[Instrumental diagnosis for therapeutic decision making in retroperitoneal tumors]

In cases of retroperitoneal soft tissue tumors, individual diagnostic strategies should be chosen. In adrenal gland neoplasias, diagnosis is mainly based on clinical evaluation including ultrasonography, hormone tests, and computed tomography. Magnetic resonance imaging, scintigraphy of the adrenal medulla, and selective adrenal vein sampling are indicated in selected cases. Other procedures are not necessary.