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doi 10.17992/lbl.2026.03.883

Correspondance: Asdis Kristjansdottir, asdikris@landspitali.is

 

Key words: Tuberculosis, extrapulmonary tuberculosis, perianal, abscess

Perianal tuberculosis is a rare manifestation of tuberculosis. This report describes a healthy 41-year-old man diagnosed with a perianal abscess that required examination and surgical drainage under general anesthesia. The wound healed poorly over the following months, prompting repeat cultures and tissue sampling. Histological diagnosis revealed necrotizing granulomatous inflammation and acid-fast bacilli, indicating mycobacterial infection. Further investigation revealed pulmonary tuberculosis. The patient received a six-month course of anti-tuberculosis medications and recovered fully. The perianal wound healed well following treatment. Tuberculosis is an important differential diagnosis in individuals with a wound or a lesion near the anus or elsewhere that heals slowly or recurs.