Abstract
Salivary duct carcinoma（SDC） is an uncommon malignant tumor, which occurs rarely in the inferior turbinate. This study present a rare case of a 75-year-old man with right-sided nasal obstruction and rhinorrhagia. The patient elected to have a local excision of the lesion. Histopathology and immunohistochemistry confirmed sinonasal SDC. The patient gave up further treatment. SDC characterized by aggressive behavior and poor prognosis, it is a extremely rare but important differential to consider in patients with unilateral nasal mass.