Ovarian Remnant Syndrome at the Trochar Site: A Report of a Rare Complication Following Laparoscopic Ovarian Surgery
A 35-year-old woman presented with an abdominal wall mass that was palpable one week prior to her visit. The mass was not painful and did not show a change in size. Her past medical history was remarkable because she had undergone laparoscopic bilateral ovarian cystectomy due to endometriosis 3 years prior to her visit. Physical examination revealed a surgical scar on her left lower abdomen and an index finger tip-sized mass was palpable in the abdominal wall under the scar. It was smooth and movable, and was not tender. The laboratory findings were unremarkable.\nUltrasonography demonstrated an approximately 1.6×0.9 cm-sized hypoechoic mass in the subcutaneous adipose tissue (). An excisional biopsy was performed. The mass was well demarcated from the adjacent soft tissue by a thin fibrous capsule. The cut surface showed a yellow, glistening lobular parenchyma with areas of blood-filled cystic spaces. Histologically, the parenchyma was composed of luteinized granulosa and theca cell layers, suggesting corpus luteum of the ovary (). There was no evidence of endometriosis.\nA review of the operation record of the laparoscopic surgery that was performed 3 years prior showed that the patient had 5.4×4.5×4.0 cm- and 3.2×3.0×1.5 cm-sized endometriotic cysts in bilateral ovaries with an associated dense pelvic adhesion. After a cystectomy, the specimens were fragmented and extracted using forceps through the trochar on her left lower abdomen.\nThe patient was discharged after the abdominal wall mass excision and was healthy with no recurrence of the lesion at a follow-up at 32 months.