Choriocarcinoma within the third trimester placenta--a case report.

A small focus of choriocarcinoma has been incidentally found within an otherwise normal, third trimester placenta which was sent to the pathomorphological examination because of the stillbirth of the child at 31st week of gestation. The autopsy of the child was not performed. Macroscopically focus of choriocarcinoma has looked as a small infarct and was indistinguishable from the second lesion, which was microscopically confirmed to be a real infarct. beta-hCG level was increased at the time of delivery, but come back to normal very quickly. There were no metastases in the mother at the time of delivery and the follow-up did not show any evidence of metastatic disease either.