MALIGNANT PAROTID TUMORS - CLINICAL USE OF MR IMAGING AND HISTOLOGIC CORRELATION
MALIGNANT PAROTID TUMORS - CLINICAL USE OF MR IMAGING AND HISTOLOGIC CORRELATION
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DOI：
10.1148/radiology.185.3.1438746
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发表时间：
1992-12-01
期刊：
影响因子：
19.7
通讯作者：
THIJN, CJP
中科院分区：
文献类型：
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作者：
FRELING, NJM;MOLENAAR, WM;THIJN, CJP
对116例临床怀疑腮腺肿块病变的患者进行了磁共振（MR）成像。良性病变86例。对30例发现恶性肿瘤的患者进行了进一步评估。为了确定哪些特征是腮腺恶性肿瘤的特征，将腮腺恶性病变的自旋回波T1和T2加权像与良性病变进行比较。在我们的系列中，肿瘤边缘、均匀性或信号强度不是正确预测良性或恶性疾病的鉴别因素。仅在恶性肿瘤中观察到浸润到深部结构（例如咽旁间隙、肌肉和骨）。在恶性肿瘤和炎症性疾病中均观察到皮下脂肪浸润。恶性肿瘤的MRI表现与肿瘤分级无明显相关性。磁共振成像是有用的描绘恶性肿瘤，但在正确预测腮腺肿块病变的组织学性质不可靠。
Magnetic resonance (MR) imaging was performed in 116 patients in whom a parotid mass lesion was clinically suspected. Eighty-six patients had benign disease. The 30 patients in whom a malignant tumor was found were further evaluated. To determine which features are characteristic of malignant parotid tumors, spin-echo T1- and T2-weighted images of malignant lesions in the parotid gland were compared with those of benign disease. In our series, tumor margins, homogeneity, or signal intensity were not discriminative factors to correctly predict benign or malignant disease. Infiltration into deep structures (eg, the parapharyngeal space, muscles, and bone) was observed only in malignant tumors. Infiltration into subcutaneous fat was noticed in malignant as well as in inflammatory disease. No statistically significant correlation was found between tumor grade and MR imaging features in malignant disease. MR imaging is useful in delineating malignant tumors but is unreliable in correctly predicting the histologic nature of a mass lesion in the parotid gland.