Laparoscopic Myomectomy – Converting to Laparotomy for a Suspicious Intraoperative Appearance with Subsequent Benign Histology – a Pre- and Intra-Operative Dilemma

BACKGROUND: Although the most common uterine tumour is leiomyoma, the differential diagnoses also include the rarer adenomyoma and leiomyosarcoma. A lack of clear reliable clinical and radiological features makes the triage of uterine masses to the appropriate surgical procedure difficult. In the case of suspicious appearance of a presumed leiomyoma, an open surgical approach is recommended and morcellation is avoided. CASE: We present a case of a woman undergoing an elective laparoscopic myomectomy for a fibroid that appeared benign on ultrasound but had suspicious features intraoperatively. The operation was converted to a laparotomy to avoid the risk of morcellation-related seeding in the event that the histology was malignant. The histology was subsequently a benign exophytic adenomyoma. CONCLUSION: The assessment of the nature of fibroids can be difficult both pre- and intraoperatively, and the need for difficult decision making to convert to open surgery during a laparoscopic myomectomy but with subsequent benign histology should be part of patient counselling.