The article reports on a case of functioning adrenal carcinoma in a woman of 40 with concomitant in situ carcinoma of the portio (CIN 3). She had had amenorrhoea for 14 months and early menopause was suspected. Hirsutism and other signs of virilization such as clitoromegaly and voice changes were detected upon hospitalization.. The characteristic of the clinical case is given by hormone production involving not only androgens of prevalently adrenal genesis (dehydroepiandrosterone, dehydroepiandrosterone sulphate and androstenedione), but also testosterone, more suggestive of a gonadal neoplasm. The adrenal carcinoma only produced androgens, as plasma cortisol and aldosterone concentrations were normal. Diagnosis of adrenal carcinoma was first made with hormone assays and then with the adrenal block test using dexamethasone, with adrenal ecography and abdomino-pelvic computed tomography (CT). When amenorrhoea is present and hirsutism and other signs of virilization occur ex-novo in a short period, in a woman of fertile age, a thorough endocrine study must be carried out. According to the hormone profile, the next diagnostic step should be aimed at detecting a prospective ovarian or adrenal neoplasm.