title: Solitary neurolymphomatosis of the brachial plexus mimicking benign nerve sheath tumour: case report.
abstract: Neurolymphomatosis typically appears as a diffuse lesion with thickening of the affected nerves on magnetic resonance imaging (MRI). MRI in the present case revealed a well-defined, solitary lesion showing continuity with brachial plexus nerves. Findings including clinical symptoms resembled benign nerve sheath tumour rather than neurolymphomatosis. Intra-operatively, the C8 root was focally swollen, corresponding to a well-circumscribed lesion on MRI. The diagnosis of neurolymphomatosis was obtained only after resection biopsy. Post-operatively, (18)F-fluorodeoxyglucose positron emission tomography proved useful for follow-up evaluation. We offer the first description of the MRI characteristics of brachial plexopathy in neurolymphomatosis, along with the clinical course.
authors.affiliation: Department of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan. m-okada@med.osaka-cu.ac.jp
authors.forename: Mitsuhiro
authors.initials: M
authors.lastname: Okada
authors.forename: Kiyohito
authors.initials: K
authors.lastname: Takamatsu
authors.forename: Naoto
authors.initials: N
authors.lastname: Oebisu
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Nakamura
mesh_terms: D000818:Animals; D020516:Brachial Plexus Neuropathies / Q000175:diagnosis*; D003937:Diagnosis, Differential; D006801:Humans; D016403:Lymphoma, Large B-Cell, Diffuse / Q000175:diagnosis*; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D018317:Nerve Sheath Neoplasms / Q000175:diagnosis*; D010524:Peripheral Nervous System Neoplasms / Q000175:diagnosis*