Colitis cystica profunda diagnosed by laparoscopic excision: A case report and review of literature

Figure 2 Endoscopic ultrasonography. A: A cystic mass 20 cm from the anal verger in the intrinsic muscular layer, with a size of 23.0 mm × 12.6 mm, clear boundary, regular morphology, protruding into the lumen, with poor internal transmission and heterogeneous echogenicity; B: A cystic mass 18 cm from the anal verger in the submucosal layer, with a size of 21.3 mm × 15.2 mm, clear boundary, regular morphology, protruding into the lumen, with anechoic echogenicity.