“…The most common malignancies that metastasize to the sinonasal tract are carcinomas of the kidney, bronchus and breast [1,6,9], while only occasionally carcinomas of the endometrium, prostate, liver, bladder, seminomas, neuroblastomas, carcinomas of the thyroid gland, cuta- neous melanomas [10][11][12][13][14]. Metastases to distant organs occur by embolic hematogenous dissemination, including rarely the sinuses, because of low vascularity of their mucosa [15].…”