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.
Department of Colorectal Surgery, Singapore General Hospital, Outram Road, Singapore 169608.
B S
BS
Ooi
F
F
Seow-Choen
D004404:Dysentery, Amebic / Q000175:diagnosis*; D016145:Endoscopy, Digestive System; D006801:Humans; D008297:Male; D008875:Middle Aged; D012004:Rectal Neoplasms / Q000175:diagnosis* / Q000473:pathology