目的 探讨大涎腺血管瘤的MRI特点,以提高对该病MRI表现的认识,减少误诊率.方法 收集15例经病理检查证实的大涎腺区血管瘤,分析其在MRI上的形态、信号、强化等情况的特点.结果 15例病例中,14例进行MRI平扫+增强,1例仅进行平扫.7例位于腮腺区,6例位于舌下腺区,2例位于下颌下腺区;15例均为良性;瘤体直径范围1.0 ~6.0cm,平均(2.78±0.98)cm;形态规则3例,不规则12例;平扫信号均匀1例,为囊性病变,不均匀14例;增强后强化13例(其中明显强化7例,轻中度强化2例,分隔状强化2例,渐进性强化2例),不强化1例.结论 大涎腺区血管瘤MRI表现具有一定的特征性,正确认识其MRI表现特点,可以降低误诊率.%Objective To investigate the MRI features of the hemangioma of the salivary gland and improve the diagnosis level. Methods MRI features of fifteen cases of hemangiomas of the salivary glands were retrospectively analyzed including size,signal intensity,enhancement. Results Fourteen patients received both plain and enhanced MRI scans while another one patient only received plain MRI scan. There were 7 cases of hemangioma in the parotid gland,6 cases in the sublingual gland and 2 cases in the submandibular gland. The mean size was 2.78±0.98cm (1.0cm~6.0cm). The shape was regular in 3 cases and irregular in 12 cases. The mass signal was homogeneous and cystic in one case and inhomogeneous in 14 cases. There were different degrees of enhancement in 13 cases and no enhancement in one case. Conclusion Hemangioma of the salivary gland has MRI characteristics which can lead to correct diagnosis.
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