Microcystic stromal tumor resected by laparoscopic surgery

Area of Science:

• Gynecologic Oncology
• Surgical Pathology
• Laparoscopic Surgery

Background:

• Microcystic stromal tumor (MCST) is an exceptionally rare ovarian neoplasm characterized by specific microcystic architectural patterns and stromal tumor immunophenotype.
• Ovarian tumors often require surgical intervention, with laparoscopy being a common minimally invasive approach.

Observation:

• A 26-year-old woman presented with a suspected left ovarian endometrial cyst, measuring 8 cm and containing hemorrhagic fluid.
• Laparoscopic surgery was performed, and initial attempts at cystectomy were converted to a left salpingo-oophorectomy due to intraoperative findings.

Findings:

• Postoperative pathological examination confirmed the diagnosis of microcystic stromal tumor (MCST).
• While MCST is not currently classified as malignant, its association with beta-catenin gene mutations warrants further investigation into its long-term behavior and prognosis.

Implications:

• This case demonstrates the successful laparoscopic management of an incidentally discovered ovarian MCST, a procedure not extensively documented.
• It underscores the importance of intraoperative assessment and adaptability in managing unexpected ovarian pathologies during minimally invasive surgery.
• Further research is needed to understand the long-term implications and potential malignant associations of ovarian MCST.