What is posterior inferior cerebellar artery?

The posterior inferior cerebellar artery (PICA) is the largest branch of the vertebral artery. It is one of the three main arteries that supply blood to the cerebellum, a part of the brain. Blockage of the posterior inferior cerebellar artery can result in a type of stroke called lateral medullary syndrome.

Is a cerebellar infarct a stroke?

A cerebellar infarct (or cerebellar stroke) is a type of cerebrovascular event involving the posterior cranial fossa, specifically the cerebellum. Impaired perfusion reduces oxygen delivery and causes deficits in motor and balance control.

Can cerebellar stroke cause death?

To conclude, the results of the present study demonstrated that more than a third of patients with cerebellar stroke have poor outcomes such as death, vegetative state and severe disability.

How common is Wallenberg syndrome?

Approximately 800,000 people have an acute stroke each year in the United States, notes StatPearls, and 83 percent of these are ischemic strokes. Twenty percent of ischemic strokes occur in the posterior circulation, leading to an estimated 60,000 new cases of Wallenberg syndrome each year.

What does the posterior inferior cerebellar artery supply?

The PICA supplies the medulla, the choroid plexus and tela choroidea of the fourth ventricle, the tonsils, the inferior vermis, and the inferior aspects of the cerebellar hemispheres 1, 7.

Where does the posterior cerebral artery come from?

The posterior cerebral arteries (bottom forks) arise from the basilar artery (center). The posterior cerebral artery (PCA) is one of a pair of arteries that supply oxygenated blood to the occipital lobe, part of the back of the human brain.

What is the difference between cerebral infarction and stroke?

A cerebral infarction (also known as a stroke) refers to damage to tissues in the brain due to a loss of oxygen to the area. The mention of “arteriosclerotic cerebrovascular disease” refers to arteriosclerosis, or “hardening of the arteries” that supply oxygen-containing blood to the brain.

What causes a cerebellar infarct?

What causes a cerebellar stroke? A cerebellar stroke is often caused by a blood clot that obstructs blood flow to the cerebellum. Blood clots can form in your blood vessels or travel from other parts of the body — such as the heart or the neck — until it becomes trapped in blood vessels leading to the cerebellum.

How serious is a cerebellar stroke?

A cerebellar stroke is a rare condition that can affect your balance and motor skills. Since this type of stroke presents with nonspecific symptoms, receiving treatment may be delayed. This can make cerebellar strokes life-threatening. If treated early, the chance of recovery from a cerebellar stroke is high.

Can stress cause a cerebellar stroke?

It has been found in a study that stress apparently raises the risk of a Stroke or Transient Ischemic Attack (TIA) by 59%. A TIA is a mini-stroke caused by a temporary blockage of blood flow to the brain.

Does Wallenberg syndrome go away?

The long-term outlook for people with Wallenberg syndrome is fairly positive. A successful recovery depends on where the stroke happened in the brainstem. It also depends on how much damage occurred. Some people can recover between a few weeks to six months after treatment.

What’s the symptoms of Wallenberg syndrome?


  • pain and temperature sensory loss on one side of the face as well as on the opposite side of the body.
  • rapid involuntary movements of the eyes ( nystagmus )
  • problems with balance and gait (walking) coordination.
  • vomiting.
  • vertigo.
  • nystagmus.
  • dysphagia.
  • hoarseness.

What is a P1 segment?

The P1 segment extends from the tip of the basilar artery to the origin of the posterior communicating artery. The P2 segment extends from the posterior communicating artery to the dorsal aspect of the midbrain ; this P2 segment can be further subdivided into anterior (P2A) and posterior (P2P) segments.

What does cerebellar artery mean?

The noun CEREBELLAR ARTERY has 1 sense: 1. an artery that supplies the cerebellum Meaning: An artery that supplies the cerebellum Classified under: Nouns denoting body parts Synonyms: arteria cerebelli; cerebellar artery Hypernyms (“cerebellar artery” is a kind of…):

What is pica artery?

The posterior inferior cerebellar artery (or PICA) is an artery that provides blood flow to the cerebellum, a part of the brain located behind the top of the brain stem, which helps with functions related to movement and coordination.

What is the posterior cerebellum?

The posterior lobe of cerebellum or neocerebellum, is the portion of the cerebellum below the primary fissure. It is sometimes called the neocerebellum since phylogenetically it is the newest part of the cerebellum.