Abstract: Objective To study the diagnostic accuracy of CT and MRI in common adrenal tumors. Methods From January 2018 to December 2020, 60 patients suspected of adrenal tumors were studied in Dongming County Hospital of Traditional Chinese Medicine. CT and MRI were performed, and the diagnosis results of the two methods were compared with the results of surgical and pathological examination as the gold standard. Results A total of 58 patients were diagnosed as adrenal tumors, 45 as benign tumors and 13 as malignant tumors. The detection rate and coincidence rate of MRI were higher than that of CT, the difference was statistically significant (P<0.05). The accuracy of localization diagnosis of benign and malignant adrenal tumors by CT was higher than that by MRI, and the accuracy of qualitative diagnosis of benign adrenal tumors by MRI was higher than that by CT, the difference was statistically significant (P<0.05); The specificity and accuracy of MRI were higher than that of CT, the difference was statistically significant (P<0.05). Conclusion Compared with CT examination, MRI examination has a higher detection rate of pathological types of adrenal tumors. In the localization and qualitative diagnosis of benign and malignant adrenal tumors, CT examination and MRI examination have their own advantages and disadvantages. In clinical practice, we should choose the examination methods reasonably, or combine the two examination methods, and then make qualitative diagnosis by MRI after CT localization diagnosis, so as to improve the diagnostic accuracy.

Key words: adrenal gland, tumor, CT, MRI, diagnose