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AFI in fetus

This image is a schematic overview of cerebral arterial territories and stroke patterns. It shows the Circle of Willis, its major branches, and the typical brain infarct areas when each artery is occluded.

Central part (Arterial anatomy)
ICA (Internal Carotid Artery) – main anterior circulation artery.

ACA (Anterior Cerebral Artery) – supplies medial frontal & parietal lobes.
MCA (Middle Cerebral Artery)
M1 segment – main trunk
M2 superior division – lateral frontal & parietal cortex
M2 inferior division – temporal lobe
Artery of Heubner – branch of ACA supplying head of caudate & internal capsule.
Lateral lenticulostriate arteries – deep perforators from MCA supplying basal ganglia & internal capsule.

Anterior choroidal artery – supplies posterior limb of internal capsule, optic tract, choroid plexus.

Posterior circulation
Basilar artery – formed by vertebral arteries.
BA perforators – supply brainstem.
PCA (Posterior Cerebral Artery) – occipital lobe, visual cortex.
SCA (Superior Cerebellar Artery) – superior cerebellum.

AICA (Anterior Inferior Cerebellar Artery) – lateral pons & cerebellum.
PICA (Posterior Inferior Cerebellar Artery) – lateral medulla & inferior cerebellum.
Thalamoperforator arteries – supply thalamus & midbrain.

Surrounding brain sections (Infarct patterns)
The shaded regions around the arteries represent ischemic infarction areas:

ACA infarct → medial frontal/parietal lobe (leg weakness).
MCA infarct → lateral cerebral hemisphere (face & arm weakness, aphasia).
Lenticulostriate infarct → lacunar strokes in basal ganglia/internal capsule.
PCA infarct → occipital lobe (visual field defects).
Basilar artery occlusion → brainstem infarction (often fatal).
PICA/AICA/SCA infarcts → cerebellar and brainstem syndromes.

Key concept
➡️ The image correlates arterial occlusion sites with specific brain infarct locations, which is crucial for:
CT/MRI stroke interpretation
Clinical localization
Radiology & neurology exams

Diagnosis ⁉️

👌👌Distal third humeral shaft spiral fracture = Holstein–Lewis

👌👌Holstein–Lewis is a radiographic fracture pattern (distal third spiral humeral shaft fracture).
Radial nerve involvement is associated, not required for diagnosis, and nerve injury may be clinical or even absent.