Simultaneous Occurrence of Papulonecrotic Tuberculid and Erythema Induratum in a Patient with Pulmonary Tuberculosis

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Abstract

Although papulonecrotic tuberculid is an uncommon cutaneous manifestation of tuberculosis (TB) associated withMycobacterium tuberculosisinfection, the simultaneous occurrence of papulonecrotic tuberculid and erythema induratum is even rarer. Papulonecrotic tuberculid occurs predominantly in young adults and is characterized by eruptions of necrotizing papules that heal with varioliform scars. Histopathologic findings include wedge-shaped necrosis of the dermis, poorly formed granulomatous infiltration, and vasculitis. Stainings and culture for acid-fast bacilli from skin biopsies are usually negative forM. tuberculosis, although the eruptions resolve with antitubercular therapy. Few patients with papulonecrotic tuberculid, especially with concurrent occurrence of erythema induratum, have been reported in the English literature. Here we report a case of a 12-year-old girl with simultaneous occurrence of papulonecrotic tuberculid and erythema induratum accompanying pulmonary TB.

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