Rhinitis caseosa in Nigeria.

13 cases or rhinitis caseosa in Nigerians are presented. A review of the literature was made to highlight the historical background and the aetiological factors responsible for the formation of the characteristic foul, malodorous, cheese-like mass of rhinitis caseosa. Even thought the clinical features of this unusual malady are unique, it has to be differentiated from carcinoma of the nose, ethmoids and maxillary antrum. The prognosis is excellent if treatment is undertaken early.