A rare case of central post-gravid diabetes insipidus
L.F. Morrone, A. Saracino, A. Ramunni, E. Fasianos, P. Coratelli, G. Passavanti
Department of Internal and Public Medicine, Division of Nephrology, University of Bari, Italy
DOI 10.5414/CNP60433
Abstract
Central diabetes insipidus (CDI) arising in the puerperal period has been attributed mainly to Sheehan’s syndrome or to lymphocytic infundibulo-neurohypophysitis. We report the case of a 24-year-old woman who came to our observation for the appearance, 3 weeks after a normal delivery, of a polyuric-polydipsic syndrome. Measurements of urinary volumes, plasma osmolality and urinary osmolality, in conditions of free water intake, water deprivation and a water deprivation-vasopressin administration test, demonstrated CDI. Brain magnetic resonance imaging showed a normal morphology of the adenohypophysis and total absence of the neurohypophysis. Assays of the pituitary hormones were found to be within normal limits. These results, incompatible with a diagnosis of Sheehan’s syndrome and lymphocytic infundibulo-neurohypophysis, excluded all the other known causes of acquired CDI. Our diagnosis was therefore of post-gravid idiopathic CDI. Thus, it is possible that in the puerperal period other diseases of the posterior hypophysis may develop, of unknown etiopathogenesis but equally responsible for CDI.
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- Department of Internal and Public Medicine, Division of Nephrology, University of Bari, Italy
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Citation
L.F. Morrone, A. Saracino, A. Ramunni, E. Fasianos, P. Coratelli and G. Passavanti.A rare case of central post-gravid diabetes insipidus
. 2003; 60: 433-436. doi: 10.5414/CNP60433.
