The incidence of extrapulmonary tuberculosis has been increasing especially among immunocompromised patients. Mycobacterium tuberculosis skin infection is rare, accounting for 1.5% of all forms of the disease. We present a clinical case of 38 years old woman, Brazilian; with sexual risk behaviours that develops a sudden thoracoabdominal tumefaction of 4 -5 cm. The investigation confirmed a metastatic tuberculous abscess in a patient with acquired immunodeficiency syndrome.