We present an 18-month-old girl with short stature, obesity, panhypopituitarism, diabetes insipidus, and visual defects. Postmortem examination revealed brain atrophy due to a diffuse encephalopathy, numerous calcified neurons in cerebral cortex, deep telencephalic and diencephalic nuclei, diffuse neuronal necrosis in hypothalamic nuclei, moderate atrophy of optic nerves, very thin hypophyseal stalk, and empty sella with the hypophysis compressed to the dorsal aspect of the concavity. Our hypothesis is that the presence of an empty sella in a child with hypophyseal-hypothalamic abnormalities should alert physicians to the existence of hypothalamic lesions secondary to a perinatal insult. We discuss the possible pathogenesis of these findings as well as lines of evidence available in the literature.
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