卵巣原発非妊娠性絨毛癌の1例

A case of non-gestational ovarian choriocarcinoma

卵巣原発非妊娠性絨毛癌は非常にまれな腫瘍で，画像所見の報告は少ない。今回，卵巣原発巣や脳転移の画像と病理所見の対比から若干の知見を得られた1例を経験したので報告する。

A 30’s-year-old woman complained of headache and visual disturbance. On CT and MRI, the brain tumor showing marked hemorrhage and ring enhancement was detected and pathologically diagnosed as metastatic choriocarcinoma. On pelvic MRI, the mass of about 40mm showing hemorrhage and poor enhancement was detected in the left ovary. The feeding arteries around the mass and early ovarian venous return were admitted on early arterial phase CT. The findings suggested hypervascular tumor and helped diagnose as ovarian choriocarcinoma.