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To the Editor.—
Because tuberculosis of the skin in general is rare, especially primary cutaneous tuberculosis, the following case is presented.
Report of a Case
A 13-year-old white girl sustained trauma to the right foot while wading in a Gulf Coast beach in August 1970. A small nodule with mild scaling developed at the periphery on the foot at the site of the trauma, which persisted despite antibiotics and local therapy by her home physician. A culture was taken from the foot on Nov 16, 1970, and it revealed Micobacterium Tuberculosis variant hominis, in early January 1971. This was verified by the inoculation of a guinea pig. When I first saw the patient in November 1970, she had an inguinal lymph node which drained caseous material about three weeks later. The cultures from this material were negative. Mantoux test was reported positive (2.5-cm diameter), and had been previously reported negative
London ID. Primary Cutaneous Inoculation Tuberculosis. Arch Dermatol. 1972;106(2):264. doi:10.1001/archderm.1972.01620110088027