涎腺肿瘤好发于腮腺，术前明确腮腺肿块的良恶性对制订合理的手术方案至关重要。为此，各种术前诊断手段相继应用于临床；其中，影像学诊断应用较多，发展较快，包括腮腺造影、核素显像、超声、ＣＴ、ＳＣＴ和ＭＲＩ等。这些诊断各有特点，综合诊断能提高诊断率［１］。然... Parotid gland tumors occur in the parotid glands. It is important to establish a reasonable surgical plan for the benign and malignant masses of the parotid glands before surgery. To this end, various preoperative diagnostic tools have been applied to the clinic one after another; among them, imaging diagnostics are used more often and develop rapidly, including parotid angiography, radionuclide imaging, ultrasound, CT, SCT, and MRI. These diagnoses have their own characteristics, comprehensive diagnosis can improve the diagnosis rate [1]. Of course...