The main CT features included (1) Locations: 15 lesions located in the anterior portion of nasal cavitie at single side, and extended posteriorly along the inferior and/or media nasalis concha.

　
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  • CT表現：(l)發(fā)病部位：均為單側發(fā)病，15例發(fā)生于鼻腔前部外側壁，主要累及中下鼻甲，腫塊多沿鼻甲形狀蔓延生長(cháng)，1例腫瘤主要位于鼻后孔；
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