case_images: PMC5422721_01
case_images: Peduculated lesion in the ascending colon.
case_images: crg-0011-0178-g01.jpg
case_images: PMC5422721_01_crg-0011-0178-g01.jpg
case_images: F1
case_images: The patient underwent repeat colonoscopy, which revealed a 50-mm polyp (Fig. 1) in the ascending colon.
case_images: Gross morphology of the endoscopically resected lesion.
case_images: crg-0011-0178-g02.jpg
case_images: PMC5422721_01_crg-0011-0178-g02.jpg
case_images: F2
case_images: It was successfully removed using an endoloop placement and hot snare polypectomy (Fig. 2).
case_images: Cystic lymphangioma of the colon. Hematoxylin and eosin staining under high magnification showing dilated channels lined by endothelial cells containing lymph nodes. The stroma contains fibrocollagenous tissue and scant cellular infiltrate (x100 magnification).
case_images: crg-0011-0178-g03.jpg
case_images: PMC5422721_01_crg-0011-0178-g03.jpg
case_images: F3
case_images: Histopathological examination showed polypoid colonic tissue with markedly dilated spaces, lined by a single layer of thin endothelial cells predominantly in the submucosa with overlying normal colonic mucosa, consistent with cystic lymphangioma of the colon (Fig. 3).