Figure 1: Two sections of the colonoscopic findings of the
patient
The rectal mucosal biopsy revealed features of solitary rectal ulcer
with surface erosion, crypt hyperplasia, ecstatic capillaries, fibrosis,
and extension of smooth muscle fibers in lamina propria with diamond
shape crypts. Although there is ulcer slough and features of ulceration,
there is minimal inflammation in lamina propria. Crypt cells show
regenerative hyperplasia. (Figure 2) These features of
histology and colonoscopy findings were suggestive of polypoid solitary
rectal ulcer.