[Tumor of the nasal cavity unusual in our region. Apropos of a case of rhinosporidiosis].

Rhinosporidiosis is an ailment of the mucous membranes provoked by a microorganism described by Seeber in 1900. It is found in Africa, South America, India, Ceylan, Phillipines and Iran. Rhinosporidium Seeberi provokes the appearance of sessile polyps, friable on the mucous membranes. The nasal mucous membrane is affected in 72% of the cases. The symptoms in otorhinolaryngology are in most cases mucous or mucopurulent rhinorrhea, chronic epistaxis and a progressive nasal obstruction. The etiologic diagnosis is based on clinic, on the examination of rhinorrhea and especially on histopathological examination. In case of lesion at nasopharynx level rhinosporidiosis must be differentiated from inflammatory or parasitic lesions, from embryonic or malignant tumour. Prognosis is generally favourable, the treatment is mainly surgical.