title: Parinaud's syndrome due to an unilateral vascular ischemic lesion.
abstract: A 59-year-old man who complained of binocular vertical diplopia after an exploratory laparotomy, complicated by cardiorespiratory arrest during anesthetic induction, was found to have Collier's sign, anisocoria, complete paralysis of upward vertical gaze associated with convergence-retraction nystagmus on attempted upgaze and skew deviation with hypertropia in the left eye without ptosis, and an absent Bielschowsky sign. Magnetic resonance imaging of the brain showed a small lesion in the left paramedian midbrain compatible with microvascular ischemic sequelae. This patient was diagnosed with Parinaud's syndrome (dorsal midbrain syndrome) associated with a vertical strabismus from an unilateral vascular ischemic paramedian midbrain lesion.
authors: Department of Ophthalmology, Pedro Hispano Hospital, Rua Dr. Eduardo Torres, Senhora da Hora, 4464-513, Matosinhos, Portugal, juseserino@gmail.com.
authors: Josefina
authors: J
authors: Serino
authors: João
authors: J
authors: Martins
authors: Liliana
authors: L
authors: Páris
authors: Ana
authors: A
authors: Duarte
authors: Isabel
authors: I
authors: Ribeiro
mesh_terms: D002545:Brain Ischemia / Q000150:complications*; D004172:Diplopia / Q000209:etiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D015835:Ocular Motility Disorders / Q000209:etiology*; D013577:Syndrome
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