstrated high mean OS (p = 0.0023 and p = 0.0044, respectively). Mature and mixed/malignant suprasellar teratomas had equally higher mean OS versus immature suprasellar teratomas (p < 0.0001). Mature and immature teratomas treated with adjuvant therapy had significantly higher mean OS compared to those managed with surgery alone (p = 0.0421 and p = 0.0423, respectively). Males with immature teratomas had the highest mean OS (p < 0.0001). Immature teratomas managed with surgery alone had higher mean DFS, but lower mean OS, compared to those treated with adjuvant therapy (p = 0.0176 and p = 0.0423, respectively).
Conclusions
Our data highlight the divergent nature of the different histopathological subtypes of teratomas, and suggest that survival outcomes are multifactorial. Specifically, male sex, pineal, suprasellar, GTR, and STR were dependent predictors of OS, while histopathology was an independent predictor of OS.
Similar content being viewed by others
References
Aoyoma H, Shirato H, Yoshida H, Hareyama M, Nishio M, Yanagisawa T, Kakuto Y, Watarai J, Inakoshi H, Miyasaka K (1998) Retrospective multi-institutional study of radiotherapy for intracranial non-germinomatous germ cell tumors. Radiotherapy Oncol 49:55–59
Arai H, Sato K, Ito M, Ishimoto K, Yanai A (1992) Skull base reconstruction in cases of intracranial teratoma extending into the extracranial structures. Surg Neurol 38:383–390
Araki K, Koga M, Okada T, Kurashige T, Naruse K, Hiroi M (2000) A boy with normal growth in spite of growth hormone deficiency after resection of a suprasellar teratoma. Endocr J 47:S101–S104
Arseni C, Danaila L, Nicola N, Georgian M, Instacil C (1969) Intracranial teratomas. Acta Neurochir (Wien) 20:37–51
Bamberg M, Kortmann RD, Calaminus G, Becker G, Meisner C, Harms D, Göbel U (1999) Radiation therapy for intracranial germinoma: results of the German cooperative prospective trials MAKEI 83/86/89. J Clin Oncol 17:2585–2592
Berhouma M, Jemel H, Ksira I, Khaldi M (2008) Transcortical approach to a huge pineal mature teratoma. Pediatr Neurosurg 44:52–54
Brandes AA, Pasetto LM, Monfardini S (2000) The treatment of cranial germ cell tumours. Cancer Treat Rev 26:233–242
Bruce JN, Stein BM (1995) Surgical management of pineal region tumors. Acta Neurochir (Wien) 134:130–135
Cardellicchio S, Farina S, Buccoliero AM, Agresti B, Genitori L, de Martino M, Fangusaro J, Sardo I (2014) Successful treatment of metastatic βHCG-secreting germ cell tumor occurring 3 years after total resection of a pineal mature teratoma. Eur J Pediatr 173. doi:10.1007/s00431-014-2282-x
Chang CV, Nunes VS, Felicio AC, Zanini MA, Cunha-Neto MBC, Barros de Castro AV (2008) Mixed germ cell tumor of the pituitary-hypothalamic region presenting as craniopharyngioma: case report and review of the literature. Arq Bras Endocrinol Metabol 52:1501–1504
Chernov MF, Kamikawa S, Yamane F, Ishihara S, Kubo O, Hori T (2006) Neuroendoscopic biopsy of tumors in the pineal region and posterior third ventricle: indications, technique, complications, and results. Neurosurgery 59:267–277
Chiloiro S, Giampietro A, Bianchi A, De Marinis L (2016) Clinical management of teratoma, a rare hypothalamic-pituitary neoplasia. Endocrine 53:636–642
Chiu CD, Chung WY, Pan DHC, Wong TT, Shih YS, Lee LS (2005) Gamma Knife radiosurgery for intracranial mature teratoma—long-term results and review of literature. Surg Neurol 65:343–351
Cho KT, Wang KC, Kim SK, Shin SH, Chi JG, Cho BK (2002) Pediatric brain tumors: statistics of SNUH, Korea (1959-2000). Childs Nerv Syst 18:30–37
Chung WY, Pan HC, Guo WY, Shiau CY, Wang LW, Wu HM, Lee LS (1998) Protection of visual pathway in Gamma Knife radiosurgery for craniopharyngiomas. Stereotactic Funct Neurosurg 70:139–151
Cohen A, Wilson JA, Sadeghi-Nejad A (1991) Gonadotropin secreting teratoma causing precocious puberty. Neurosurgery 28:597–603
Cuccia V, Galarza M (2006) Pure pineal germinomas: analysis of gender incidence. Acta Neurochir (Wien) 148:865–871
Cushing B, Perlman EJ, Marina NM, Castleberry RP (2002) Germ cell tumors. Lippincott Williams & Wilkins Philadelphia
Czırjak S, Pasztor E, Slowık F, Szeifort S (1992) Third ventricle germinoma after total removal of intrasellar teratoma. J Neurosurg 77:643–647
da Silva NS, Cappellano AM, Diez B, Cavalheiro S, Gardner S, Wisoff J, Kellie S, Parker R, Garvin J, Finlay J (2010) Primary chemotherapy for intracranial germ cell tumors: results of the third international CNS germ cell tumor study. Pediatr Blood Cancer 54:377–383
Dearnley DP, Hern A, Whittaker S, Bloom HG (1990) Pineal and CNS germ cell tumors: Royal Marsden Hospital experience 1962-1987. Int J Radiot Oncol Biol Phy 18(4):773–81
Edwards MS, Hudgins RJ, Wilson CB, Levin VA, Wara WM (1988) Pineal region tumors in children. J Neurosurg 68:689–697
Flamant F, Baranzelli M, Kalifa C, Lemerle J (1990) Treatment of malignant germ cell tumors in children: experience of the Institut of Gustave Roussy and the French Society of Pediatric Oncology. Critical Rev Oncology/Hematol 19:99–110
Fukuoka K, Yanagisawa T, Suzuki T, Wakiya K, Matsutani M, Sasaki A, Nishikawa R (2014) Successful treatment of hemorrhagic congenital intracranial immature teratoma with neoadjuvant chemotherapy and surgery. J Neurosurg Pediatr 13:38–41
Gao Y, Jiang J, Liu Q (2014) Clinicopathological and immunohistochemical features of primary central nervous system germ cell tumors: a 24-years experience. Int J Clin Exp Pathol 7:6965–6972
Garrè ML, El-Hossainy MO, Fondelli P, Göbel U, Brisigotti M, Donati PT, Nantron M, Ravegnani M, Garaventa A, De Bernardi B (1995) Is chemotherapy effective therapy for intracranial immature teratoma? Cancer 77:977–982
Goebel U, Schneider DT, Calaminus G, Haas RJ, Schmidt P, Harms D (2000) Germ-cell tumors in childhood and adolescence. GPOH MAKEI and the MAHO study groups. Ann Oncol 11:263–271
Goetz CM, Schmid I, Pietsch T, Peraud A, Haas RJ (2002) Mixed malignant germ cell tumour of the lateral ventricle in an 8-month-old girl: case report and review of the literature. Childs Nerv Syst 18:644–647
Goodwin TL, Sainani K, Fisher PG (2009) Incidence patterns of central nervous system germ cell tumors: a SEER Study. J Pediatr Hematol Oncol 31:541–544
Goyal N, Kakkar A, Singh PK, Sharma MC, Chandra PS, Mahapatra AK, Sharma BS (2013) Intracranial teratomas in children: a clinicopathological study. Childs Nerv Syst 29:2035–2042
Goyal N, Singh PK, Kakkar A, Sharma MC, Mahapatra AK (2012) Mature teratoma in association with neural tube defect (occipital encephalocele): series of four cases and review of literature. Pediatr Neurosurg 48:67–72. doi:10.1159/000339090
Haas-Kogan DA, Missett BT, Wara WM, Donaldson SS, Lamborn KR, Prados MD, Fisher PG, Huhn SL, Fisch BM, Berger MS, Le QT (2003) Radiation therapy for intracranial germ cell tumors. Int J Radiat Oncol Biol Phys 56:511–518
Hancq S, De Witte O, Brotchi J (2002) Pineal region surgery. Experience in 22 patients. Neurochirurgie 48:14–24
Ho DM, Liu HC (1992) Primary intracranial germ-cell tumour. Cancer 70:1577–1584
Hoffman HJ, Otsubo H, Hendrick EB, Humphreys RP, Drake JM, Becker LE, Greenberg M, Jenkin D (1991) Intracranial germ-cell tumors in children. J Neurosurg 74:545–551
Huang X, Zhang R, Mao Y, Zhou LF, Zhang C (2016) Recent advances in molecular biology and treatment strategies for intracranial germ cell tumors. World J Pediatr 12:275–282
Huang X, Zhang R, Zhou LF (2009) Diagnosis and treatment of intracranial immature teratoma. Pediatr Neurosurg 45:354–360
Huang X, Zhang R, Zhou LF (2009) Grading system for diagnosis and treatment of intracranial nongerminomatous malignant germ cell tumors. Zhonghua Yi Xue Za Zhi 89:2333–2336
Jelinek J, Smirniotopoulos JG, Parisi JE, Kanzar M (1990) Lateral ventricular neoplasms of the brain: differential diagnosis based on clinic, CT and MR findings. AJR 11:567–574
Jennings MT, Gelman R, Hochberg F (1985) Intracranial germ-cell tumors: natural history and pathogenesis. J Neurosurg 63:155–167
Kakkar A, Biswas A, Kalyani N, Chatterjee U, Suri V, Sharma MC, Goyal N, Sharma BS, Mallick S, Julka PK, Chinnaswamy G, Arora B, Sridhar E, Chatterjee S, Jalali R, Sarkar C (2016) Intracranial germ cell tumors: a multi-institutional experience from three tertiary care centers in India. Childs Nerv Syst
Kanno T (1995) Surgical pitfalls in pinealoma surgery. Minim Invasive Neurousurg 38:153–157
Keene D, Johnston D, Strother D, Fryer C, Carret AS, Crooks B, Eisenstat D, Moghrabi A, Wilson B, Brossard J, Mpofu C, Odame I, Zelcer S, Silva M, Samson Y, Hand J, Bouffet E, Consortium CPBT (2007) Epidemiological survey of central nervous system germ cell tumors in Canadian children. J Neurooncol 82:289–295
Khan N, Klimo PJ, Harreld J, Armstrong GT, Michael LM (2013) Mature teratoma of the petrous bone with extension into the cerebellopontine angle: case report. J Neurol Surg Rep 74:96–100
Khatua S, Dhall G, O’Neil S, Jubran R, Villablanca JG, Marachelian A, Nastia A, Lavey R, Olch AJ, Gonzalez I, Gilles F, Nelson M, Panigrahy A, McComb G, Krieger M, Fan J, Sposto R, Finlay JL (2010) Treatment of primary CNS germinomatous germ cell tumors with chemotherapy prior to reduced dose whole ventricular and local boost irradiation. Pediatr Blood Cancer 55:42–46
Kim JW, Kim WC, Cho JH, Kim DS, Shim KW, Lyu CJ, Won SC, Suh CO (2011) A multimodal approach including craniospinal irradiation improves the treatment outcome of high-risk intracranial nongerminomatous germ cell tumors. Int J Radiat Oncol Biol Phys 84:625–631
Kleihues P, Burger PC, Scheithauer BW (1993) Histological typing of tumours of the central nervous system. Springer, Berlin
Kochi M, Itoyama Y, Shiraishi S, Kitamura I, Marubayashi T, Ushio Y (2003) Successful treatment of intracranial nongerminomatous malignant germ cell tumors by administering neoadjuvant chemotherapy and radiotherapy before excision of residual tumors. J Neurosurg 99:106–114
Kodera T, Bozinov O, Surucu O, Ulrich NH, Burkhardt JK, Bertalanffy H (2011) Neurosurgical venous considerations for tumors of the pineal region resected using the infratentorial supracerebellar approach. J Clin Neurosci 18:1481–1485
Konovalov AN, Pitskhelauri DI (2003) Principles of treatment of the pineal region tumors. Surg Neurol 59:250–268
Kun L, MacDonald S, Tarbell N (2011) Supratentorial brain tumors. In: Halperin E, Constine L, Tarbell N, et al. e (eds) Pediatric radiation oncology. Lippincott Williams & Wilkins Philadelphia
Lee D, Suh YL (2010) Histologically confirmed intracranial germ cell tumors; an analysis of 62 patients in a single institute. Virchows Arch 457:347–357
Lee YH, Park EK, Park YS, Shim KW, Choi JU, Kim DS (2009) Treatment and outcomes of primary intracranial teratoma. Childs Nerv Syst 25:1581–1587
Li D, Hao SY, Wu Z, Zhang LW, Zhang JT (2014) Primary medulla oblongata teratomas. J Neurosurg Pediatr 14:296–300
Logothetis CJ, Samuels ML, Triade A, Johnson DE (1982) The growing teratoma syndrome. Cancer 50:1629–1635
Matsutani M, Sano K, Takakura K, Fujimaki T, Nakamura O, Funata N, Seto T (1997) Primary intracranial germ cell tumors: a clinical analysis of 153 histologically verified cases. J Neurosurg 86:446–455
McCarthy BJ, Shibui S, Kayama T, Miyaoka E, Narita Y, Murakami M, Matsuda A, Matsuda T, Sobue T, Palis BE, Dolecek TA, Kruchko C, Engelhard HH, Villano JL (2012) Primary CNS germ cell tumors in Japan and the United States: an analysis of 4 tumor registries. Neuro Oncol 14:1194–1200
Mehrotra N, Shamji MF, Vassilyadi M, Ventureyra ECG (2009) Intracranial tumors in first year of life: the CHEO experience. Childs Nerv Syst 26:1563–1569
Muzumdar D, Goel A, Desai K, Shenoy A (2001) Mature teratoma arising from the sella. Neurol Med Chir 41:356–359
Noudel R, Vinchon M, Dhellemmes P, Litré CF, Rosseaux P (2008) Intracranial teratomas in children: the role and timing of surgical removal. J Neurosurg Pediatr 2:331–338
Ogawa K, Toita T, Nakamura K, Uno T, Onishi H, Itami J, Shikama N, Saeki N, Yoshii Y, Murayama S (2003) Treatment and prognosis of patients with intracranial non-germinomatous malignant germ cell tumors. Cancer 98:369–376
Ogiwara H, Kiyotani C, Terashima K, Morota N (2015) Second-look surgery for intracranial germ cell tumors. Neurosurgery 76:658–661
Oi S, Shibata M, Tominaga J, Honda Y, Shinoda M, Takei F, Tsugane R, Matsuzawa K, Sato O (2000) Efficacy of neuroendoscopic procedures in minimally invasive preferential management of pineal region tumors: a prospective study. J Neurosurg 932:245–253
Oliveira J, Cerejo A, Silva PS, Polónia P, Pereira J, Vaz r (2013) The infratentorial supracerebellar approach in surgery of lesions of the pineal region. Surg Neurol 4. doi:10.4103/2152-7806.122504
Oliver RT, Dhawliwal HS, Hope-Stone HF, Blandy JP (1988) Short course etoposide, bleomycin and cisplatin in the treatment of metastatic germ-cell tumours. Appraisal of its potential as adjuvant chemotherapy for stage 1 testis tumours. Br J Urology 61(1):53–8
Parisi JE, Mena H (1993) Nonglial tumors. In: Nelson JS PJe (ed) Principle and practice of neuropathology. Mosby St. Louis, pp 203-266
Phulwani N, Pandey T, Khatri J, Ramakrishnaiah RH, Shah CC (2011) Imaging manifestations and techniques in diabetes insipidus. In: Kamoi PK (ed) Diabetes Insipidus. InTech, Available from: http://www.intechopen.com/books/diabetes-insipidus/imaging-manifestations-and-techniques-in-diabetesinsipidus
Poynter JN, Fonstad R, Tolar J, Spector LG, Ross JA (2014) Incidence of intracranial germ cell tumors by race in the United States, 1992-2010. J Neuro-Oncol 120:381–388
Regis J, Bouillot P, Rouby-Volot F, Figarella-Branger D, Du-four H, Peragut JC (1996) Pineal region tumors and the role of stereotactic biopsy: review of the mortality, morbidity, and diagnostic rates in 370 cases. Neurosurgery 39:907–914
Rickert CH, Paulus W (2001) Epidemiology of central nervous system tumors in childhood and adolescence based on the new WHO classification. Childs Nerv Syst 17:503–511
Robertson PL, DaRosso RC, Allen JC (1997) Improved prognosis of intracranial non-germinoma germ cell tumors with multimodality therapy. J Neuro-Oncol 32:71–80
Rondinelli PI, Osório CA, Lopes LF (2005) Primary intracranial germ cell tumors in children: evaluation of fourteen cases. Arq Neuropsiquiatr 63:832–836
Rosenblum MK, Nakazato Y, Matsutani M (2007) CNS germ cell tumors. In: Louis DN, Ohgaki H, Wiestler OD, Cavenee WK (eds) WHO classification of tumours of the central nervous system. IARC Lyon
Russel DS, Rubinstein LJ (1989) Tumours and tumour-like lesion of maldevelopmental origin. Pathology of tumours of the nervous system, 5th ed. Edward Arnold London, pp 681-687
Saitoh M, Tamaki N, Kokunai T, Matsumoto S (1991) Clinico-biological behavior of germ-cell tumors. Childs Nerv Syst 7:246–250
Sandow BA, Dory CE, Aguiar MA, Abuhamad AZ (2004) Congenital intracranial teratoma. Radiographics 24:1165–1170
Sano K (1999) Pathogenesis of intracranial germ cell tumors reconsidered. J Neurosurg 90:258–264
Sawamura Y, Ikeda J, Shirato H, Tada M, Abe H (1998) Germ cell tumours of the central nervous system: treatment consideration based on 111 cases and their long-term clinical outcomes. Eur J Cancer 34:104–110
Sekhon LHS, Morgan ML (1991) Pineal teratoma and its relationship to intracerebral development: Case report. Neurosurgery 28:594–596
Selçuki M, Attar A, Yüceer N, Tuna H, Çakiroglu E (1998) Mature teratoma of the lateral ventricle: report of two cases. Acta Neurochir (Wien) 140:171–174
Senan S, Roy R, Kaye SB (1991) Malignant pineal teratomas: a report on three patients and the case for craniospinal irradiation following chemotherapy. Radiot Oncol 22:209–213
Shaffrey ME, Lanzino G, Lopes MB, Hessler RB, Kassell NF, VandenBerg SR (1996) Maturation of intracranial immature teratomas. Report of two cases J Neurosurg 85:672–676
Sharma MC, Jain D, Sarkar C, Suri V, Garg A, Singh M, Mahapatra AK, Sharma BS (2008) Spinal teratomas: a clinico-pathological study of 27 patients. Acta Neurochir (Wien):245-252
Shin JH, Lee HK, Choi CG, Suh DC, Kim CJ, Hong SK, Na DG (2001) MR imaging of central diabetes insipidus: a pictorial essay. Korean J Radiol 2:222–230
Shokry A, Janzer RC, von Hochstetter AR, Yasargil MG, Hedinger C (1985) Primary intracranial germ-cell tumors: a clinicopathologic study of 14 cases. J Neurosurg 62:826–830
Sinha VD, Dharker SR, Pandey CL (2001) Congenital intracranial teratoma of the lateral ventricle. Neurol India 49:170–173
Smirnitopoulos JG, Lee SH (1992) Primary tumors in adults. In: Lee SH, Rao KCVG, Zimmerman RAe (eds) Cranial MRI and CT, 3rd ed. McGraw Hill New York, pp 295-380
Smith AA, Weng E, Handler M, Foreman NK (2004) Intracranial germ cell tumors: a single institution experience and review of the literature. J Neuro-Oncol 68:153–159
Sperger JM, Chen X, Draper JS, Antosiewicz JE, Chon CH, Jones SB, Brooks JD, Andrews PW, Brown PO, Thomson JA (2003) Gene expression patterns in human embryonic stem cells and human pluripotent germ cell tumors. Proc Natl Acad Sci U S A 100:13350–13355
Stein BM (1979) Surgical treatment of pineal tumors. Clin Neurosurg:490-510
Stein BM, Bruce JN (1992) Surgical management of pineal region tumors. Clin Neurosurg 39:509–532
Takeuchi J, Mori K, Moritake K, Tani F, Waga SHH (1975) Teratomas in the suprasellar region: report of five cases. Surg Neurol 3:247-255
Tandon N, Chopra R, Ghoshal S, Singh P, Sharma BS (1999) Mixed germ cell tumour of the pineal region: a case report. Neurol India 47:321–323
Tekeuchi J, Mori K, Moritake K (1975) Teratoma in the suprasella region: report of five cases. Surg Neurol 3:247–255
Tsoukalas N, Tolia M, Kostakis ID, Pistamaltzian N, Tryfonopoulos D, Lypas G, Koumakis G, Barbounis V, Goutas N, Efremidis A (2013) Coexistence of intracranial germ cell tumor and craniopharyngioma in an adolescent: case report and review of the literature. Int J Clin Exp Med 6:211–218
Ushio Y, Kochi M, Kuratsu J, Itoyama Y, Marubayashi T (1999) Preliminary observations for a new treatment in children with primary intracranial yolk sac tumor or embryonal carcinoma. Report of five cases. J Neurosurg 90:133–137
Vijayaraghavan S, Brock C, Monson JP, Snodgrass GJ, King TT, Gallagher C, Oliver RT (1993) Does the rapid response to cisplatin-based chemotherapy justify its use as primary treatment for intracranial germ-cell tumours? Q J Med 86:801–810
Wakai S, Arai T, Nagai M (1984) Congenital brain tumours. Surg Neurol 21:597
Wang HW, Wu YH, Hsieh JY, Liang ML, Chao ME, Liu DJ, Hsu MT, Wong TT (2010) Pediatric primary central nervous system germ cell tumors of different prognosis groups show characteristic miRNome traits and chromosome copy number variations. BMC Genomics 11:132
Willis RA (1967) Pathology of tumors. Butterworth London
Wong LC, Yang TL, Gao F, Tan AM, Sethi VK, Chua EJ (2002) Intracranial germ cell tumour: experience of a Singaporean institution over 11-year period. Singap Med J 43:182–188
Wong TT, Ho DM, Chang KP, Yen SH, Guo WY, Chang FC, Liang ML, Pan HC, Chung WY (2005) Primary pediatric brain tumors: statistics of Taipei VGH, Taiwan (1975-2004). Cancer 104:2156–2167
Yagi K, Kageji T, Nagahiro S, Horiguchi H (2004) Growing teratoma syndrome in a patient with a non-germ germinomatous germ cell tumor in the neurohypophysis. Neurol Med Chir 44:33–37
Yamini B, Refai D, Rubin CM, Frim DM (2004) Initial endoscopic management of pineal region tumors and associated hydrocephalus: clinical series and literature review. J Neurosurg 100:437–441
Yoshida J, Sugita K, Kobayashi T, Takakura K, Shitara N, Matsutani M (1993) Prognosis of intracranial germ cell tumors: effectiveness of chemotherapy with cisplatin and etoposide (CDDP and VP-16). Acta Neurochir (Wien) 120:111–117
Zimmerman RA, Bilaniuk LT, Wood JH, Bruce DA, Schut L (1980) Computed tomography of pineal, parapineal and histologically related tumors. Radiology 137:669–677
Zygourakis CC, Davis JL, Kaur G, Ames C, Gupta N, Auguste KI, Parsa AT (2015) Management of central nervous system teratoma. J Clin Neurosci 22:98–104
Acknowledgements
Carlito Lagman is partially supported by a Gurtin Skull Base Research Fellowship. Timothy T. Bui is a recipient of the David Geffen Medical Scholarship. Lawrance K. Chung is partially supported by an AMA foundation Seed Grant and an AΩA Carolyn L. Kuckein Student Research Fellowship. Isaac Yang is partially supported by a Visionary Fund Grant, an Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research UCLA Scholars in Translational Medicine Program Award, the Jason Dessel Memorial Seed Grant, the UCLA Honberger Endowment Brain Tumor Research Seed Grant and the Stop Cancer (US) Research Career Development Award.
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
This study is a systematic analysis and therefore is exempt from Institutional Review Board approval.
Disclosures of potential conflicts of interest
All authors certify that they have no affiliations with or involvement in any organization or entity with any financial interest (such as honoraria; participation in speakers’ bureaus; membership, employment, consultancies, stock of ownership, or other equity interest; and expert testimony or patent-licensing arrangements), or non-financial interest (such as personal or professional relationships, affiliations, knowledge or beliefs) in the subject matter or materials discussed in this manuscript.
Research involving human participants and/or animals
Not applicable.
Informed consent
This type of study does not require formal consent.
Additional information
Carlito Lagman and Timothy T. Bui contributed equally to this work.
Rights and permissions
About this article
Cite this article
Lagman, C., Bui, T.T., Voth, B.L. et al. Teratomas of the cranial vault: a systematic analysis of clinical outcomes stratified by histopathological subtypes. Acta Neurochir 159, 423–433 (2017). https://doi.org/10.1007/s00701-016-3064-1
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00701-016-3064-1