Herpes Simplex Virus Type 1 Encephalitis with Syndrome of Inappropriate Antidiuretic Hormone Secretion: A Case Report

Patient’s that present with concerns for viral encephalitis with concomitant syndrome of inappropriate antidiuretic hormone secretion (SIADH) should raise suspicion for herpes simplex virus type 1(HSV-1) encephalitis. Early recognition and treatment with high dose acyclovir can improve neurological symptoms associated with HSV encephalitis and SIADH.