According to the international literature the sinonasal tumors are rare lesions, they present only 3% of the malignant head and neck tumors. The majority of these tumors arise from the maxilary sinuses and ethmoid cells, in extremely rare cases we can find the frontal or sphenoid sinus involvement. It occurs more often in men. Diagnosing a sinonasal tumor is done in three basic steps: detailed medical history and clinical examination including nasal endoscopy, medical imaging, tumor biopsy. We examined in a retrospective study the incidence of the nasal and paranasal sinus tumors in 132 patient of the ENT Clinic of Targu Mures between 2008–2014. Histopathology established that 42% of the tumors were malign, most of them presented by squamos cell carcinoma. Benign tumors were mostly of epithelial and mesenchymal origin. The prognosis depends largely on histopathology, tumor location and the extention of it. Treatment planning is definitely requires an interdisciplinary team working together including ENT specialist, pathologist, oncologist and radiologist.
Keywords: sinonasal tumors, diagnosing imaging, squamos cell carcinoma.