title: Recurrence of non-Hodgkin's lymphoma isolated to the right masticator and left psoas muscles.
abstract: We present the clinical and magnetic resonance imaging findings of a patient who, following treatment for pancreatic non-Hodgkin's lymphoma (NHL), relapsed with apparently isolated involvement of the right masticator space and left psoas muscles. Non-Hodgkin's lymphoma arising from the masticator space muscles is very rare. In addition, simultaneous lymphomatous involvement of multiple discrete skeletal muscle sites, in the absence of disease elsewhere, has previously only been reported in the limb or limb girdle muscles. Lymphoma should be considered as a cause of isolated enlarged skeletal muscles, even when involving such distant sites.
authors.affiliation: Department of Neuroimaging, Queen Elizabeth Hospital, Edgbaston, Birmingham, West Midlands, England.
authors.forename: S E
authors.initials: SE
authors.lastname: Connor
authors.forename: S V
authors.initials: SV
authors.lastname: Chavda
authors.forename: R
authors.initials: R
authors.lastname: West
mesh_terms: D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007089:Image Enhancement; D007091:Image Processing, Computer-Assisted / Q000379:methods; D016393:Lymphoma, B-Cell / Q000175:diagnosis*; D008228:Lymphoma, Non-Hodgkin / Q000175:diagnosis*; D008279:Magnetic Resonance Imaging / Q000379:methods; D008406:Masseter Muscle / Q000473:pathology; D008410:Masticatory Muscles / Q000473:pathology*; D008875:Middle Aged; D019042:Muscle Neoplasms / Q000175:diagnosis*; D009364:Neoplasm Recurrence, Local / Q000175:diagnosis*; D010190:Pancreatic Neoplasms / Q000473:pathology; D016658:Psoas Muscles / Q000473:pathology*; D011626:Pterygoid Muscles / Q000473:pathology; D013703:Temporal Muscle / Q000473:pathology; D014057:Tomography, X-Ray Computed