Bilateral Internal Carotid Artery Segmental Agenesis: Embryology, Common Collateral Pathways, Clinical Presentation, and Clinical Importance of a Rare Condition

2016 ◽  
Vol 95 ◽  
pp. 620.e9-620.e15 ◽  
Author(s):  
Andrea M. Alexandre ◽  
Emiliano Visconti ◽  
Chiara Schiarelli ◽  
Paolo Frassanito ◽  
Alessandro Pedicelli
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Internal Carotid ◽  
Clinical Presentation ◽  
Clinical Importance ◽  
Rare Condition ◽  
Collateral Pathways

Free-Floating Thrombus in the Distal Internal Carotid Artery Causing a Stroke

2020 ◽  
Author(s):  
Spyros Papadoulas ◽  
Konstantinos Moulakakis ◽  
Natasa Kouri ◽  
Petros Zampakis ◽  
Stavros K. Kakkos
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Medical Management ◽  
Internal Carotid ◽  
Treatment Strategies ◽  
Rare Condition ◽  
Residual Stenosis ◽  
Floating Thrombus ◽  
Distal Internal Carotid Artery ◽  
Carotid Bulb

AbstractWe present a patient suffering from a stroke with a free-floating thrombus extending up to the distal internal carotid artery. The thrombus was totally resolved after a 2-week anticoagulation regimen without leaving behind any severe residual stenosis in the carotid bulb. The optimal treatment of this rare condition remains uncertain. We report some important treatment strategies that have been used in the literature, emphasizing the anticoagulation as the mainstay of therapy. Immediate surgical and interventional manipulations carry the risk of thrombus dislodgement and embolization and should be considered if there are recurrent symptoms despite medical management.

scholarly journals Eagle syndrome as a rare cause of recurrent transient ischemic stroke in Senegal (West Africa)

2021 ◽  
Vol 7 (9) ◽  
pp. 1534
Author(s):  
Birame Loum ◽  
Cheikh Ahmedou Lame ◽  
Cheikhna B. Ndiaye ◽  
Kamadore Toure ◽  
Mouhamadou Mansour Ndiaye
Keyword(s):  
Risk Factors ◽  
Ischemic Stroke ◽  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Internal Carotid ◽  
Rare Condition ◽  
Styloid Process ◽  
Neurological Impairment ◽  
Vascular Events ◽  
Eagle Syndrome

<p>Eagle syndrome is a rare condition, often characterized by nonspecific symptoms. It is due to an abnormally long or compressive styloid process on surrounding structures. Exceptionally, it can cause neuro-vascular manifestations. We report an observation of Eagle syndrome discovered incidentally in presence of recurrent transient ischemic stroke. A 74-year-old man with no cardiovascular risk factors, was admitted to our department following 4 episodes of transient ischemic stroke with right hemiplegia and aphasia, always rapidly resolving. Head and neck CT scan showed 2 long styloid processes with a marked impingement of the left one against the ipsilateral internal carotid artery. Intraoral styloidectomy was performed. The patient recovered fully and remained free of symptoms without neurological impairment, at 6 months. Eagle syndrome is a rare condition which may lead, exceptionally, to repetitive transient ischemic stroke. Surgical styloidectomy must be considered to reduce the risk of new vascular events and prevent serious complications such as dissection of the internal carotid artery.</p>

Anomalous branches of the cervical internal carotid artery: Two cases of clinical importance

1988 ◽  
Vol 8 (5) ◽  
pp. 634-637 ◽  
Author(s):  
Fred N. Littooy ◽  
William H. Baker ◽  
Timothy C. Field ◽  
Kevin S. Halstuk ◽  
John Phillips ◽  
...  
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Internal Carotid ◽  
Clinical Importance ◽  
Cervical Internal Carotid Artery

scholarly journals Spontaneous thrombosis of internal carotid artery: a natural history of giant carotid cavernous aneurysms

2009 ◽  
Vol 67 (2a) ◽  
pp. 278-283 ◽  
Author(s):  
Lucas Perez de Vasconcellos ◽  
Juan Antônio Castro Flores ◽  
Mário Luiz Marques Conti ◽  
José Carlos Esteves Veiga ◽  
Carmen Lúcia Penteado Lancellotti
Keyword(s):  
Carotid Artery ◽  
Natural History ◽  
Internal Carotid Artery ◽  
Collateral Circulation ◽  
Internal Carotid ◽  
Clinical Presentation ◽  
Spontaneous Thrombosis ◽  
Related Factors ◽  
Trigeminal Neuropathy ◽  
History Of

OBJECTIVE: To describe five cases of giant carotid cavernous aneurysms which evolved with spontaneous thrombosis of internal carotid artery (STICA), with emphasis at epidemiology, clinical presentation, natural history, related factors and neurological outcome. METHOD: There were 711 consecutives patients with 802 aneurysms with and without surgical treatment during a period of 19 years. We selected 35 patients with 40 carotid cavernous aneurysms (5%) of which 20 (50%) were giant aneurysms. Among those cases, 5 patients evolved with STICA (25%). Symptoms and findings at presentation were recorded and compared with those at outcome. RESULTS: Clinical presentation was commonly related to atherosclerotic factors such as elevated blood pressure (80%), diabetes mellitus (40%) and dislipidemy (40%). All patients presented with hemicranial headache, ophthalmparesy and retro bulbar pain, and after STICA all presented improvement of symptoms. After STICA, 4 patients had regression of deficit, 2 partial and 2 complete. Four patients had sensorial trigeminal neuropathy in V1 and V2 territories, also showing improvement of symptoms after STICA. CONCLUSION: STICA is a common outcome in giant carotid cavernous aneurysms, and is related with significant improvement of symptoms; however, it may be catastrophic for those patients without efficient collateral circulation.

Direct Surgery for Posttraumatic Carotid-cavernous Fistula as a Result of an Intradural Pseudoaneurysm: Case Report

Neurosurgery ◽  
2002 ◽  
Vol 51 (4) ◽  
pp. 1071-1074 ◽  
Author(s):  
Yoshihiko Fu ◽  
Kenji Ohata ◽  
Naohiro Tsuyuguchi ◽  
Mitsuhiro Hara
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Traffic Accident ◽  
Internal Carotid ◽  
Clinical Presentation ◽  
Posterior Communicating Artery ◽  
Carotid Cavernous Fistula ◽  
Cavernous Fistula ◽  
The Right ◽  
Embolization Procedure

Abstract OBJECTIVE AND IMPORTANCE Traumatic carotid-cavernous fistula (CCF) is currently treated with interventional neuroradiological embolization procedures. A rare case of posttraumatic CCF that resulted from an intradural pseudoaneurysm is presented. The patient was treated by direct surgery because an embolization procedure was not suitable. CLINICAL PRESENTATION A 16-year-old boy developed chemosis in the right eye 17 days after a traffic accident. Angiography revealed a pseudoaneurysm that arose from the site of origin of the posterior communicating artery, drained directly into the cavernous sinus, and formed a high-flow CCF. INTERVENTION Direct surgery was performed to repair the arterial laceration at the junction of the internal carotid artery and the posterior communicating artery. A clip was applied along the internal carotid artery. The posterior stump of the damaged posterior communicating artery was also included in the clip. Postoperatively, the CCF and pseudoaneurysm were completely obliterated, and the symptoms were cured. CONCLUSION Awareness of an unusual intradural origin of a CCF and the possibility of a direct surgical treatment should be kept in mind.

Aneurysms at a Temporopolar Artery Origin from the Internal Carotid Artery: Report of Two Cases

Neurosurgery ◽  
2003 ◽  
Vol 52 (5) ◽  
pp. 1221-1253
Author(s):  
Hatem Alkadhi ◽  
Bernhard Schuknecht ◽  
Hans-Georg Imhof ◽  
Yasuhiro Yonekawa
Keyword(s):  
Computed Tomography ◽  
Subarachnoid Hemorrhage ◽  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Internal Carotid ◽  
Clinical Presentation ◽  
Anatomic Variation ◽  
Sudden Onset ◽  
Ruptured Aneurysms ◽  
Supraclinoid Internal Carotid Artery

Abstract OBJECTIVE AND IMPORTANCE Origination of the temporopolar artery (TPA) from the supraclinoid internal carotid artery (ICA) represents a rare anatomic variation, and the presence of aneurysms at this uncommon site has never before been reported. CLINICAL PRESENTATION Two patients presented with a sudden onset of headaches and meningism. Computed tomography demonstrated diffuse subarachnoid hemorrhage in both cases. Cerebral angiography revealed ruptured aneurysms originating at a TPA origin from the ICA. INTERVENTION The patients were surgically treated, and the aneurysms were successfully clipped. For technical reasons, the TPA was sacrificed in both cases. CONCLUSION These are the first reported cases of aneurysms originating at the TPA origin from the ICA. Awareness of the existence of this variation is necessary, particularly for the management of superior wall aneurysms of the ICA.

scholarly journals Ossification of caroticoclinoid ligament and its clinical importance in skull-based surgery

2007 ◽  
Vol 125 (6) ◽  
pp. 351-353 ◽  
Author(s):  
Srijit Das ◽  
Rajesh Suri ◽  
Vijay Kapur
Keyword(s):  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Internal Carotid ◽  
Clinical Importance ◽  
Skull Bone ◽  
Posterior Border ◽  
Morphometric Measurements ◽  
Anterior Clinoid Process ◽  
Radiological Study ◽  
Caroticoclinoid Foramen

CONTEXT: The medial end of the posterior border of the sphenoid bone presents the anterior clinoid process (ACP), which is usually accessed for operations involving the clinoid space and the cavernous sinus. The ACP is often connected to the middle clinoid process (MCP) by a ligament known as the caroticoclinoid ligament (CCL), which may be ossified, forming the caroticoclinoid foramen (CCF). Variations in the ACP other than ossification are rare. The ossified CCL may have compressive effects on the internal carotid artery. Thus, anatomical and radiological knowledge of the ACP and the clinoid space is also important when operating on the internal carotid artery. Excision of the ACP may be required for many skull-based surgical procedures, and the presence of any anomalies such as ossified CCL may pose a problem for neurosurgeons. CASE REPORT: We observed the presence of ossified CCL in a skull bone. A detailed radiological study of the CCL and the CCF was conducted. Morphometric measurements were recorded and photographs were taken. The ACP was connected to the MCP and was converted into a CCF. Considering the fact that standard anatomy textbooks do not provide morphological descriptions and radiological evaluations of the CCL, the present study may be important for neurosurgeons operating in the region of the ACP.

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