Ultrasonic demonstration of inferior vena caval involvement with right adrenal gland masses.

Ultrasonographic findings in 13 right adrenal gland neoplasms were reviewed. Primary malignancy was the etiology in four patients and metastatic malignancy in nine. Anterior displacement and/or indentation of the posterior aspect of the inferior vena cava was present in nine patients. This sign, although nonspecific, helpful in the localization and diagnosis of right adrenal lesions.