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[Importance of computed tomography in the diagnosis and differential diagnosis of primary adrenal tumors].

In the present study, 29 patients with primary adrenal tumours and one with an extra-adrenal paraganglioma were examined. With an accuracy of over 90%, computed tomography is the method of choice if there is clinical suspicion of a suprarenal tumour. Pathological changes greater than 8 to 10 mm can be demonstrated. Low absorption values, up to 25 HU, are found predominantly with hyperplasias and adenomas. Phaeochromocytomas, carcinomas and metastases, on the other hand, show significantly higher densities between 30 and 60 HU. CT also demonstrates neighbouring structures. Differentiation between benign and malignant processes is also possible by demonstrating tumour infiltration or metastases.