腮腺恶性肿瘤(malignant tumor of parotid gland)多是来源于腮腺腺体或是腺管的上皮细胞,以黏液的表皮样癌、恶性混合瘤、腺样囊性癌和腺癌较为常见,占了80%～90%。现在.
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Conclusion CT has significant value in localizing and qualifying diagnosis in parotid diseases, and can promote the accuracy diagnosis in malignant tumor of parotid gland.
结论CT扫描对腮腺区肿块的定位、定性有重要价值，可以提高腮腺区恶性肿瘤的诊断符合率。
Conclusion: The imbalance of MMP-2 and TIMP-2 may be more important in malignant parotid gland tumor, down-expression of TIMP-2 may be an early biomarker of metastasis and invasion of tumor.
结论：在腮腺恶性肿瘤中，MMP 2与TIMP 2之间的平衡失调可能更为重要，TIMP 2表达的下调可作为肿瘤早期转移和浸润的标志之一。
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