Bihemispheric Posterior Inferior Cerebellar Artery Occurring with an Azygos Anterior Cerebral Artery: Case Study
- Resource Type
- article
- Authors
- Jamie Toms; Rishi Wadhwa; Sudheer Ambekar; Hugo Cuellar
- Source
- Case Reports in Radiology, Vol 2014 (2014)
- Subject
- Medical physics. Medical radiology. Nuclear medicine
R895-920
- Language
- English
- ISSN
- 2090-6862
2090-6870
Variations in intracranial vasculature are well known. We report a rare anatomic variation in a patient who underwent cerebral angiography for suspected intracranial aneurysm. Digital subtraction angiography revealed a bihemispheric posterior inferior cerebellar artery (PICA) and an azygous anterior cerebral artery (ACA). There was no evidence of any aneurysm or vascular abnormality. To our knowledge, this is the first reported case of a patient with a common PICA supplying both the cerebellar hemispheres and a common ACA supplying ACA territory bilaterally. It is important for the physician to be aware of these anatomical variations in order to differentiate a normal variant from a pathological condition.