title: Nonhealing perianal ulcers.
authors.affiliation: Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan.
authors.forename: Tien-Yi
authors.initials: TY
authors.lastname: Tzung
authors.forename: Jen-Chin
authors.initials: JC
authors.lastname: Wu
mesh_terms: D000368:Aged; D001004:Anus Diseases / Q000175:diagnosis / Q000473:pathology* / Q000628:therapy; D003937:Diagnosis, Differential; D004803:Eosinophilic Granuloma / Q000175:diagnosis / Q000473:pathology* / Q000628:therapy; D005401:Fissure in Ano / Q000473:pathology; D006801:Humans; D008297:Male