Diagnostic usefulness of whole‐body diffusion‐weighted imaging in neurolymphomatosis without FDG uptake

Abstract

A 74yearold woman presented with a 1year history of progressive weakness and pain in the right leg. Despite L4L5 laminoplasty performed at another hospital 2 months before admission, her clinical manifestations had deteriorated and she was referred and admitted to our hospital. Diffusionweighted wholebody imaging with background body signal suppression (DWIBS) showed diffusion restrictions in the L2 and L3 nerve roots, femoral nerve, and uterus (Figure 1A). Uterine needle biopsy revealed diffuse large Bcell lymphoma. These findings indicated a diagnosis of secondary neurolymphomatosis. Wholebody 18Ffluorodeoxyglucosepositron