Abstract
Tuberculosis and leprosy are chronic mycobacterial infections that elicit granulomatous inflammation. The incidence of co-existence of pulmonary tuberculosis and leprosy has ranged from 2.5%-13.4%.1 Cutaneous tuberculosis is a variant of extrapulmonary tuberculosis and its simultaneous occurrence with leprosy is uncommon. The concomitant presence of leprosy, pulmonary as well as cutaneous tuberculosis is rare.
 We report a case of borderline tuberculoid leprosy, lupus vulgaris and pulmonary tuberculosis in a 45 years male who presented to the dermatology outpatient department with three morphologically distinct skin lesions over the posterior aspect of right leg. Ours is presumably the first case reported from Nepal, a country where both of these mycobacterial infections are endemic.
Highlights
Tuberculosis and leprosy are chronic mycobacterial infections that elicit granulomatous inflammation
The reported incidence of co-existence of pulmonary tuberculosis and leprosy has ranged from 2.5%-13.4% in endemic regions.[2,3,4]
Cutaneous tuberculosis is a variant of extrapulmonary tuberculosis and its simultaneous occurrence with leprosy is rare.[5]
Summary
Borderline tuberculoid leprosy, lupus vulgaris and pulmonary tuberculosis: A rare association. Tuberculosis and leprosy are chronic mycobacterial infections that elicit granulomatous inflammation. The incidence of co-existence of pulmonary tuberculosis and leprosy has ranged from 2.5%-13.4 percent. Cutaneous tuberculosis is a variant of extrapulmonary tuberculosis and its simultaneous occurrence with leprosy is uncommon. The concomitant presence of leprosy, pulmonary as well as cutaneous tuberculosis is rare. We report a case of borderline tuberculoid leprosy, lupus vulgaris and pulmonary tuberculosis in a 45 years male who presented to the dermatology outpatient department with three morphologically distinct skin lesions over the posterior aspect of right leg. Ours is presumably the first case reported from Nepal, a country where both of these mycobacterial infections are endemic. Reveived : July 22nd 2018 ; Accepted : February 15th 2019; Published : March 29th 2019.
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