Trauma to the face, neck, and scalp can result in damage to branches of the external carotid
arteries that cannot be controlled by direct pressure alone.
The left external carotid
artery and common carotid artery were diffusely small in caliber (Figure 5).
Stenosis for 50-99% in common carotid artery induced by plaques was detected in two patients; lumen stenosis for 50-99% in internal carotid artery induced by plaques was detected in 15 patients, while lumen stenosis for 50-99% in external carotid
artery induced by plaques was detected in four patients.
In this present case, the right common carotid artery bifurcates into internal carotid and external carotid
arteries at the level of upper lamina of thyroid cartilage, the internal carotid artery being anteromedial to the external carotid
artery [FIGURE 5A, 5B].
The carotid arteries were followed from the clavicular end up to their bifurcation and proximal segments of internal and external carotid
artery were studied.
Typically, the pharyngeal branch of the external carotid
artery supplies the mass.
Preoperative angiography revealed that the extremely vascular mass was supplied by branches of the left external carotid
artery, including the meningeal branch of the occipital artery, the ascending pharyngeal artery, and the middle meningeal artery.
The type F pattern provides collateral flow to the distal ICA via transcranial anastomoses from the internal maxillary branches of the External carotid
artery (ECA) system, the so-called 'rete mirabele'.
the retropharynx and parapharynx) have been reported; outcomes have ranged from dissolution of the bone without sequela (3) to the development of external carotid
The tract then passes medially deep between the internal and external carotid
arteries, after crossing over the glossopharyngeal and hypoglossal nerves.
The atypical imaging features of the intravagal paraganglioma included inferior extension to the level of the carotid bifurcation and splayigg of the internal and external carotid
arteries, features that are similar to those seen in a case of carotid body paraganglioma.
The common carotid artery, which is the main artery for head and neck region, gives two branches in the neck- external carotid
and the internal carotid.