title: Anal cancer masked by benign lesions.
abstract: Three cases of anal cancer, masked by benign lesions are reported. Local resection was performed, in all cases, and complementary radiotherapy, in two. Postoperative follow-up did not show cancer recurrence.
mesh_terms: D000368:Aged; D001005:Anus Neoplasms / Q000175:diagnosis*; D002294:Carcinoma, Squamous Cell / Q000175:diagnosis*; D003937:Diagnosis, Differential; D005260:Female; D005401:Fissure in Ano / Q000175:diagnosis; D006484:Hemorrhoids / Q000175:diagnosis; D006801:Humans; D008297:Male; D008875:Middle Aged; D012002:Rectal Diseases / Q000175:diagnosis*; D012003:Rectal Fistula / Q000175:diagnosis