Bilateral testicular adrenal rest tissue in congenital adrenal hyperplasia: US and MR features

We describe magnetic resonance (MR) and ultrasonography (US) features of bi lateral testicular adrenal rest tissue in a 20-yr-old man with congenital a drenal hyperplasia (CAH). Scrotal ultrasonology detected bilateral homogene ous hypoechoic lesions with well-defined margins and without evidence of so und attenuation. MR is useful in defining the size of lesions, because the contrast resolution is better than with sonography and allows an accurate d efinition of the extent of disease. This case suggests that US evaluation s hould be included in periodical follow-up of patients with CAH, while MR ma y be used in the case of rapid increase in the size of the testicular mass. (J. Endocrinol. Invest. 24: 529-531, 2001) (C) 2001. Editrice Kurtis.