Laparoscopic excision of an omental cyst.

An omental cyst is a rare intra-abdominal tumor. The authors describe a case of omental cyst that was diagnosed correctly with abdominal magnetic resonance imaging (MRI) and successfully resected completely by use of minimal-access surgical techniques. A sagittal or coronal MRI view may precisely reveal the tumor position. The authors consider MRI to be very useful in the diagnosis of abdominal cystic masses. Laparoscopic surgical techniques are replacing or complementing open abdominal surgical procedures.