Bilateral Abnormal Origin of the Anterior Branches of the External Carotid Artery (original) (raw)
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SAGE Open Medical Case Reports
The common carotid artery bifurcates into two terminal branches—the external and internal carotid arteries. The head, neck, and face regions principally get their blood supply from the external carotid artery and its branches. Some previous articles have mentioned the abnormal pattern of the external carotid artery branching and its variable origin. In this article, a rare case has been documented, having the combination of anomalies of the high carotid termination and bilateral variable origin of the ventral branches of the external carotid artery encountered during routine dissection of the head and neck region of a 55-year-old male cadaver in the Department of Anatomy. In this instance, on the right side of the neck, we observed the presence of a thyrolinguofacial trunk which arose from the ventral surface of the external carotid artery, and on the left side, the linguofacial trunk emerged from the ventral surface of the external carotid artery while the superior thyroid artery b...
Cureus, 2022
Trifurcation of the common carotid artery in the neck region is a rare anatomical variation. In the present study, we reported a rare case having the combination of anomalies of the bilateral high common carotid arteries trifurcation and variable origin of lower branches of the external carotid artery during routine dissection of the head and neck region of a 60-year-old male cadaver in the Department of Anatomy. Both on the left and right sides of the neck region, the common carotid artery gave off three terminal branches: internal carotid artery, external carotid artery, and ascending pharyngeal arteries. Further, we also observed the presence of bilateral linguofacial trunks (common arterial trunks) that emerged from the external carotid arteries and also the left superior thyroid artery that originated directly from the left common carotid artery. Even though the embryogenesis of the variable origin of such arterial trunks is not apparent, it is very indispensable to have sound knowledge and better comprehension of the accurate anatomical architecture of such a rare combination of carotid arterial system anomalies for correct interpretation of the vascular imaging that pave the pathway for successful execution of surgical interventions in the neck region because of its utmost clinical implication.
Variant origins of arteries in the carotid triangle - A case report
Biomedical Journal, 2012
The left superior laryngeal artery was observed arising from the external carotid artery instead of the superior thyroid artery in the cadaver of an approximately 70 year-old Asian man. In addition, on the same side, the superior thyroid artery arose from the common carotid artery 2 cm before the bifurcation instead of its usual origin from the external carotid artery. From the external carotid artery, the lingual and facial arteries arose from the common linguofacial trunk. The nerves in the carotid triangle were normal in course. No variations were observed on the right side carotid system. The multiple variations in this case have not been previously described. The embryogenesis of this combination of variations is not clear, but the anatomic consequences may have important clinical implications. As angiography has gained popularity in diagnostic approaches in recent years, it is essential to be aware of these variations so that they are not overlooked in differential diagnoses.
Anomalous Origin of the Superior Thyroid Artery from the Internal Carotid Artery
Open Access Macedonian Journal of Medical Sciences, 2021
Anatomical anomalies in the human body are common, and their description helps physicians and surgeons during treatment. This article presents the discovery of an abnormal arterial branch originating from the internal carotid artery (ICA). Typically, this artery does not give off branches until it passes through the carotid canal, but during a cadaveric dissection of a 58-year-old female, the superior thyroid artery (STA) was found to be originating from the ICA. Some common variations of the origin of the STA are the common carotid and at the bifurcation of the Common carotid, but rarely, has it been seen origination from the ICA. No known health implication of this variation has been reported, although surgeries can become difficult since the artery is used as an anatomical landmark.
Aberrant common and internal carotid arteries and their surgical implications: a case report
2020
n its normal anatomy, the common carotid artery (CCA) orignates in the brachiocephalic trunk on the right and directly rom the aortic arch on the left.1 The CCA then ascends n the neck, up to the upper border of the thyroid cartiage, where it bifurcates. In the cervical region, the common arotid arteries are located one on each side, anterolaterlly in the neck, being subsequently related to the cervical ympathetic chain, with the transverse apophyses of the ervical vertebrae and are covered by the pre-vertebral uscles and deep cervical aponeurosis.2 The internal carotid artery (ICA) originates at the CCA ifurcation, which shows an ascending path towards the ase of the skull, without originating any branches. Howver, several anatomical variations are reported in its path. ost-mortem statistics indicate that the incidence of such ariations is between 10% and 40% of the population, being sually bilateral. The origin of the different variations is ontroversial. Some are believed to repr...
Surgical and Radiologic Anatomy, 2006
We report a case of variant origin of superior thyroid artery (STA), occipital artery (OA) and ascending pharyngeal artery (APA) from the cervical segment of internal carotid artery (ICA) in a 63-year-old male patient, who presented with acute subarachnoid hemorrhage. Four-vessel angiography showed asymptomatic occlusion of ICA giving origin to the anomalous branches. There was common origin of the STA and the OA. The APA originated from the OA. We did not Wnd any other description in the literature on variant origin of STA from the cervical segment of ICA in the presence of a well-developed external carotid artery.
Rwanda Medical Journal
INTRODUCTION: The inferior thyroid artery (ITA) usually originates from the thyrocervical trunk in the majority of the human population (90.5%), or from the subclavian artery in a few populations of humans (7.5%). It is quite rare to find the ITA originating from the common carotid artery (CCA). CASE PRESENTATION: This study was a case report of a cadaveric dissection at the anatomy department, university of Rwanda. The case was a 54-year-old male who had 2 inferior thyroid arteries on the left side, with one originating from the thyrocervical trunk and the other taking a rare anatomical origin from the CCA. CONCLUSION: It is important that such anatomical arterial patterns be documented in order to create awareness that is useful to surgeons and imaging specialists. This will help reduce the risk of iatrogenic complications during the surgical intervention to the thyroid gland.
Bilateral variation in the divisions of common carotid artery-a case report
During routine dissection, we found bilateral variation in the division of common carotid artery in a 48-year-old male cadaver. The right carotid, originated from the brachiocephalic trunk behind the right sternoclavicular joint. The left carotid, originated directly from the aortic arch. Division of common carotid artery occured at higher level; i.e., above the level of superior lamina of thyroid cartilage. On the right side 4.2 cm and on left side 3.5 cm above the superior lamina of thyroid cartilage and just behind the angle of mandible. The arteries did not have any branches; except on the right side the superior thyroidal artery arose from the 2.5 cm below the bifurcation. Knowledge of origin and bifurcation of common carotid artery is very important to the ENT surgeons, general surgeons, endocrinologist and vascular surgeons.