RESUMEN
Cushings syndrome in pregnancy is rare. This is explained by the syndromes association with amencerhea, infertility and abortions. Matemal and fetal risks increase markedly when pregnancy does occur in woman with hypercortisolism. Since pregnant women without Cushings syndrome develop some features of Cushings syndrome, such as hypertension, hyperglycemia and striae, a high index of clinical suspician must be maintained to prevent delay in diagnosis. The physiologic changes in adrenocorticostemid metabolism during pregnancy further complieate the diagnosis. We describe a case of Cushings syndmme in pregnancy secondary to an adrenal cortical adenoma which was diagnosed immediately after a preterm delivery in 24-year-old woman with preeclampsia.