ArticleSurgical and radiologic anatomy : SRA2025
Aberrant courses of the occipital artery.
Article in Surgical and radiologic anatomy : SRA, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- CTA-based classification of occipital artery course variations at the atlanto-occipital interval, with surgical implications.Surgical and radiologic anatomy : SRA · 2026Observational
- Anatomical Reasons for an Impaired Internal Jugular Flow.Medicina (Kaunas, Lithuania) · 2025Review
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3 authors.
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Abstract
purposeThe occipital artery (OA), typically arising from the external carotid artery (ECA), usually courses deep to the posterior belly of the digastric muscle as it ascends toward the skull base. While variations in the height of origin from the ECA are known, aberrant courses of the OA have not been previously documented.
methodsThis study presents a four-case series identified through retrospective analysis of archived CT angiograms involving three female and one male patient, aged between 57 and 66.
resultsIn two cases, the OA was observed to pass deep to the internal jugular vein instead of its usual superficial trajectory; these variants were located on the left side. In the remaining two cases, the OA demonstrated aberrant retromandibular courses deep within the parotid glands. One of these cases revealed bilateral retromandibular segments of the OA, while the other exhibited a common occipitoauricular trunk originating from the right superficial temporal artery within the parotid space, which subsequently divided into the posterior auricular artery and the OA.
conclusionThese previously unreported anatomical variations are clinically significant and should be considered during surgical or interventional procedures involving the parotid region.
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