Aphthous Ulcer
Apthous ulcer of Crohn’s disease. Note: normal surrounding mucosa. (Courtesy of Dr. G. Kandel)
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Apthous ulcer of Crohn’s disease. Note: normal surrounding mucosa. (Courtesy of Dr. G. Kandel)
Pseudomembranous Colitis (Courtesy of Dr. G. Kandel)
Ulcerative Colitis
Diffuse, erythema, friability and loss of normal vascular pattern. (Courtesy of Dr. G. Kandel)
Internal Hemorrhoid
View by retroflexing colonscope. (Courtesy of Dr. G. Kandel)
(Courtesy of Dr. G. Kandel)
Columnar epithelium extends up into normal squamous epithelium in one quadrant. (Courtesy of Dr. G. Kandel)
Removal with snare. (Courtesy of Dr. G. Kandel)