Scar Endometrioma: An Uncommon Yet Easily Treated Condition.

Objective: To illustrate and emphasize the need for keeping scar endometrioma in mind in order to facilitate an early diagnosis in cases of a mass detected on the abdominal wall in women who have undergone a cesarean section.

Study Design: Records of 21 patients were reviewed retrospectively. All the patients complained of a mass on the abdominal wall and had undergone cesarean section in the past. Endometrioma was confirmed histopathologically for each patient. Information about the characteristics of the patients are retrieved from the patient records and analyzed.

Results: The average age of patients was 31 years. The average duration before onset of the complaints in the postcesarean section period was 32.9 months, and the average duration of the complaints was 25.3 months. In most cases (62%) the scar endometrioma was located at the right end of the Pfannenstiel incision. The average size of the endometrioma masses was 30 mm. Recurrence was not observed in any of the patients during an average follow-up of 31.3 months after total excision.

Conclusion: Scar endometrioma is a rare disease which can be treated easily. If a mass on a cesarean section scar which becomes sensitive during menstruation is detected in a patient with history of cesarean section, the diagnosis of scar endometrioma should be suspected.