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1.
Acta Neurol Taiwan ; 28(2): 57-58, 2019 Jun 15.
Artigo em Inglês | MEDLINE | ID: mdl-31867708

RESUMO

ation. No significant past medical history except for pharmacologically controlled mild hypertension. During the neurological examination the patient appeared alert, oriented and showed no deficit of strength, sensitivity and coordination. An expressive temporary aphasia was confirmed and Transient Ischemic Attacks (TIA) was suspected. Cranial Computed Tomography Angiography (CTA) showed hypoplasia of left Internal Carotid Artery (ICA) with a focal duplication in the intracavernous segment (Figure 1, arrowhead). Circle of Willis appears to be regular, with the left middle cerebral artery supported by the vertebrobasilar system through the left posterior communicating artery of increased caliber, and by the contralateral ICA via anterior communicating artery. Consequently, patient underwent Digital Subtraction Angiography (DSA) lateral view that confirmed the segmental duplication of the left intracavernous ICA (Figure 2, arrowhead). Vessels had a lightly winding course within the cavernous sinus and the intracranial branches downstream of their confluence presented a slight delay in visualization. After few hours her symptoms completely regressed and, in agreement with clinical and imaging data, diagnosis of TIA was made. The transient ischemic event was, in fact, most likely caused by low flow to the left cerebral hemisphere due to hypoplasia of the ICA and aforementioned abnormalities of its intracavernous tract that caused alteration and reduction of intracranial flow distribution. Medical treatment with anti-platelet drugs was started and patient was discharged with a clinical, laboratory and imaging follow-up program. Duplications of ICA in the intracranial tract are very rare(1,2). Most of the cases are localized in the supraclinoid segment. To our knowledge this is the first case described in literature of true duplication of ICA in the intracavernous tract. Patients with congenital variants or acquired pathology of ICA are mostly asymptomatic, but when symptoms appear, patients must be investigated(1-3). CTA is considered the first line non-invasive diagnostic method for intracranial vascular anatomy. At present, medical treatment remains the choice in patients with no-complicated duplications of ICA in the intracranial tract.


Assuntos
Artéria Carótida Interna , Angiografia Digital , Artéria Carótida Interna/diagnóstico por imagem , Angiografia Cerebral , Angiografia por Tomografia Computadorizada , Feminino , Humanos
2.
Acta Neurol Taiwan ; 28(4): 126-130, 2019 Dec 15.
Artigo em Inglês | MEDLINE | ID: mdl-32026456

RESUMO

We report two cases of patients who presented to the Emergency Room (ER) with a history of recurrent epistaxis. Conservative treatment was provided to both patients and the most common causes of bleeding were excluded. Patients underwent radiological examinations that revealed the presence of an Intracavernous Carotid Artery Aneurysm (ICAA) extending into the sphenoid sinus through the erosion of postero-lateral bony wall. Aneurysms rupture caused massive nasal bleeding. The purpose of our case report is to illustrate as a very common symptom like epistaxis, in a small number of cases can be underestimated: rare and severe causes of nasal bleeding, as ICAA, should therefore always be considered in the differential diagnosis.


Assuntos
Doenças das Artérias Carótidas , Epistaxe , Aneurisma Intracraniano , Artéria Carótida Interna , Diagnóstico Diferencial , Humanos
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