CT和MRI对口腔和口咽部病变的诊断价值

目的：探讨CT和MRI对口腔及口咽部病变的诊断价值。方法：回顾性分析63例经病理及细胞学证实的口腔口咽部病变的CT、MRI资料，其中恶性肿瘤40例，良性肿瘤18例，感染性病变5例。结果：40例恶性肿瘤中，CT检查24例，MRI检查16例，除各有一例浅表型溃疡未能显示外，其余病灶及范围均较清晰显示，两者的区别在于MRI显示肿瘤侵犯邻近结构及深部组织方面优于CT；两者在显示良性病变的大小方面与手术结果相同。结论：CT及MRI对口腔口咽部病变的诊断有重要价值，MRI稍优于CT。

CT and MRI diagnosis of oral and oropharyngeal diseases

Objective:To evaluate the diagnostic value of CT and MRI for oral and oropharyngeal diseases.Methods:The CT and MRI findings of 63 oral and oropharyngeal diseases proved by pathology and biopsy,were analyzed retrospectively,which included malignant tumor(n=40), benign tumor (n=18) and inflammatory lesion (n=5).Results:Among 40 cases with malignant tumor,24 cases with CT scans and 16 ones with MR imaging,except one case with superficial ulcer not detected on CT and MRI,were demonstrated clearly the size,shape and site of the lesion.But MRI was superior to CT in displaying the deeper tissue and invasion of adjacent seructures. In benign cases, both CT and MRI showed well the size of the lesion and the detected results agreed with the surgical findings.Conclusion:CT and MRI play an important role in the diagnosis of oral and oropharyngeal diseases.MRI is slightly superior to CT.