Analysis of atypical CT imaging misdiagnosis of adrenal adenoma

LI Sheng; CHEN Feng; LAN Peng-xun

Abstract：Objective By reviewing the CT imaging features of atypical adrenal adenoma ,we analyzed the reason of mis-diagnosis so as to improve the diagnostic accuracy rate .Methods 11 cases of atypical adrenal adenomas with the clinical data ,pathological data were collected in our hospital in recent years .All patients underwent CT plain and three phase en-hanced scanning and combined with the clinic ,data were retrospectively analyzed .Results 2 cases of the high enhanced adrenal adenoma ,8 cases of the largest tumor diameter >4 cm large adenoma and 1 case of bilateral high strengthening ad-enoma were seen in 11 cases of adrenal adenoma .The enhanced CT performance of fast forward and rewind was found in high enhanced adrenal adenoma .2 cases of cystic density and low enhanced and 1 case of intratumoral hemorrhage of non functional big adrenal adenoma were seen in large adenoma cases .5 cases were manifested as CT enhanced findings of fast forward and rewind with eccentric cystic degeneration .Bilateral high strengthening adrenal adenoma was shown in 1 case . Conclusion Careful analysis of CT images in atypical adrenal adenoma ,combining with clinical history ,laboratory exami-nation and M RI scan ,can improve diagnostic rate of atypical adrenal adenoma .