Concomitant sclerosing mesenteritis and inflammatory pseudotumor simulating gastric lymphoma or linitis plastica.

Both inflammatory pseudotumors and sclerosing (retractile) mesenteritis are uncommon conditions of unknown origin. A number of authors have reported patients presenting with complaints that were attributed to one or the other of these entities. In our review of the literature, we were unable to find a single case report of mixed abdominal findings that could be explained by the presence of both conditions. We report a case of the patient presenting with abdominal mass that was identified as having features of both sclerosing mesenteritis and inflammatory pseudotumor on pathologic diagnosis.