CT增强于腮腺潜在恶性肿瘤鉴别中的应用价值

Diagnostic Value of CT Contrast Scans in Differentiation of Parotid Potential Malignant Tumors

目的分析CT增强检查在腮腺潜在恶性肿瘤的鉴别诊断中应用价值。方法回顾性分析本院经病理证实腮腺多形性腺瘤72例,腺淋巴瘤31例(36个病灶),基底细胞腺瘤15例CT增强后的影像学征象,重点观察病灶内有无“囊变”,“囊变”分布方式,强化特征及强化方式等。结果腮腺多形性腺瘤增强后以持续上升强化为主,且病灶可见“囊变”中心分布为主及散在点片状、结节状明显强化区,腺淋巴瘤增强后以上升-下降式强化为主,病灶内可见“囊变”并以边缘分布为主,肿瘤内实性成分延迟扫描以均匀强化为主,基底细胞腺瘤病灶以明显强化为主,病灶内可见散在裂隙状“囊变”。结论CT增强检查可以进一步为腮腺潜在恶性肿瘤的诊断及鉴别诊断提供依据,提高腮腺潜在恶性肿瘤的诊断准确性。

Objective Analyze the diagnostic value of CT contrast scans in differentiation of parotid potential malignant tumors.Methods 72 cases of pleomorphic adenomas,31 cases(36 lesions included)of Warthin’s tumors and 15 cases of basal cell adenomas were analyzed retrospectively.Focused on the"cystic"areas,distribution of the“cystic”areas,enhancement characteristics and enhancement patterns.Results pleomorphic adenomas are prone to be an ascending enhancement pattern.There are some“cystic”areas with center distributions and patchy or nodular areas of marked enhancement inside the tumors.Warthin’s tumors are more likely to show up-down type enhancement."Cystic"areas show peripheric distributions and the solid components show uniform reinforcement during the delayed phases.Basal cell adenomas’enhancement pattern is up-down or rise-platform.The solid parts also show obvious enhancement and some crack shapes can be seen in the lesions.Conclusion CT contrast scans can further provide basis for the diagnosis and differential diagnosis of parotid potential malignant tumors and can also improve the diagnostic accuracy.