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[Computerized tomography findings score in the differentiation of adrenal tumors in patients with extra-adrenal
H Gufler1, C H Buitrago-Tellez, J Laubenberger
1Abteilung Röntgendiagnostik der Radiologischen Klinik, Albert-Ludwigs-Universität, Freiburg.
Purpose:
In a retrospective study the diagnostic accuracy of computed tomography for the differentiation of benign from malignant adrenal masses in patients with extra-adrenal malignancies was evaluated. For this differentiation a new score system was tested.
Patients And Methods:
Size, density, structure, and borders of adrenal masses in 60 patients with extra-adrenal tumours were analysed and scored. The single criteria and the total score values were correlated with the final diagnosis achieved either by histology or by follow-up CT examinations.
Results:
Score values above 4 indicated always metastases and score values below 2 were benign lesions. An overlap occurred at score values between 2 and 3 resulting in an overall accuracy of 83.3%.
Conclusion:
Single CT criteria are not reliable enough to differentiate benign from malignant adrenal lesions: better results are achieved by using our scoring system.