Unusual liver locations of growing teratoma syndrome in ovarian malignant germ cell tumors

► Growing teratoma syndrome (GTS) with unusual liver locations are described after fertility preserving surgery and chemotherapy treatment for mixed malignant ovarian germ cell tumors (MGCT). ► It's a rare syndrome of mixed malignant ovarian germ cell tumors and in both cases enlarged and growing liver masses appeared during cisplatin–etoposide–bleomicin (BEP) chemotherapy. ► Radiological exams (CT scan and MRI) were suggestive for secondary metastasis and serum markers became negative during chemotherapy.