title: Neurogenic diabetes insipidus in a sheep.
abstract: A 7-month-old Suffolk-cross ram was examined because of polydipsia and polyuria of 2 months" duration. Neurogenic diabetes insipidus was diagnosed on the basis of failure to concentrate urine of low specific gravity in response to water deprivation and a positive response to antidiuretic hormone administration. Post-mortem examination of the brain revealed degeneration in the cerebral peduncles, an absence of pituitary neural tissue and evidence suggesting external pressure as the cause.
mesh_terms: D000818:Animals; D003919:Diabetes Insipidus / Q000503:physiopathology / Q000662:veterinary*; D008297:Male; D012756:Sheep; D012757:Sheep Diseases / Q000503:physiopathology*; D014667:Vasopressins / Q000172:deficiency*
chemical_list: D014667:Vasopressins