La porokératose est une dermatose peu fréquente caractérisée par un trouble de la différenciation épidermique(Truchetet et Cuny, 2017). L'étiopathogénie n'est pas encore entièrement élucidée, mais parait complexe et multifactorielle.
Rhinoscleroma is a chronic indolent granulomatous infection of the nose and the upper respiratory tract caused by Klebsiella rhinoscleromatis; this condition is endemic to many regions of the world including North Africa. We present a case of rhinoscleroma in a 47-year-old man with clinically diagnosed nodule in the nasal cavity. The histopathological examination revealed granulation tissue with plasma cells and Mikulicz's cells. The clinical and morphological picture of the case is a rare opportunity to recall a disease that is often overlooked by dermatologists.
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