Sinonasal tumors are tumors that occur in the nasal cavity or nasal sinuses these tumors are rare making up only about three percent of tumors in the upper respiratory tract they are twice as common in males than in females inverted papillomas are benign tumors by definition but can cause . Benign sinonasal tumors are relatively uncommon the most common being inverted papilloma hemangioma and osteoma the treatment for most patients with benign tumors of the nose and sinus is complete excision. More than 70 benign and malignant sinonasal tumours and tumour like conditions have been described however sinonasal tumours are rare and sinonasal cancers comprise only 3 of all head and neck cancers and 1 of all malignancies with a peak incidence in the 5th to 7th decades and with a male preponderance. Lymphomas which occur in the sinonasal cavity diagnosis of paranasal sinus and sinonasal malignancy early diagnosis and multimodality therapy is the key to successful treatment of these tumors however because of the location of the tumor they tend to present as symptoms that are shared with the common cold and other ent complaints. Tumors arising in other sinuses are extremely rare additional sites include the frontal sinus the sphenoid sinus primary orbital tumors and the rare skin cancer which invades from the surface of the skin to involve the sinonasal tract base of skull many different types of cancer arise in the sinonasal cavity
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