Giant juvenile granulosa cell tumor torsion: a case report.

This report describes a 17-year-old patient with ovarian granulosa cell tumor torsion, which is rare. The patient presented with lower abdominal pain for 1 day after defecation, accompanied by nausea and vomiting. Gynecological examination revealed a palpable mass of about 150 mm × 130 mm in the uterus. The mass had high surface tension, tight cysts, well-defined borders, and marked tenderness at its pedicle. Gynecological B-ultrasonography showed that the uterus was not compressed, and a mixed echo of about 152 mm × 112 mm was seen in the pelvic cavity. The initial diagnosis was ovarian tumor torsion. After explaining the condition to the patient's family, an emergent open resection of left ovarian tumor was performed. The postoperative pathology report indicated juvenile granulosa cell tumor. The patient's body temperature was normal, and there was no infection or thrombosis after operation.