title: Sacral nerve root neurolymphomatosis diagnosed on FDG-PET/CT and magnetic resonance imaging.
abstract: A 67-year-old male with transformed diffuse large B cell lymphoma presented with severe neuropathic-type pain radiating down his posterior right thigh. Initial lumbar radiographs and MRI of the lumbar spine failed to identify a cause for his symptoms. A FDG-PET/CT scan demonstrated increased focal FDG uptake in the right sacral (S2) nerve root. Review of the lumbar spine MRI performed 6 days earlier demonstrated abnormal right S2 nerve root enhancement. The combined FDG-PET/CT and MRI findings allowed a presumptive diagnosis of neurolymphomatosis. However, the patient succumbed to his illness before planned local radiotherapy could be performed.
authors: Department of Radiology/Nuclear Medicine, University of Michigan, Ann Arbor, MI 48109-0028, USA.
authors: Qian
authors: Q
authors: Dong
authors: Ka Kit
authors: KK
authors: Wong
authors: Anca M
authors: AM
authors: Avram
mesh_terms: D000368:Aged; D003937:Diagnosis, Differential; D017809:Fatal Outcome; D019788:Fluorodeoxyglucose F18; D006801:Humans; D016393:Lymphoma, B-Cell / Q000175:diagnosis*; D008279:Magnetic Resonance Imaging; D008297:Male; D049268:Positron-Emission Tomography; D019275:Radiopharmaceuticals; D012447:Sacrum; D013127:Spinal Nerves / Q000473:pathology*; D014057:Tomography, X-Ray Computed
chemical_list: D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18