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Value of Magnetic Resonance Imaging in Diagnosis of Parotid Benign Tumors of Epithelial Origin and Their Pathologic Bases
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- Author:
- No author available
- Journal Title:
- JOURNAL OF MODERN CLINICAL MEDICAL BIOENGINEERING
- Issue:
- 3
- DOI:
- 10.3760/cma.j.issn.1008-634X.2004.03.002
- Key Word:
- 腮腺;肿瘤;磁共振成像;诊断;病理学
Abstract： 目的探讨MRI在腮腺上皮性良性肿瘤定性诊断中的作用.方法收集腮腺上皮性良性肿瘤72例80个病灶的MRI资料,其中70例经手术病理证实,2例活检证实.77个手术切除病灶行病理逐层切片检查并与MRI影像进行对照分析.MRI平扫采用T1WI、T2WI,其中61例共67个病灶同时行平扫和增强扫描.结果超过一半的腺淋巴瘤瘤灶(26个)T2WI表现为低、等信号,所有经过增强的42个腺淋巴瘤均轻度增强;31例混合瘤T2WI表现为高而不均匀信号,经过增强的24例混合瘤均中等或显著强化.结论常见腮腺上皮性良性肿瘤在MRI表现上各有特点,对大多数病例进行定性诊断是可能的.
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