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We report a 26-year-old housemaid whose partner was an intravenous drug abuser with undiagnosed pulmonary tuberculosis. The patient presented with a painless chin ulcer with an elevated irregular border and a firm, nontender submandibular adenopathy. The lesion had been present for 2 months and did not respond to antibiotic therapy. The tuberculin test was positive, and a biopsy and Löwenstein culture confirmed the diagnosis of cutaneous chancre. The patient was treated with rifampicin, isoniazid and pyrazinamide and, after 6 months of treatment, she developed scrofuloderma which had to be surgically removed. After 1 year of follow-up, the lesions had totally cleared.

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