Abstract
Eleven male patients with pituitary stalk interruption syndrome (PSIS) at our hospital were retrospectively analyzed with respects to clinical features, endocrine status and imaging characteristics.The clinical manifestations included growth retardation and delayed puberty. All of them were deficient in growth hormone and pituitary gonadotropin secretion. Secondary hypothyroidism and hypocortisolism occurred in 8 patients and one had concurrent central diabetes insipidus. MRI with gadolinium contrast revealed no pituitary stalk or slim and anterior pituitary hypoplasia with ectopic posterior pituitary. The clinical characteristics of PSIS are growth retardation and delayed puberty, partial or complete adenohypophyseal dysfunction. The detection of hypothalamic pituitary region by MRI is an important diagnostic tool. Key words: Pituitary diseases; Pituitary stalk interruption syndrome
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