[Diagnosis of a colonic lipoma with computer tomography]

This report describes the case history of a woman with a large submucosal tumor in the ascending colon detected by barium enema radiography. Computed tomography (CT) identified the tumor as a submucosal lipoma characterised by its homogeneous fat-equivalent density with a CT number of -95 HU. This case proves that CT can be a definite diagnostic modality for differentiation between gastrointestinal lipomas and other solid or cystic tumors.