From which artery do the Anterior Inferior Cerebellar Arteries (AICA) typically originate?

The Anterior Inferior Cerebellar Arteries (AICA) typically arise from the proximal basilar artery. Key diagnostic features include their role in supplying the lateral pons and the inner ear structures, which can be implicated in lateral pontine syndrome if occluded. Clinically, AICA strokes can present with vertigo, hearing loss, and facial weakness. A common pitfall is confusing AICA territory infarcts with those of the posterior inferior cerebellar artery (PICA), which can have overlapping symptoms.