[Pseudosarcoidotic ganglionic mediastinal tuberculosis].

Introduction: The aetiological inquiry in the presence of systemic granulomatosis should consider some uncommon forms of tuberculosis infections. For instance, Poncet's tuberculous rheumatism is a rare entity subject to controversy.

Case Report: A 32-year-old man presenting febrile polyarthritis associated with spontaneously vanishing erythematous papular skin rash.