Anomalous course of the intracranial internal carotid artery into the orbit: case report.
case_report · Level V
Where this comes from
- Record sourced from PubMed, PMID 21990502.
- Also identified by DOI 10.1136/neurintsurg-2011-010037.
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Abstract
In this report, a case of anomalous internal carotid artery looping into the orbital apex is presented. The patient was a 41-year-old man with sudden onset headache, suggestive of aneurysmal subarachnoid hemorrhage (SAH). Imaging with CT demonstrated a perimesencephalic distribution of blood. Cerebral angiography confirmed non-aneurysmal, perimesencephalic SAH, but incidentally noted an anomalous left internal carotid artery with a course into the orbital cone. This is the only known example of this anatomic variation. Potential embryological explanations are discussed.
Medical subject headings
- Carotid Artery, Internal
- Orbit