RT Journal Article SR Electronic T1 Embolization of the Meningohypophyseal Trunk as a Cause of Diabetes Insipidus JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 1115 OP 1118 VO 20 IS 6 A1 Constantine C. Phatouros A1 Randall T. Higashida A1 Adel M. Malek A1 Wade S. Smith A1 Christopher F. Dowd A1 Van V. Halbach YR 1999 UL http://www.ajnr.org/content/20/6/1115.abstract AB Summary: We present an unusual case of diabetes insipidus occurring after selective embolization of 50% dextrose and pure ethanol into an enlarged left meningohypophyseal trunk (MHT) supplying a dural carotid cavernous fistula. The inferior hypophyseal artery was not opacified during the selective preembolization MHT injection; however, diabetes insipidus developed abruptly a few hours after the procedure. The patient required intranasal 1-deamino-(8-D-arginine)-vasopressin for approximately 3 months, after which his symptoms resolved. The hazards of using liquid embolic agents, especially ethanol, in the cavernous branches of the internal carotid artery should always be borne in mind.