#Whats pica manual#

It is not unusual to notice that younger children are frequently eating nonnutritive substances. It is important to understand that in order to diagnose pica, the individual must be at least 2 years of age.

Pica usually occurs as an isolated disorder but there are instances when it may co-exist with schizophrenia, OCD, and trichotillomania. In some parts of the world, the consumption of non-nutritive substances is culturally accepted. In women, it is most often seen during pregnancy. Īlthough pica is seen in children, it is also a common eating disorder in patients who are intellectually impaired. The nature of ingested items is variable, including but not limited to earth (geophagy), raw starches (amylophagy), ice (pagophagia), charcoal, ash, paper, chalk, cloth, baby powder, coffee grounds, and eggshells. For diagnosis, the behavior must persist for at least one month, not be in keeping with the child's developmental stage (and age cut off of 24 months or more is suggested by DSM V), and not be socially normative or culturally acceptable behavior. The term is derived from 'pica-pica,' the Latin word for the magpie bird, because of the bird's indiscriminate gathering and eating a variety of objects for the sake of curiosity.

#Whats pica manual#

Rarely a single unpaired PICA will supply the PICA territory bilaterally 8.The American Psychiatric Association's Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) defines pica as eating nonnutritive, nonfood substances over a period of at least one month.

posteroinferior cerebellar hemispheres (up to the great horizontal fissure).

It has a variable territory depending on the size of the AICA ( AICA-PICA dominance). Note: occasionally, a small vertebral artery will terminate into a common AICA-PICA complex. The posterior inferior cerebellar artery gives off the following arteries:

supplies the vermis and adjacent hemisphere.

The main trunk of the posterior inferior cerebellar artery usually bifurcates somewhere along the margin of the cerebellar tonsil into

supplies branches to the cerebellar surface.

contains the cranial loop, also known as the choroid point or choroid arch, an upward convex loop that has a constant relation to the 4 th ventricle and gives rise to choroidal arteries.

courses in the cleft between the tela choroidea, inferior medullary velum rostrally, and superior pole of the cerebellar tonsil caudally.

marks the transition between the proximal (medulla-supplying) and distal (cerebellum-supplying) parts of the posterior inferior cerebellar artery.

contains the caudal loop, a downward convex loop that mostly remain superior to the foramen magnum but occasionally extend below it.

courses along the posterolateral surface of the medulla and inferior cerebellar tonsil.

variably courses (ascending or descending) along the side of the medulla near or between the origins of the 9 th, 10 th, and 11 th cranial nerve roots.

courses along the front of the medulla at the level of the inferior olive.

The segmental anatomy was defined microsurgically by Lister et al.

occasionally loops around the cerebellar tonsil.

10% arise from the basilar rather than vertebral artery.

~20% arise extracranially, inferior to the foramen magnum.