Colonic Endometriosis Mimicking Colon Cancer on a Virtual Colonoscopy Study: A Potential Pitfall in Diagnosis

Figure 1

(a) Axial image from virtual colonoscopy demonstrates sigmoid mass (arrows)

(b) Coronal multiplanar reconstruction demonstrates the mass (short arrows) and its relationship to the bladder (long arrow)

(c) Endoluminal fly through view shows marked narrowing of the sigmoid lumen (arrow) as well as the lobular mass (*)