Pre-Cushing's syndrome: a case report.

A 67-year-old man affected by prostate cancer was incidentally found to have a nodular enlargement of the left adrenal gland without apparent changes in hormonal status. The adrenal mass was found to be scintigraphically active, the radiolabelled compound being concentrated in its context with a consensual suppression of the contralateral uptake. The patient underwent a resection of the adrenal tumor. Histologically and biochemically, the adrenal mass was found to be a non-functioning adenoma. The radioisotopic uptake along with the non-hormonal activity prompted us to call this tumor "Pre-Cushing's syndrome" of the adrenal cortex.