This article is about a lesion of cancer naso-sinusal on the CT scan. Ojective : The description a lesion on the CT scan and comparesion with the clinical of the cancer naso-sinusal. Materials and Methods: Case study of 32 patients operateds at Hospital ENT Central (2011-2012). Diagnostic clinical, CT scan, histopathologies of HE, PAS and immuno-histopathologic. Results and discussions: the lesion of unisinusal 46.8 percent, destory the wall naso-sinusal 53.1 percent, destory the maxillilary sinus 37.5 percent
destory the floor of the eye 31.2 percent
destory the floor of the ethmoidal sinus 15.6 percent and destory the wall of the eye 21.8 percent. Conclusion Hyper-dence 51.3 percent, cloudy 68.7 percent.