Corangiocarcinoma. A propósito de un caso

Chorangiocarcinoma is a recently described placental tumour showing a vascular proliferation with stromal cells surrounded by an atypical trophoblastic neoplasia. The stromal and vascular proliferation is demonstrated with CD-34 and Vimentin. Atypical pleomorphic trophoblastic cells with frequent mitosis are positive for CK-8-18, pan CK and BCHG. It is difficult to differentiate this carcinoma from a collision tumour of the corangioma-choriocarcinoma type. To date, less than ten cases of this tumour have been reported but follow ups did not reveal any metastases in either mother or child in any case.