The posterior inferior cerebellar artery (PICA) is the vessel that perfuses the lateral medulla, and is usually occluded due to thrombosis or embolism in its parent vessel, the vertebral artery.
What causes a pica stroke?
Etiology: Most commonly caused by atherothrombotic occlusion of the vertebral artery (then posterior inferior cerebellar arteray and least often the medullary arteries. Vertebral artery dissection associated with: History of trauma, neck.
Where is the Pica in the brain?
Diagram of the arterial circulation at the base of the brain (inferior view). PICA is labeled at bottom right. 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.
What is the origin of pica?
Pica was first used as a term for a perverted craving for substances unfit to be used as food by Ambrose Paré (1509-1590). Pica is the medieval Latin name for the bird called the magpie, who, it is claimed, has a penchant for eating almost anything. … Furthermore the French form of pica is pie.
What does the inferior cerebellar artery 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 does pica stand for?
|PICA||Publications in Construction and Agriculture (Association of Equipment Manufacturers)|
|PICA||Podiatry Insurance Company of America (Franklin, TN)|
|PICA||Pacific Islanders’ Cultural Association|
|PICA||Power Industry Computer Applications (Conference)|
Is pica a sign of anemia?
Pica is not a cause of iron deficiency anemia; pica is a symptom of iron deficiency anemia. It is the link between iron deficiency anemia and lead poisoning, which is why iron deficiency anemia should always be sought when a child is diagnosed with lead poisoning.
What is Pica termination?
A vertebral artery (VA) terminating in a posterior inferior cerebellar artery (PICA) is often considered to be a normal variation associated with VA hypoplasia. … PICA termination of the VA (PICA-VA) was identified as the VA not communicating with the basilar artery (BA) but ending into a PICA.
What is Wallenberg syndrome?
Wallenberg’s syndrome is a neurological condition caused by a stroke in the vertebral or posterior inferior cerebellar artery of the brain stem.
Where does the vertebral artery run?
The vertebral arteries arise from the subclavian arteries, one on each side of the body, then enter deep to the transverse process at the level of the 6th cervical vertebrae (C6), or occasionally (in 7.5% of cases) at the level of C7. They then proceed superiorly, in the transverse foramen of each cervical vertebra.
What is it called when you eat anything?
Pica is an eating disorder that involves eating items that are not typically thought of as food and that do not contain significant nutritional value, such as hair, dirt, and paint chips.
What does the basilar artery supply?
The basilar artery (BA) serves as the main conduit for blood flow through the posterior circulation. It directly supplies the brainstem and cerebellum and provides distal blood flow to the thalami and medial temporal and parietal lobes.
Where does the posterior cerebral artery come from?
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. The two arteries originate from the distal end of the basilar artery, where it bifurcates into the left and right posterior cerebral arteries.
What is a AICA stroke?
AICA (anterior inferior cerebellar artery) strokes.
The AICA syndrome usually presents with vertigo and unilateral ipsilateral deafness from labyrinthine artery ischemia. Large strokes are accompanied by ipsilateral facial weakness and ataxia. It is the second most common brainstem stroke, about 10% of PICA frequency.
What is the cerebellar artery?
A cerebellar artery is an artery that provides blood to the cerebellum. Types include: Superior cerebellar artery. Anterior inferior cerebellar artery. Posterior inferior cerebellar artery.
What is Type 2 vascular loop?
Vascular loop of the AICA is classified into 1: type I: vascular loop within the cerebellopontine angle level. type II: vascular loop proximal to the IAC extends to less than 50% of the canal. type III: vascular loop distal to the IAC extends to more than 50% of the canal.