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Segmental "misty mesentery" on FDG PET/CT: an uncommon manifestation of mesenteric lymphoma
Ameya D Puranik1, Nilendu C Purandare, Archi Agrawal
1From the Department of Nuclear Medicine and Molecular Imaging, Tata Memorial Hospital, Mumbai, India.
Abstract:
Mesenteric lymphomas are commonly seen as bulky hypermetabolic nodal masses on F-FDG PET/CT. Very rarely, these are seen as mesenteric haziness due to localized hyperattenuation of fat, known as "misty mesentery", which morphological imaging-wise has other differentials as well. We report a unique imaging finding of segmental misty mesentery with hypermetabolic mesenteric nodes on FDG PET/CT in a patient who was kept on observation due to inconclusive biopsy, which on follow-up imaging progressed to extensive lymphomatous involvement. Thus, in retrospect, this imaging feature on baseline PET/CT was diagnostic for mesenteric lymphoma.