Primary ovarian choriocarcinoma occurring in a postmenopausal woman: A case report

Figure 1 Transvaginal ultrasound images of the mass. A: One mass of heterogeneous weak echo about 13 cm × 8 cm × 12 cm in size posterior to the uterus was detected; B: Inside the mass and surrounds were richly vascularized on color Doppler examination.

Figure 2 Intraoperative frozen pathological findings show choriocarcinoma with the presence of hemorrhage and necrosis within the tumor tissue and absence of ovarian tissue. Haematoxylin and eosin staining (× 100).

Figure 3 Postoperative microscopic appearance of the mass shows a pure choriocarcinoma with widespread necrosis. Haematoxylin and eosin staining (× 40).