Abstract:Objective To investigate the multi-slice spiral CT (MSCT) features of parotid tumors to
provide clinical references. Methods Retrospective analysis was conducted on the MSCT manifestation
of 23 patients whose diagnosis of parotid tumors were confirmed surgically and pathologically (including
3 cases of mucoepidermoid carcinoma, 11 cases of pleomorphic adenoma, 4 cases of adenolymphoma,
2 cases of lipoma, 2 cases of eosinophilic lymphocytes in the granuloma, 1 case of benign myoepithelial
tumor). Through the CT manifestation tumor distribution, form, density, edge, cystic degeneration or
necrosis, degree of enhancement, cervical lymph node enlargement of 23 cases were studied. Results
Most pathological changes of the parotid gland were unilateral, of which 15 were left and 8 were right.
Benign tumors usually located at the junction of the superficial lobe of parotid glands and the deep lobe of
parotid glands. The shape of benign tumors was round or mass. The boundary was clear, and the density
was uniform and higher than the normal parotid gland tissue. As shown by enhancing scanning, the
calcification was found in the multiple adenomas and the cystic changes were found in the pleomorphic
adenoma. Malignant tumors were usually located in deep lobes and were lobulated. The boundary was
less clear. The density was uneven and more dense than normal parotid gland. Enhanced scan revealed
inhomogeneous enhancement. Malignant parotid tumors were often accompanied by cervical lymph node
enlargement. Conclusion Parotid gland tumors have certain imaging features. MSCT is helpful in the
diagnosis and differential diagnosis and has important clinical diagnostic value.