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Cutaneous tuberculosis with nonreactive PPD skin test: a diagnostic challenge* * Study conducted at a private clinic - Maringá (PR), Brazil.

The authors report a case of cutaneous tuberculosis in a 63-year-old female patient, who had an infiltrated, erythematous-ferruginous plaque of indurated aspect on her right leg and a nonreactive PPD skin test. Diagnosis was made by tissue culture and PCR of skin biopsy material. The treatment was performed with pyrazinamide, rifampicin, isoniazid and ethambutol, with good response.

Mycobacterium tuberculosis; Tuberculosis; Tuberculosis, cutaneous


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