A case of a 27 year old G1P0 female with a dichorionic, diamniotic twin pregnancy presenting with premature rupture of membranes found to have omental caking and diffuse yellow-tan peritoneal nodules, clinically suspicious for carcinomatosis. The case work-up showed this to be an example of florid-diffuse peritoneal deciduosis mimicking carcinomatosis which has since resolved 4 months postpartum.

A case of a 27 year old G1P0 female with a dichorionic, diamniotic twin pregnancy presenting with premature rupture of membranes found to have omental caking and diffuse yellow-tan peritoneal nodules, clinically suspicious for carcinomatosis. The case work-up showed this to be an example of florid-diffuse peritoneal deciduosis mimicking carcinomatosis which has since resolved 4 months postpartum.

The term "deciduosis" is used to describe the severe pregnancy-associated occurrence of ectopic decidua with a usually asymptomatic course. We report on two cases of massive maternal intra-abdominal bleeding due to such symptomatic changes. The complications arose at different time points for the two cases: prepartum (26th week of pregnancy) or, respectively, - reported here for the first time ...

background:   acute appendicitis with appendicial endometriosis is a very infrequently encountered condition during pregnancy. decidualization is the hypertrophy of endometrial stromal cells by the effect of progesterone. similarly, in pregnancy, ectopic stromal endometrial cells in endometriosis can also be transformed by the same mechanism and ectopic decidua (deciduosis) may occur case: here...

Material and Method: A total of seven cases where decidualization was found in the peritoneal biopsy taken during pregnancy at the Baskent University Adana Research and Medical Center, Department of Pathology were included in this study. The clinical features of the cases were obtained from their clinical folders. The morphological findings were recorded and the peritoneal biopsies were analyze...