Florid diffuse peritoneal deciduosis mimicking carcinomatosis in a primigravida patient: a case report and review of the literature

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A case report describes a primigravida patient with twin pregnancy whose peritoneal nodules, initially suspicious for carcinomatosis, were found to be florid diffuse peritoneal deciduosis that resolved postpartum.

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Abstract

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.

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MeSH descriptors

Carcinoma Cesarean Section Decidua Gravidity Peritoneal Diseases Peritoneal Neoplasms Premature Rupture of Fetal Membranes Adult Biomarkers, Tumor Biomarkers, Tumor Biopsy Carcinoma Carcinoma Decidua Decidua Diagnosis, Differential Female Humans Immunohistochemistry Peritoneal Diseases

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europepmc
last seen: 2026-10-11T09:27:45.537177+00:00
pubmed
last seen: 2026-10-08T21:12:48.765018+00:00