• Li-Rong Zhai, Xi-Wen Zhang, Tong Yu, Zhen-De Jiang, Dong-Wei Huang, Yan Jia, and Man-Hua Cui.
• Department of gynecology and Obstetrics.
• Medicine (Baltimore). 2020 Oct 2; 99 (40): e21109.

IntroductionCarcinoid tumor is one of the most frequent neuroendocrine tumors, and the majority of which are usually observed in the lungs and gastrointestinal tract. The prevalence of ovarian carcinoids is merely 0.1% in ovarian neoplasms and 1% in carcinoid tumors. We described 2 rare cases in our hospital of primary ovarian carcinoid (POC), causing carcinoid syndrome (CS) of the diarrhea, constipation, and carcinoid heart disease. Besides, we also reviewed related literatures about its origin, variant, clinical manifestation, diagnosis methods, pathological features, treatment strategies and prognosis from 2009 to 2019.Patient ConcernsCase 1 was a 61-year-old postmenopausal woman and presented with diarrhea, abdominal pain, enlargement, bloating and dizziness. Case 2 was a 49-year-old patient who complained of constipation, abdominal pain, bloating, and headache.DiagnosisBoth patients were diagnosed as primary ovarian carcinoid, insular type.InterventionsTotal abdominal hysterectomy (TAH), bilateral salpingo-oophorectomy (BSO), omentectomy, pelvic lymphadenectomy, and appendectomy without chemotherapy were performed in case 1. Cervix resection, right salpingo-oophorectomy, appendectomy, and pelvic lesion resection with chemotherapy was conducted in case 2.OutcomesBoth patients achieved satisfactory treatment effects. The follow-up period was 18 and 17 months in case 1 and case 2, respectively. Case 1 encountered carcinoid heart disease and received percutaneous transluminal coronary angioplasty (PTCA) postoperatively. Case 2 suffered multiple metastases postoperatively. However, after effective treatment, both patients were in good condition during follow-up duration.ConclusionPOC is an extraordinarily rare disease, and commonly with a satisfactory outcome. TAH+BSO with or without postoperative chemotherapy has been considered as an acceptable treatment strategy for POC patients.

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