Voluminous bilateral malignant ovarian germ cell tumors with carcinomatosis in a child.

Ovarian germ cell tumors (OGCTs) are rare malignancies, predominantly affecting adolescents and young women. We present the case of a 14-year-old girl with a 1-month history of progressive abdominal distension, vomiting, and diffuse abdominal pain. Imaging revealed large bilateral pelvic masses with significant peritoneal effusion and peritoneal carcinomatosis. The diagnosis of a malignant germ cell tumor was confirmed through histological analysis. The patient was treated with 6 cycles of chemotherapy, showing favorable progression. This case highlights the diagnostic challenges and therapeutic considerations in managing OGCTs, emphasizing the importance of early detection and fertility-preserving surgical strategies.