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Original Research |15 October 1995

Transient Cortical Blindness and Bioccipital Brain Lesions in Two Patients with Acute Intermittent Porphyria

Hugo Kupferschmidt, MD; Adriano Bont, MD; Hans Schnorf, MD; Theodor Landis, MD; Eike Walter, MD; Jurg Peter, MD; Stephan Krahenbuhl, MD, PharmD; Peter J. Meier, MD

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Copyright ©2004 by the American College of Physicians
2004
  • From University Hospital, Zurich; University Hospital, Basel; and University Hospital, Geneva, Switzerland. Requests for Reprints: Peter J. Meier, MD, Division of Clinical Pharmacology and Toxicology, Department of Medicine, University Hospital CH-8091, Zurich, Switzerland. Current Author Addresses: Drs. Kupferschmidt, Krahenbuhl, and Meier: Division of Clinical Pharmacology and Toxicology, Department of Medicine, University Hospital, CH-8091, Zurich, Switzerland.
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The most common neurologic manifestations of acute intermittent porphyria are autonomic visceral neuropathy, peripheral motor neuropathy, and central nervous system dysfunctions, including seizures and neuropsychiatric disturbances [1]. In rare instances, however, patients with acute intermittent porphyria have presented with acute cortical blindness [2-5], for which deleterious vasospasm in both posterior cerebral arteries has been inferred [3, 6].
We describe two patients in whom cortical blindness was the first symptom of acute intermittent porphyria. Magnetic resonance imaging showed extensive lesions involving primarily white matter of both occipital lobes consistent with vasospasm-induced ischemic lesions. However, the pathogenesis of the...
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Kupferschmidt H, Bont A, Schnorf H, et al. Transient Cortical Blindness and Bioccipital Brain Lesions in Two Patients with Acute Intermittent Porphyria. Ann Intern Med. 1995;123:598–600. doi: https://doi.org/10.7326/0003-4819-123-8-199510150-00006

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Published: Ann Intern Med. 1995;123(8):598-600.

DOI: 10.7326/0003-4819-123-8-199510150-00006

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