[Sclerosing mesenteritis. Report of two cases with different clinical presentation].

Sclerosing mesenteritis is a rare disease of the mesenterium of unknown cause and chronic evolution. Two presentations have been reported: mesenteric panniculitis and retractile mesenteritis; inflammation of mesenteric fat predominates in one of them, while fibrotic thickening and shortening of the mesenterium is characteristic of the other. We report two cases of sclerosing mesenteritis which presented in very different ways. One patient suffered an episode of intestinal obstruction, and the second one was admitted for evaluation of fever of unknown origin (FUO). While intestinal obstruction is a relatively common complication of sclerosing mesenteritis, its presentation as a FUO is exceptional.