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Cutaneous tuberculosis is caused by Mycobacterium tuberculosis with varied clinical features depending on the dissemination route and host immune status. Scrofuloderma is a type of cutaneous tuberculosis that often occurs in locations where there is an infected lymph node or bone underneath, whereas tuberculous chancre often appears in sites that are prone to trauma. Although several cases have been reported, the coexistence of more than one type of cutaneous tuberculosis is very rare. We report a 21-year-old immunocompetent male with a chronic nonhealing lesion on the left tibia followed by bilateral purulent ulcers on the submandibular area. Acid-fast bacilli examination was positive for M. tuberculosis, and the patient was diagnosed with tuberculous chancre and scrofuloderma, respectively. This case showed the importance of high clinical suspicion of cutaneous tuberculosis and the possibility of the coexistence of more than one type of cutaneous tuberculosis in order to avoid misdiagnosis and delay in treatment.

A 14-year-old boy was gored by a bull during festival celebrations. The horn of the bull caused a wound on his left hand and after 3 months it was a accompanied by an ulcerated nodule on the left upper arm and an axillary adenopathy. The tuberculin test was positive and a culture of the aspiration biopsy specimen of the axillary lymph node yielded Mycombacterium bovis . (J Am Acad Dermatol 2000;43:535–7.)

Mycobacterium bovis is an unusual cause of tuberculosis. A fatal case of disseminated tuberculosis due to M. bovis with a chancre as a primary portal of entry and lymph node, pulmonary and renal involvement is presented in a patient with AIDS.

A case of primary tuberculous chancre of the vulva is reported. Although a tuberculous infection in an immunocompromised patient is not uncommon, this is the first report of a primary tuberculous infection on the external genitalia in such a patient. The source of infection in this patient could not be determined.