What Is Pica In The Brain?

What do the cerebellar arteries supply?

The anterior inferior cerebellar artery supplies the middle cerebellar peduncle, lower lateral pons, anteroinferior surface of the cerebellum, flocculus and the choroid plexus of the lateral ventricle..

What is a cerebellar stroke?

Introduction. 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.

How common are cerebellar strokes?

A cerebellar stroke is a rare condition. According to a 2015 review, they account for less than 10 percent of all strokes.

What is the function of cerebellum?

Coordination of voluntary movements. Most movements are composed of a number of different muscle groups acting together in a temporally coordinated fashion. One major function of the cerebellum is to coordinate the timing and force of these different muscle groups to produce fluid limb or body movements.

What is Benedikt syndrome?

Benedikt syndrome is an extremely rare eponymously named cluster of symptoms relating to anatomically specific damage of varying etiology to the midbrain.[1] It is characterized by: Ipsilateral oculomotor nerve palsy. Contralateral hemiparesis. Contralateral cerebellar ataxia and/or Holmes tremor and/or choreoathetosis …

What are the signs of pica?

People with pica crave and eat non-food items such as:dirt.clay.rocks.paper.ice.crayons.hair.paint chips.More items…

What is a PICA aneurysm?

Summary. Aneurysms arising from the posterior inferior cerebellar artery (PICA) are uncommon, accounting for 0.5–3% of all intracranial aneurysms. Symptoms and signs usually include subarachnoid hemorrhage, neck pain, dizziness, and coma.

What causes Wallenberg syndrome?

Wallenberg syndrome is often caused by a stroke in the brain stem. Treatment addresses each symptom and may include a feeding tube for swallowing problems, speech and/or swallowing therapy, and medication for pain.

What does pica stand for?

Pica (/ˈpaɪkə/ PIE-kuh) is a psychological disorder characterized by an appetite for substances that are largely non-nutritive. The substance may be biological such as hair (trichophagia) or feces (coprophagia), natural such as ice (pagophagia) or dirt (geophagia), and otherwise chemical or manmade (as listed below).

What does the pica supply?

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.

How is Wallenberg syndrome diagnosed?

The most common symptom people with Wallenberg syndrome have is dysphagia, or difficulty swallowing….Other symptoms include:hoarseness.nausea.vomiting.hiccups.rapid eye movements, or nystagmus.a decrease in sweating.problems with body temperature sensation.dizziness.More items…•

Is eating ice a sign of pica?

Possibly. Doctors use the term “pica” to describe craving and chewing substances that have no nutritional value — such as ice, clay, soil or paper. Craving and chewing ice (pagophagia) is often associated with iron deficiency, with or without anemia, although the reason is unclear.

What is a pica stroke?

The Posterior Inferior Cerebellar Artery (PICA) carries blood to this part of the brain. This stroke (Wallenberg’s Syndrome) causes the person to have balance problems and lean to one side. They may also have numbness on one side of the face and body and an eye droop. They may have hoarseness and trouble swallowing.

How is Wallenberg syndrome treated?

Some doctors report that the anti-epileptic drug gabapentin appears to be an effective medication for individuals with chronic pain. Treatment for Wallenberg’s syndrome is symptomatic. A feeding tube may be necessary if swallowing is very difficult. Speech/swallowing therapy may be beneficial.

What causes a PCA stroke?

Common etiologic considerations for PCA stroke include the following: Cardiogenic embolization. Atheromatous disease of proximal vessels – Results in occlusion and/or artery-to-artery embolization. Dissection of proximal vessels – Results in occlusion and/or artery-to-artery embolization.

How do you fix pica?

How is pica treated? Your doctor will probably begin by treating any complications you’ve acquired from eating nonfood items. For example, if you have severe lead poisoning from eating paint chips, your doctor may prescribe chelation therapy. In this procedure, you’ll be given medication that binds with lead.

What triggers an aneurysm?

Any condition that causes your artery walls to weaken can bring one on. The most common culprits are atherosclerosis and high blood pressure. Deep wounds and infections can also lead to an aneurysm. Or you may be born with weakness in one of your artery walls.

What is a PCA aneurysm?

Aneurysms of the posterior cerebral artery (PCA) represent approximately 1% of all intracranial aneurysms (1–4). The surgical approach and dissection of the PCA is technically challenging owing to the complexity of its perforating branches and their intimate relationship with the cranial nerves and upper brain stem.