Molecular analysis of a rare case of low-grade primary peritoneal serous carcinoma in a male

Incidentally Diagnosed Low-Grade Primary Peritoneal Serous Carcinoma Within the Umbilical Hernia Sac in a Male: A Report of an Extremely Rare Case and Review of the Literature

Primary peritoneal serous carcinoma (PPSC) is a rare tumor that develops in the peritoneum. PPSC originates from embryonic nests of Müllerian cells in the peritoneum, which are also present in the epithelium of the ovary. This similarity explains the histopathological resemblance between PPSC and low-grade serous ovarian carcinoma. While PPSC primarily affects women, it is an extremely rare occurrence in males, and it is believed that the significant difference in diagnosis rates between males and females is due to the inhibition of Müllerian system growth by substances produced by male Sertoli cells. These substances are present at higher levels in males, which may prevent the development of Müllerian system-derived tumors in men. We describe a 65-year-old male patient who presented for elective bariatric surgery and umbilical hernia repair, and an incidental finding of low-grade PPSC was made based on hernia sac pathology. The patient underwent further management, including tumor debulking and hyperthermic intraperitoneal chemotherapy (HIPEC), with positive outcomes. Long-term follow-up and oral letrozole treatment are planned.

Primary peritoneal high-grade serous carcinoma in a man: A case report

Introduction and importance

Primary peritoneal serous carcinomas (PPSC) are exceedingly rare in male patients. Only a few cases were reported in the medical literature, it's diagnosis is difficult before surgery.

Case presentation

In this article, we describe the case of a patient who presented a high-grade primary peritoneal carcinoma, the diagnosis was suspected radiologically following an abdominopelvic computed tomography (CT).the patient underwent exploratory laparoscopic surgery with biopsy of several peritoneal nodules. Pathologic analysis of specimen confirmed the diagnosis of Primary peritoneal serous carcinomas. The patient died one month after his diagnosis while undergoing chemotherapy and palliative care.

Clinical discussion

PPSC is an inoperable malignancy, histology staining confirms the diagnosis, the chemotherapy and palliative care are the only offered treatment. The evolution of the disease is very dark with a poor prognosis.

Conclusion

We highlight the important of testicular examination to predict apparition of PPSC in the future.