Tuberculous gluteal abscess coexisting with scrofuloderma and tubercular lymphadenitis

A 23-year-old man presented with diffuse swelling of the left buttock with overlying skin lesions associated with seropurulent discharge. There was no past history of tuberculosis. Routine investigations were normal and smears of the discharge for bacteria, fungi, and AFB were negative. However, culture of skin biopsy showed Mycobacterium tuberculosis. Skin and lymph node biopsy showed granulomatous inflammation suggestive of tuberculosis. Administration of antitubucular therapy led to complete resolution of the lesions within 12 months.