IgG4-related sclerosing disease with mesenteric and retroperitoneal involvement

Mesenteric Amyloidosis: Radiologic Imaging with Pathologic Correlation

“…Other primary neoplasms of the mesentery are much rarer and have distinct radiologic appearances when compared to amyloid, either with predominantly lipid content as seen in lipomas and liposarcomas, T2 hyperintense signal as seen in schwannomas, or hypervascularity as seen in cases of leiomyosarcoma, myxofibrosarcoma, and paraganglioma. [25] Sclerosing mesenteritis (SM) is another disease that should be considered in the differential diagnosis. SM is a rare inflammatory condition that can affect the mesentery, and the acute form is characterized by a low attenuation focal area within the mesenteric fat that is surrounded by a pseudocapsule, commonly referred to as a "misty mesentery. "…”