Philippine E-Journals

Primary serous papillary carcinoma arising from the omentum with metastasis to the parametrium and bilateral ovarian and fallopian tube serosal surface: A case report

Francia Victoria A. De Los Reyes | Janet Lim-Dy

 

Abstract:

Introduction Primary peritoneal serous carcinoma is a rare, malignant, epithelial tumor arising from the peritoneum and associated tissues, that presents commonly with diffuse peritoneal involvement and ascites. Carcinomas that morphologically resemble papillary serous carcinoma of the ovary, with uninvolved or minimally involved ovaries, with the lesion of the peritoneum larger than other primary ovarian lesions, and with no other identifiable primary tumor, are categorized under such. The aim of this report is to contribute to the fund of knowledge pertinent to this rare lesion with a relatively poor prognosis. Case Summary This report describes a case of primary carcinoma of the omentum with papillary configuration in a 53-year-old woman who presented with abdominal distention. She had no prior surgical procedure other than bilateral tubal ligation. Immunohistochemistry studies support the diagnosis and Ki67 index and p53 expression complements the high-grade morphology. The immunohistochemistry of the tumor is compared with the immunohistochemistry of other reported cases. Conclusion This report contributes to the fund of knowledge of the clinical presentation, morphologic findings, and immunohistochemistry profile pertinent to this rare lesion for better understanding, leading to prompt diagnosis and improved quality of care.