A case report: How a failure of reversal in arterial flow during development lead to the hypoplasia of a posterior cerebral artery and a resulting incomplete Circle of Willis

Anatomical variations of the Circle of Willis have been well documented, however, they are rarely photographically documented .1 –3 This anatomical variation was discovered during the dissection class of the undergraduate anatomy module within the medicine curriculum of Queen's University Belfast. This specimen displays a physiological failure of the cerebral arteries to undergo reverse flow during development, this lead to the hypoplasia of a right posterior cerebral artery and a resulting incomplete Circle of Willis.

Source: Artery Research - September 1, 2016 Category: Cardiology Authors: Timothy Patterson, Matthew O'Donnell, Samantha Taylor, Sarah Patterson Tags: Short communication Source Type: research