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Report of a New Family With Unusual Features

Ryan J. Uitti, MD; Jeffrey R. Donat, MD; B. Rozdilsky, MD; Ralph J. Schneider, MD; Arnulf H. Koeppen, MD

Arch Neurol. 1988;45(10):1118-1122.

Abstract
• A family had a dominantly inherited amyloid angiopathy that involved the meninges of the brain and spinal cord, retina, vitreous humor, peripheral nerves, and systemic organs. Clinical features included hemiplegic migraine, periodic obtundation, psychosis, seizures, intracerebral hemorrhage, myelopathy, visual impairment, deafness, and peripheral neuropathy. Pathological findings consisted of amyloid deposition in the leptomeningeal and retinal vessels, in the vitreous humor, and in perivascular tissue throughout the body. Evaluation of the amyloid showed it to be a transthyretin (prealbumin). A brief course of plasmapheresis produced a short-lived decreased concentration in circulating transthyretin.

Author Affiliations
From the Departments of Clinical Neurological Sciences (Drs Uitti and Donat), Pathology (Dr Rozdilsky), and Ophthalmology (Dr Schneider), University of Saskatchewan, Saskatoon, and the Neurology Service, Veterans Administration Medical Center, Albany, NY (Dr Koeppen).

Footnotes
Accepted for publication April 17, 1988.

Reprint requests to Department of Clinical Neurological Sciences, University of Saskatchewan Hospital, Saskatoon, Saskatchewan, Canada S7N oXo (Dr Uitti).

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