Summary

We describe a rare case of a young woman with a large cystic adenomyotic lesion that was treated laparoscopically. The patient presented with severe dysmenorrhoea refractory to common analgaesics. She was initially diagnosed with right-sided ovarian endometrioma. MRI revealed a cystic lesion of 4 cm attached to the right uterine wall. Under laparoscopic vision, the uterine lesion was identified on the right portion of the uterine fundus close to the round ligament. Monopolar diathermy was used to dissect the lesion. When the incision reached the cystic cavity, dark-brown content flowed from the cyst. After resection was complete, the surgical wound was closed with two-layer interrupted sutures. The patient made a good recovery and was discharged the following day. Since patients with cystic adenomyosis are young, a minimally invasive procedure such as laparoscopic excision is considered optimal. The exact topography of the lesion is crucial in determining the site of the incision.