Sarcomatoid carcinoma is rarely diagnosed as gallbladder cancer. Its aggressive nature, due to the characteristics of both sarcoma and carcinoma, results in a poor prognosis. We report a case of gallbladder sarcomatoid carcinoma in an 82-year-old male who was referred to our hospital for evaluation of gallbladder cancer observed on abdominopelvic computed tomography. The characteristics of the cancer were not confirmed after several imaging modalities. The surgically resected tumor was positive for both cytokeratin and vimentin as revealed via immunohistochemical staining, and a sarcomatoid carcinoma was finally diagnosed. The role of chemotherapy has not yet been identified. Therefore, radiation therapy is planned to reduce the risk of recurrence.

융모막암은 임신과 연관되어 융모막조직이 비정상적으로 성장하는 종양으로 난소, 고환, 자궁 등 생식기관에 주로 발현 되며 주변장기로의 침범이나 원격전이를 잘하는 특징이 있다. 융모막암이 생식기관이 아닌 장기에서 발생하는 경우는 매우 드물며 대부분 나쁜 예후를 보인다. 저자들은 중년 여성에서 급성 췌장염과 뇌출혈로 발현되고 다발 장기전이를 동반한 췌장 융모막암 1예를 경험하였기에 문헌고찰과 함께 보고하는 바이다.