Laparoscopic excision of a mesenteric cyst diagnosed preoperatively as an ovarian cyst.

Mesenteric cysts are uncommon benign, abdominal tumors usually managed by general surgeons. We encountered an unusual mesenteric cyst that was diagnosed preoperatively as an ovarian cyst. It was located in the pelvic cavity inside the mesoappendix. We excised the cyst and adjacent vermiform appendix by laparoscopy. Histopathologic examination revealed mucinous cystadenoma. To the best of our knowledge, this is the first reported case of a mesenteric cyst removed by a gynecologic laparoscopist.