Abstract
Tumours of the brachial plexus are rare lesions and may be classified as benign or malignant. Within each of these groups, they are further subdivided into those that are neurogenic in origin (schwannoma, neurofibroma and malignant peripheral nerve sheath tumour) and those that are non-neurogenic. Careful pre-operative diagnosis and staging is essential to the successful management of these lesions. Benign neurogenic tumours are well characterized with pre-operative MRI, appearing as well-defined, oval soft-tissue masses, which are typically isointense on T1-weighted images and show the "target sign" on T2-weighted images. Differentiation between schwannoma and neurofibroma can often be made by assessing the relationship of the lesion to the nerve of origin. Many benign non-neurogenic tumours, such as lipoma and fibromatosis, are also well characterized by MRI. This article reviews the imaging features of brachial plexus tumours, with particular emphasis on the value of MRI in differential diagnosis.
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Lusk MD, Kline DG, Garcia CA. Tumors of the brachial plexus. Neurosurgery 1987; 21:439–453.
Sheppard DG, Iyer RB, Fenstermacher MJ. Brachial plexus: demonstration at US. Radiology 1998; 208:402–406.
Retzl G, Kapral S, Greher M, Mauritz W. Ultrasonographic findings of the axillary part of the brachial plexus. Anesth Analg 2001; 92:1271–1275.
King AD, Ahuja AT, King W, Metreweli C. Sonography of peripheral nerve tumors of the neck. AJR Am J Roentgenol 1997; 169:1695–1698.
Simonovsky V. Peripheral nerve schwannoma preoperatively diagnosed by sonography: report of three cases and discussion. Eur J Radiol 1997; 25:47–51.
Castagno AA, Shuman WP. MR imaging in clinically suspected brachial plexus tumor. AJR Am J Roentgenol 1987; 149:1219–1222.
Rapoport S, Blair DN, McCarthy SM, Desser TS, Hammers LW, Sostman HD. Brachial plexus: correlation of MR imaging with CT and pathologic findings. Radiology 1988; 167:161–165.
Posniak HV, Olson MC, Dudiak CM, Wisniewski R, O'Malley C. MR imaging of the brachial plexus. AJR Am J Roentgenol 1993; 161:373–379.
de Verdier HJ, Colletti PM, Terk MR. MRI of the brachial plexus: a review of 51 cases. Comput Med Imaging Graph 1993; 17:45–50.
Sherrier RH, Sostman HD. Magnetic resonance imaging of the brachial plexus. J Thorac Imaging 1993; 8:27–33.
Bilbey JH, Lamond RG, Mattrey RF. MR imaging of disorders of the brachial plexus. J Magn Reson Imaging 1994; 4:13–18.
Wittenberg KH, Adkins MC. MR Imaging of non-traumatic brachial plexopathies: frequency and spectrum of findings. Radiographics 2000; 20:1023–1032.
van Es HW. MRI of the brachial plexus. Eur Radiol 2001; 11:325–336.
Levine E, Huntrakoon M, Wetzel LH. Malignant nerve-sheath neoplasms in neurofibromatosis: distinction from benign tumors by using imaging techniques. AJR Am J Roentgenol 1987; 149:1059–1064.
Stull MA, Moser RP Jr, Kransdorf MJ, Bogumill GP, Nelson MC. Magnetic resonance appearance of peripheral nerve sheath tumors. Skeletal Radiol 1991; 20:9-14.
Cerofolini E, Landi A, DeSantis G, Maiorana A, Canossi G, Romagnoli R. MR of benign peripheral nerve sheath tumors. J Comput Assist Tomogr 1991; 15:593–597.
Suh JS, Abenoza P, Galloway HR, Everson LI, Griffiths HJ. Peripheral (extracranial) nerve tumors: correlation of MR imaging and histologic findings. Radiology 1992; 183:341–346.
Verstraete KL, Achten E, De Schepper A, et al. Nerve sheath tumors: evaluation with CT and MR imaging. J Belge Radiol 1992; 75:311–320.
Varma DG, Moulopoulos A, Sara AS et al. MR imaging of extracranial nerve sheath tumors. J Comput Assist Tomogr 1992; 16:448–453.
Soderlund V, Goranson H, Bauer HC. MR imaging of benign peripheral nerve sheath tumors. Acta Radiol 1994; 35:282–286.
Bhargava R, Parham DM, Lasater OE, Chari RS, Chen G, Fletcher BD. MR imaging differentiation of benign and malignant peripheral nerve sheath tumors: use of the target sign. Pediatr Radiol 1997; 27: 124–129.
Beggs I. Pictorial review: imaging of peripheral nerve tumours. Clin Radiol 1997; 52:8-17.
Lin J, Martel W. Cross-sectional imaging of peripheral nerve sheath tumors: characteristic signs on CT, MR imaging, and sonography. AJR Am J Roentgenol 2001; 176:75–82.
Greenfield GB, Arrington JA, Kudryk BT. MRI of soft tissue tumors. Skeletal Radiol 1993; 22:77–84.
De Schepper AM, De Beuckeleer L, Vandevenne J, Somville J. Magnetic resonance imaging of soft tissue tumors. Eur Radiol 2000; 10: 213–223.
Siegel MJ. Magnetic resonance imaging of musculoskeletal soft tissue masses. Radiol Clin North Am 2001; 39:701–720.
Mukherji S, Castillo M, Wagle AG. The brachial plexus. Semin US CT MRI 1996; 17:519–538.
Sakai F, Sone S, Kiyono K, et al. Magnetic resonance imaging of neurogenic tumors of the thoracic inlet: determination of the parent nerve. J Thorac Imaging 1996; 11:272–278.
Sell PJ, Semple JC. Primary nerve tumours of the brachial plexus. Br J Surg 1987; 74:73–74.
Ogose A, Hotta T, Morita T. Tumors of peripheral nerves: correlation of symptoms, clinical signs, imaging features, and histologic diagnosis. Skeletal Radiol 1999; 28:183–188.
Boutsen Y, De Coene B, Hanson P, Deltombe T, Gilliard C, Esselinckx W. Axillary schwannoma masquerading as cervical radiculopathy. Clin Rheumatol 1999; 18:174–176.
Ganju A, Roosen N, Kline DG, Tiel RL. Outcomes in a consecutive series of 111 surgically treated plexal tumors: a review of the experience at the Louisiana State University Health Sciences Center. J Neurosurg 2001; 95:51–60.
Nakamichi K, Tachibana S. Intraneural ganglion of the branchial plexus. J Hand Surg [Br] 1998; 23:123-125.
Pechman D, Kenan S, Abdelwahab IF, Klein MJ, Lewis MM. Case report 839: Elastofibroma of the right shoulder causing brachial plexus impingement. Skeletal Radiol 1994; 23:459–461.
Price AJ, Compson JP, Calonje E. Fibrolipomatous hamartoma of nerve arising in the brachial plexus. J Hand Surg [Br] 1995; 20:16–18.
Foley KM, Woodruff JM, Ellis FT, Posner JB. Radiation-induced malignant and atypical peripheral nerve sheath tumors. Ann Neurol 1980; 7:311–318.
Gorson KC, Musaphir S, Lathi ES, Wolfe G. Radiation-induced malignant fibrous histiocytoma of the brachial plexus. J Neurooncol 1995; 26:73–77.
Hussussian CJ, Mackinnon SE. Postradiation neural sheath sarcoma of the brachial plexus: a case report. Ann Plast Surg 1999; 43:313–317.
Tacconi L, Thom M, Thomas DG. Primary monophasic synovial sarcoma of the brachial plexus: report of a case and review of the literature. Clin Neurol Neurosurg 1996; 98:249–252.
Swarnkar A, Fukui MB, Fink DJ, Rao GR. MR imaging of brachial plexopathy in neurolymphomatosis. AJR Am J Roentgenol 1997; 169:1189–1190.
Jeffery AR, Ellis FJ, Repka MX, Buncic JR. Pediatric Horner syndrome. J AAPOS 1998; 2:159–167.
Horowitz J, Kline DG, Keller SM. Schwannoma of the brachial plexus mimicking an apical lung tumor. Ann Thorac Surg 1991; 52:555–556.
Beggs I. The ring sign: a new ultrasound sign of peripheral nerve tumours. Clin Radiol 1998; 53:849–850.
Maiuri F, Donzelli R, Benvenuti D, Sardo L, Cirillo S. Schwannomas of the brachial plexus: diagnostic and surgical problems. Zentralbl Neurochir 2001; 62:93–97.
Romner B, Nygaard O, Ingebrigtsen T, Anke IM, Trumpy JH. Large peripheral cystic schwannomas. Two case reports and a review. Scand J Plast Reconstr Surg Hand Surg 1994; 28:231–234.
van der Woude HJ, Verstraete KL, Hogendoorn PCW, Taminiau AHM, Hermans J, Bloem JL. Musculoskeletal tumours: does fast dynamic contrast-enhanced subtraction MR imaging contribute to the characterization? Radiology 1998; 208:821–828.
Baur A, Reiser MF. Diffusion-weighted imaging of the musculoskeletal system in humans. Skeletal Radiol 2000; 29:555–562.
Ferner RE, Lucas JD, O'Doherty MJ, et al. Evaluation of [18]fluorodeoxyglucose positron emission tomography ([18]FDG PET) in the detection of malignant peripheral nerve sheath tumours arising from within plexiform neurofibromas in neurofibromatosis J Neurol Neurosurg Psychiatry 2000; 68:353–357.
Hoos A, Lewis JJ, Urist MJ, et al. Desmoid tumors of the head and neck: a clinical study of a rare entity. Head Neck 2000; 22:814–821.
O'Keefe F, Kim EE, Wallace S. Magnetic resonance imaging in aggressive fibromatosis. Clin Radiol 1990; 42:170–173.
Garant M, Remy H, Just N. Aggressive fibromatosis of the neck: MR findings. AJNR Am J Neuroradiol 1997; 18:1429–1431.
Robbin MR, Murphey MD, Temple HT, Kransdorf MJ, Choi JJ. Imaging of musculoskeletal fibromatosis. Radiographics 2001; 21:585–600.
Gaposchkin CG, Bilsky MH, Ginsberg R, Brennan MF. Function-sparing surgery for desmoid tumors and other low-grade fibrosarcomas involving the brachial plexus. Neurosurgery 1998; 42:1297–1301.
Kransdorf MJ, Bancroft LW, Peterson JJ, Murphey MD, Foster WC, Temple HT. Imaging of fatty tumors: distinction of lipoma and well-differentiated liposarcoma. Radiology 2002; 224:99–104.
Simmons Z, Mahadeen ZI, Kothari MJ, Powers S, Wise S, Towfighi J. Localized hypertrophic neuropathy: magnetic resonance imaging findings and long-term follow-up. Muscle Nerve 1999; 22:28–36.
Snyder M, Cancilla PA, Batzdorf U. Hypertrophic neuropathy simulating a neoplasm of the brachial plexus. Surg Neurol 1977; 7:131–134.
Van den Bergh PY, Thonnard JL, Duprez T, Laterre EC. Chronic demyelinating hypertrophic brachial plexus neuropathy. Muscle Nerve 2000; 23:283–288.
Stumpo M, Foschini MP, Poppi M, Cenacchi G, Martinelli P. Hypertrophic inflammatory neuropathy involving bilateral brachial plexus. Surg Neurol 1999; 52:458–464.
De Maeseneer M, Jaovisidha S, Lenchik L, et al. Fibrolipomatous hamartoma: MR imaging findings. Skeletal Radiol 1997; 26:155–160.
Ducatman BS, Scheithauer BW, Piepgras DG, Reiman HM, Ilstrup DM. Malignant peripheral nerve sheath tumors. A clinicopathologic study of 120 cases. Cancer 1986; 57:2006–2021.
Meller I, Alkalay D, Mozes M, Geffen DB, Ferit T. Isolated metastases to peripheral nerves. Report of five cases involving the brachial plexus. Cancer 1995; 76:1829–1832.
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Saifuddin, A. Imaging tumours of the brachial plexus. Skeletal Radiol 32, 375–387 (2003). https://doi.org/10.1007/s00256-003-0618-0
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DOI: https://doi.org/10.1007/s00256-003-0618-0