title: Perianal tuberculosis: A case report and review of the literature.
abstract: Tuberculosis (TB) is still a major health problem worldwide. We present a rare case of an immuno-competent patient with perianal TB. A 38-year-old man visited a clinic with pain, swelling, and redness in the perineum. He had been persistently coughing for the past 6 mo. The abscess had formed a fistula to the perianal region, indicating perianal abscess. Mycobacterium tuberculosis was found in sputum and perianal abscess. Surgical drainage was performed, and oral anti-tuberculous drugs were administered for 6 mo. The patient's clinical course was favorable. On review of the literature on 58 cases of perianal TB, we found that the duration of persistent perianal lesion was much longer in patients without active pulmonary TB (APTB) than in those with APTB (66.4 mo vs 8.3 mo; confidence interval, 0.0760-0.9620, P = 0.0380). Thus, in cases of non-healing or recurrent perianal lesions, TB should be considered.
authors.affiliation: Sayaka Tago, Yuji Hirai, Yusuke Ainoda, Takahiro Fujita, Ken Kikuchi, Department of Infectious Diseases, Tokyo Women's Medical University, Shinjuku-ku, Tokyo 162-8666, Japan.
authors.forename: Sayaka
authors.initials: S
authors.lastname: Tago
authors.affiliation: Sayaka Tago, Yuji Hirai, Yusuke Ainoda, Takahiro Fujita, Ken Kikuchi, Department of Infectious Diseases, Tokyo Women's Medical University, Shinjuku-ku, Tokyo 162-8666, Japan.
authors.forename: Yuji
authors.initials: Y
authors.lastname: Hirai
authors.affiliation: Sayaka Tago, Yuji Hirai, Yusuke Ainoda, Takahiro Fujita, Ken Kikuchi, Department of Infectious Diseases, Tokyo Women's Medical University, Shinjuku-ku, Tokyo 162-8666, Japan.
authors.forename: Yusuke
authors.initials: Y
authors.lastname: Ainoda
authors.affiliation: Sayaka Tago, Yuji Hirai, Yusuke Ainoda, Takahiro Fujita, Ken Kikuchi, Department of Infectious Diseases, Tokyo Women's Medical University, Shinjuku-ku, Tokyo 162-8666, Japan.
authors.forename: Takahiro
authors.initials: T
authors.lastname: Fujita
authors.affiliation: Sayaka Tago, Yuji Hirai, Yusuke Ainoda, Takahiro Fujita, Ken Kikuchi, Department of Infectious Diseases, Tokyo Women's Medical University, Shinjuku-ku, Tokyo 162-8666, Japan.
authors.forename: Mikio
authors.initials: M
authors.lastname: Takamori
authors.affiliation: Sayaka Tago, Yuji Hirai, Yusuke Ainoda, Takahiro Fujita, Ken Kikuchi, Department of Infectious Diseases, Tokyo Women's Medical University, Shinjuku-ku, Tokyo 162-8666, Japan.
authors.forename: Ken
authors.initials: K
authors.lastname: Kikuchi
keywords: Abscess; Fistula; Hemorrhoids; Tuberculosis; Ulcer