We report a 70 years old mall presenting with malaise, anal pain and p
rogressive defecation difficulty, with a decrease in stool caliber. Th
e patient had no contact or past history of tuberculosis. On physical
examination, there was an ulcerated anal lesion with purulent discharg
e that produced an anal stenosis. The patient had nrl erythrocyte sedi
mentation rate 108 mm/h, Images of active tuberculosis' in both apical
pulmonary lobes and a chronic tuberculous inflammation with caseation
and epithelioid tubercles tuna observed in a biopsy of the anal lesio
n. Treatment with antituberculous drugs Produced a categorical remissi
on of anal lesions and after five months of therapy the patient is wel
l.