Isoniazid Induced Cutaneous Leukocytoclastic Vasculitis in Extra Pulmonary Tuberculosis (Pott's Spine): A Case Report.

Anti-tuberculosis drugs frequently result in cutaneous adverse reactions but Isoniazid is known to have least toxic potential for cutaneous reactions. We report a rare case of Isoniazid induced cutaneous leucocytoclastic vasculitis. A 64-year-old male was diagnosed to have Pott's spine with multiple vertebral body involvement (D8-12 vertebrae).