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Wallenberg syndrome

Other Names for this Disease
  • Lateral medullary syndrome
  • PICA syndrome
  • Posterior inferior cerebellar artery syndrome
  • Vertebral artery syndrome
  • Wallenberg's syndrome
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Wallenberg syndrome is a condition that affects the nervous system. Signs and symptoms may include swallowing difficulty; hoarseness; dizziness; nausea; vomiting; quick involuntary eye movements (nystagmus); balance and coordination problems; and Horner syndrome. It is often caused by a brain stem stroke.[1][2] Treatment generally focuses on the specific signs and symptoms present and may include use of a feeding tube for swallowing difficulty, speech and/or swallowing therapy, and medication for pain.[1]
Last updated: 3/16/2012


  1. NINDS Wallenberg's Syndrome Information Page. National Institute of Neurological Disorders and Stroke (NINDS). February 15, 2007; Accessed 3/13/2012.
  2. Love BB, Biller J. Neurovascular System. In: Goetz CG. Textbook of Clinical Neurology, 3rd ed. Philadelphia, PA: Saunders; 2007;
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Basic Information

  • MedlinePlus provides much more information on stroke in general. MedlinePlus is a Web site designed by the National Library of Medicine to help you research your health questions.
  • The National Institute of Neurological Disorders and Stroke (NINDS) collects and disseminates research information related to neurological disorders. Click on the link to view information on this topic.

In Depth Information

  • PubMed is a searchable database of medical literature and lists journal articles that discuss Wallenberg syndrome. Click on the link to view a sample search on this topic.