Ovarian Torsion Unveiling a Neoplasm: A Case of Granulosa Cell Tumor.

Background: Granulosa cell tumors (GCTs) are rare sex cord–stromal ovarian neoplasms, comprising 2–5% of all ovarian tumors. They usually exhibit a slow-growing behavior but can occasionally present with acute complications such as torsion or rupture, requiring emergent surgical intervention. We report a 26-year-old Case Presentation: unmarried nulligravida who presented with acute abdominal pain, nausea, and vomiting. Imaging 1 week prior to the emergency presentation revealed a 9×7×6 cm predominantly solid right adnexal mass with normal tumor markers. The patient was initially planned for laparoscopic cystectomy, but sudden onset of symptoms necessitated an emergency exploratory laparotomy that revealed torsion and rupture of the ovarian mass with hemoperitoneum. A right salpingooophorectomy and omental biopsy were performed. Histopathological analysis confirmed adult-type granulosa cell tumor with omental involvement. The tumor was staged as FIGO IIIA2. The postoperative course was uneventful, and the patient was referred for adjuvant oncological management. This case underscores the need for early Conclusion: surgical evaluation in adnexal masses presenting acutely and highlights the role of histopathological analysis in the diagnosis and staging of granulosa cell tumors. Lifelong follow-up is essential due to the risk of late recurrence.