Mesenteric tumefactions.

Mesenteric tumefactions comprise a group of non-neoplastic conditions that present as an intra-abdominal mass. Symptoms vary from none to obstruction of the gastrointestinal tract. Histologic examination reveals dystrophy, fibrosis, or inflammation of the mesenteric fat. Despite a large number of descriptive terms currently in use, this study suggests that all these lesions are part of a single clinical and histologic continuum.