Endoscopic view of rectal amebiasis mimicking a carcinoma.
We report the case of a 45-year-old man with rectal amebiasis, presenting with rectal bleeding and chronic diarrhea, confirmed on rectal biopsy. The endoscopic view was highly suggestive of a carcinoma and caused confusion about its etiology. The striking difference in the endoscopic view before and after medical therapy of the tumor-like lesion was remarkable. This case illustrates the importance of an accurate histologic diagnosis before definitive treatment and highlights the mimicry of rectal carcinoma by rectal amebiasis on endoscopy.
Ooi
B S
BS
Department of Colorectal Surgery, Singapore General Hospital, Outram Road, Singapore 169608.
Seow-Choen
F
F
D004404:Dysentery, Amebic / Q000175:diagnosis*; D016145:Endoscopy, Digestive System; D006801:Humans; D008297:Male; D008875:Middle Aged; D012004:Rectal Neoplasms / Q000175:diagnosis* / Q000473:pathology