[A case of papulonecrotic tuberculide preceded by pulmonary tuberculosis].

We experienced a rare case of papulonecrotic tuberculide (PT). A twenty-four year old female was referred to our hospital because she had had an eruption for the last for four years. Her chest X-ray revealed no abnormal shadow three years ago when her eruption had already appeared. This time, the skin biopsy and repeated chest X-ray were investigated. These results showed pulmonary tuberculosis accompanied with PT. Both rifampin and isoniazid were administered and apparent improvement was achieved after six months-of treatment. Pt also showed improvement. Her skin involvement was preceded by pulmonary tuberculosis. Nowadays, PT is a rare disease but physicians should be on the alert for this disease as a sign of tuberculosis.