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Mucinous cystadenocarcinoma in combination with hemangiosarcoma in the ovary

The ovary is the sixth most frequent site of cancer in women in Denmark with an incidence of approximately 600 cases per year. Carcinomas predominate whereas sarcomas are rare. We describe a case of the combination mucinous cystadenocarcinoma and hemangiosarcoma in a 37-year old woman, who had a right-sited oophorectomy because of a cyst. Clinically there was no suspicion of malignancy. The macro- and microscopic findings are described as well as the immunohisto-chemical stainings performed to confirm the diagnosis. The case shows the importance of careful sampling at the macroscopic examination, especially from areas with a striking appearance.