Single-port robotic resection of gliomatosis peritonei following immature ovarian teratoma in an adolescent: A case report.

BACKGROUND: Gliomatosis peritonei (GP) is a rare benign condition characterized by dissemination of mature glial tissue within the peritoneal cavity, most commonly associated with immature ovarian teratoma (IOT). Its radiological appearance may closely mimic malignant recurrence or growing teratoma syndrome, posing significant diagnostic and therapeutic challenges, particularly in pediatric and adolescent patients.Case:We report the case of a 12-year-old girl with a history of IOT who developed multiple peritoneal nodules after initial surgery and chemotherapy. Imaging findings raised concern for disease recurrence, while serum tumor markers remained within normal ranges. Single-port robotic-assisted surgical exploration and resection of all visible peritoneal lesions were performed. Histopathological examination confirmed mature astrocytic glial tissue with low proliferative activity, establishing the diagnosis of GP. The postoperative course was uneventful, with rapid recovery, minimal pain, and satisfactory wound healing. No recurrence was observed during 12 months of follow-up.

CONCLUSION: This case highlights the importance of histopathological confirmation in distinguishing GP from malignant recurrence after IOT. Single-port robotic surgery may represent a feasible minimally invasive option for the management of multifocal GP in adolescents, offering precise resection with favorable postoperative recovery.