Epithelioid inflammatory XXXX in abdominal cavity: a case report and review of literature.

@entity7041 @entity2283 @entity242 @entity146 @entity5 @entity7097 @entity3778 @entity23584 @entity5823 @entity2277 @entity490
UNASSIGNED: In this study, we present a rare and difficult case of epithelioid inflammatory @entity242 (EIMS) in abdominal cavity. A 47-year-old female presented as left upper @entity490 for 6 months and abdominal distention for 1 month. CT examination showed a solid mass in the left upper intra-abdomen. Grossly, the @entity5 was found in the mesenterium of colon with the size of 7.5 * 6.5 * 3.5 cm, and was solid and gray-yellowish in the cut surface. Focal myxomatous appearance was observed. Microscopically, stromal myxoid change together with prominant infiltrated lymphocytes, neutrophils and eosinophils were found in the @entity5 , and the @entity5 cells were round, epithelioid with vesicular nuclei, large prominant nucleoli and high mitotic rate. Immunohistochemically, strong diffused positive for @entity2277 , @entity2283 , @entity7041 (nuclear membrane staining pattern) and AAT, focally positive for @entity3778 and @entity5823 , were showed, Ki67 index was about 20%; Especially, @entity7097 and D240 were focally expressed in this @entity5 . FISH analysis showed rearrangement of @entity7041 , and reverse-transcription polymerase chain reaction (RT-PCR) analysis was used to detect the fusion location of the @entity23584 and @entity7041 gene. The diagnosis of EMIS was made based on its location, typical morphology, the immunohistochemical features especially the nuclear membranous immunostaining of @entity7041 and rearrangement of @entity23584 - @entity7041 . The @entity5 showed @entity146 and a poor prognosis. The differential diagnosis and other treatments of EMIS are also discussed in the present study. This finding may increase the case information of EMIS.
