Virilizing adrenocortical tumors in adult women. Report of 10 patients, 2 of whom each had a tumor secreting only testosterone.

BACKGROUND: Virilizing adrenocortical tumors are uncommon in adult women. These lesions generally secrete dehydroepiandrosterone (DHEA) and dehydroepiandrosterone sulfate (DHEAS), but not testosterone, which usually is produced by ovarian tumors. Exceptionally, adrenal growths may give off testosterone and no other assessable androgen. The detection of the site of excess testosterone yield is paramount for proper surgery. The true nature of the growth often is unpredictable, even at the time the pathologist examines the surgical specimen.
METHODS: The workup in a virilized adult woman relies on biochemical tests such as 24-hour urinary 17-KS and 17-OHCS levels and plasma corticosteroid levels (testosterone, DHEA, DHEAS, and androstenedione), and on modern imaging studies such as ultrasonography, computed tomography, and digital angiography.
RESULTS: Among a series of 190 adrenal tumors collected in the last 30-year period, only 10 virilizing growths (5.3%) were detected. Two cases of virilization mixed with cushingoid features were observed. In two other cases, reported in detail, the tumor secreted testosterone only, without other assessable androgens. Seven of the 10 tumors were malignant.
CONCLUSIONS: In cases of tumors secreting testosterone only, high-resolution imaging has contributed significantly in pinpointing the site of the growth, whereas dynamic hormone testing, using selective stimulation or suppression studies, has been misleading. The malignant nature of the growth may be revealed only by the presence of metastases, because pleomorphism and capsular and vascular invasion have been detected histologically in clinically benign tumors. The prognosis for large tumors usually is dismal.