Papulonecrotic tuberculid and Poncet disease: A case of multisystem delayed-type hypersensitivity in a patient with Mycobacterium tuberculosis infection

Résumé fourni par la source

It is well known that the clinical manifestations of Mycobacterium tuberculosis (TB) are as much a function of host immune conditions as of direct infection by the organism. In rare cases, patients will have localized immune phenomena without laboratory isolation of the organism. Examples of such phenomena include tuberculids and Poncet disease. Tuberculids represent a cutaneous immune reaction in patients with strong cell-mediated immunity against M tuberculosis.1 Poncet disease is an immune-mediated oligoarthritis associated with TB.

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