A case of primary ovarian carcinosarcoma

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Background: Primary ovarian carcinosarcoma is very rare. In addition, there are few reports describing the cytological diagnosis of carcinosarcoma. In this report, we describe the detection of carcinosarcoma through ascitic cytological diagnosis.Case: The patient was an 80-year-old woman, gravida 2, para 2.The chief complaint was vomiting. A sense of abdominal distension, anorexia and emesis developed, and the patient was urgent hospitalized. A large quantity of ascites and a mass measuring about 10cm in diameter were noted on ultrasonography and CT. Respiratory insufficiency was aggravated due to the ascites, and drainage of about 3, 000ml ascites was performed, with simultaneous cytological diagnosis. As for the tumor marker, CA125 showed 49.5U/ml. The other markers were negative. We performed systemic fluid control therapy, but the patient passed away.We diagnosed the disease as a sarcoma from the ascitic cytological findings. The autopsy findings indicated primary carcinosarcoma of the right ovary. Moreover the sarcomatous portion was like a malignant fibrous histiocytoma.Conclusions: We diagnosed the lesion as a carcinosarcoma from the ascitic cytological diagnosis, but the patient died very soon after admission, due to her advanced age and poor general health condition.

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