A Case of Primary Peritoneal Carcinoma \_h(\/PPC\_h) \/Associated with Uterine Myoma Presenting with Acute Respiratory Failure due to Massive Pleural Effusion

Abstract

A 57-year-old woman was transferred to the emergency room for dyspnea. On admission, arterial blood gas showed an oxygen pressure of 46.1 mmHg at room air. Thoraco-abdominal computed tomography (CT) scan showed significant right-sided pleural effusion and giant uterine myoma (GUM). Under the diagnosis of pseudo-Meigs syndrome due to GUM, the patient was admitted for treatment and further detailed examination. This case was corrected as massive pleural effusion due to primary peritoneal carcinoma (PPC) Stage II, based on the laparotomy, total hysterectomy, ascites cell block histology, and the postoperative course. Guideline-directed adjuvant systemic chemotherapy was administered, and alive well in complete remission at 24 months postoperatively.

PPC responds well to systematic chemotherapy, and long-term remission is not uncommon. The diagnosis of stage II PPC is limited by CT imaging alone, and special intraoperative precautions should be taken in cases of GUM coexistence.