Computed tomographic assessment of adrenal masses.

Clinical and biochemical information together with good spatial resolution by CT offers final assessment of certain adrenal masses even when their size is 1-2 cm. Moderate sized tumours, i.e. up to 8 cm in size are amenable to accurate definition by CT. In some situations it is the final diagnostic modality of adrenal tumours. Tumour recurrence or deposition in the adrenal area is accurately followed by performing sequential scans. Extension and dissemination of neoplasms beyond the confines of the suprarenal can now be defined more readily by CT. Lipid and blood content of adrenal tumours gives low density areas which can mistakenly be assessed as 'cystic' lesions. Large tumours in the area frequently require additional clinical, biochemical and radiological investigation before diagnostic solution is achieved.