Bilateral testicular adrenal rests in a boy with congenital adrenal hyperplasia
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The adrenals and testes originate from the neighboring area in the embryo and the high level of ACTH in patients with CAH causes proliferation of aberrant adrenal cells in the testes, gonal dysfunction and infertility. The incidence of testicular adrenal rests in CAH varies and increases with age. In childhood, the prevalence is about 25% and mostly not palpable on physical exam . A hypoechoic testicular mass without architecture distortion in patients with CAH is characteristic of adrenal rests, particularly as it is bilateral and should not be misinterpreted as bilateral testicular tumors such as lymphomas . The mass is treated with steroids and rarely requires surgical enucleation when the adrenal rests do not respond to medical treatment [1, 2].