[Histiocytosis, central diabetes insipidus, and pregnancy].

Dysfunction of the hypothalamus causes a significant polymorphism of the clinical symptomatology of diseases of the hypothalamic-pituitary system, associated with an excess or deficiency of pituitary hormones and the corresponding hyper- or hypofunction of the peripheral endocrine glands. In particular, a violation of the integrity of the hypothalamic-neurohypophysial tract, synthesis, transportation, and release of vasopressin leads to disorders of the water balance in the form of central diabetes insipidus. In 15-30% of all cases of diabetes insipidus, its primary (idiopathic) forms are detected.