Three personal cases, and the cases of literature of congenital adrenal hypoplasia with cytomegaly allow an histological definition. Clinical and biological findings are described. In 2 cases, a diffused hypertrophy of the cells responsible for corticotrope or melanotrope secretion was discovered; it confirmed the peripheral adrenal origin of the condition, as well as high plasmatic level of ACTH, in the third case. Sex-bound cytomegalic adrenal hypoplasia is differenciated from other cortico-adrenal insufficiencies with cytomegaly.
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