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[目的]探讨腮腺导管癌(SDC)的临床病理及CT表现,以提高对这种少见病变的认识。[方法]回顾性分析经手术病理证实的16例SDC患者的临床病理及CT资料。[结果]16例患者均为单发肿瘤,5例位于腮腺浅叶,8例位于腮腺深叶,3例跨腮腺深、浅两叶。肿瘤最大径1.3~6.5 cm,平均(3.1±0.4)cm,病灶呈边缘清晰、光整的类圆形或椭圆形肿块5例;呈边缘不光整、边界不清的不规则分叶状肿块11例,密度均匀4例,不均匀12例(75%),CT平扫病灶呈低密度11例,等密度5例;病灶内见钙化者7例;增强后病灶呈明显强化14例(87.5%),中度强化2例。伴颈部淋巴结肿大者10例。[结论]老年男性患者、腮腺深叶、侵袭性生长,沙砾样钙化、明显强化的肿块及伴有明显强化的颈部肿大淋巴结时,结合临床病史要考虑腮腺导管癌的可能。CT检查可以准确显示肿瘤累及的范围。
[Objective] To investigate the clinicopathological and CT findings of parotid duct carcinoma (SDC) in order to improve the understanding of this rare lesion. [Methods] The clinical pathology and CT data of 16 SDC patients confirmed by surgery and pathology were retrospectively analyzed. [Results] All the 16 patients were single tumor, 5 were located in the parotid gland, 8 were located in the parotid deep leaves, 3 were parotid gland deep and 2 lobes. The largest diameter of tumor ranged from 1.3 cm to 6.5 cm, with an average of (3.1 ± 0.4) cm. The lesions were clear and smooth with 5 round or oval-shaped tumors. The irregular lobulated tumors with irregular edges and unclear boundaries Among them, there were 4 cases with uniform density and 12 cases with nonuniformity (75%). CT scan showed low density in 11 cases and equal density in 5 cases. Seven cases showed intracranial calcification in lesions, and 14 cases (87.5% ), Moderate enhancement in 2 cases. With cervical lymph node enlargement in 10 cases. [Conclusion] The elderly patients with parotid gland, invasive growth, gravel calcification, obviously enhanced mass and enlarged neck lymph nodes with obvious enhancement should consider the possibility of parotid ductal carcinoma in combination with clinical history. CT examination can accurately show the extent of tumor involvement.