What can 3D CT angiography add in evaluation of facial vascular lesions?

Mazroa, Jehan A.; Elrakhawy, Mahamad M.

doi:10.1016/j.ejrnm.2011.12.004

Cited by 6 publications

(15 citation statements)

References 22 publications

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“…The diagnosis is based on a combination of clinical features with a variety of imaging techniques, including plain radiography, Doppler ultrasonography, CT, CTA, MRI, magnetic resonance angiography, conventional angiography, and digital subtraction angiography 2,11. Based on the current evidence3,4,7 on intraosseous vascular lesions, the present case is described as an intraosseous vascular malformation.…”

Section: Discussionmentioning

confidence: 93%

“…CT scan can differentiate the extensive speculate pattern of periosteal reaction in osteosarcoma from the intraosseous vascular malformation, bone destruction and strands of a fine, lacelike density in myxoma, partially cystic meshwork divided by coarse septae of ABC, and ground-glass appearance with ill-defined margins in fibrous dysplasia 11. CTA with 3D reformations can be considered a first-line evaluation as well as a follow-up tool for the treated lesions 2. Three-dimensional reformation shows a tangle of disorganized, tortuous vessels feeding arteries and draining veins with a vascular network in between.…”

Section: Discussionmentioning

confidence: 99%

“…Radiographically, these lesions appear as multilocular radiolucencies with small or large loculations. According to the classical description, the trabeculae are arranged in a manner resembling the spokes of a wheel or in a "sun-burst" appearance' radiating outward from the centre of the lesion toward the periphery 1,2…”

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confidence: 99%

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Diverse imaging characteristics of a mandibular intraosseous vascular lesion

et al. 2014

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Intraosseous vascular lesions of the maxillofacial region are rare, and the differential diagnosis of intraosseous vascular malformations from other jaw lesions can be challenging. In the present case, magnetic resonance imaging and three-dimensional computed tomographic angiography (CTA) was used for diagnosis, and the lesion was treated wih surgical excision. Diverse characteristics such as the "honeycomb" and "sunburst" radiographic appearances and the absence of major peripheral feeder vessels in the CTA were noted. Intraosseous vascular malformations have a varied radiographic appearance, and the nomenclature of these lesions is equally diverse, with several overlapping terms. Pathologists do not generally differentiate among intraosseous vascular lesions on the basis of histopathology, although these lesions may present with contrasting immunohistochemical and clinical behaviors requiring varied treatment strategies. This case report highlights the need for multiple imaging modalities to differentiate among vascular lesions, as well as to better understand the behaviors of these unique lesions.

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Section: Discussionmentioning

confidence: 93%

Section: Discussionmentioning

confidence: 99%

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Diverse imaging characteristics of a mandibular intraosseous vascular lesion

et al. 2014

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“…CTA with 3 D reconstruction is considered a first‐line evaluation and a follow‐up tool for treating lesions (Fig. ; Mazroa and Elrakhawy, ).…”

Section: Discussionmentioning

confidence: 99%

“…CTA with 3 D reconstruction is considered a firstline evaluation and a follow-up tool for treating lesions (Fig. 6; Mazroa and Elrakhawy, 2012). Anastomosis methods include end-to-end, end-toside, and side-to-side anastomosis.…”

Section: Discussionmentioning

confidence: 99%

Microsurgical anatomy of the maxillary artery for extracranial‐intracranial bypass in the pterygopalatine segment of the maxillary artery

et al. 2017

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The extracranial-intracranial (EC-IC) bypass using the maxillary artery (MA) has been successfully completed using a radial artery (RA) graft but the complicated anatomy and narrow exposure make it difficult. The purpose of this article is to define the microsurgical exposure of the MA through the middle fossa and describe the branches, diameter, and length of the MA available for the EC-IC bypass in the sphenopalatine fossa and anterior part of the infratemporal fossa. 5 cadaveric specimens were dissected bilaterally (10 MA dissections) to define the microsurgical anatomy of the MA through an intracranial approach. The exposable branches of the MA at the level of the infratemporal and sphenopalatine fossae were the anterior deep temporal, posterior superior alveolar, and infraorbital arteries. The origin of each branch could be exposed. The available section of the MA for use as a donor vessel is between the origin of the anterior deep temporal artery and the infraorbital artery. The mean exposable length of the MA was 19.4 mm. The mean outer diameter of the donor MA was 3.2 mm. Tension-free EC-IC bypass was possible using a RA graft between the MA and the middle cerebral artery, the MA and the supraclinoid internal carotid artery (ICA), or the MA and the petrous ICA. Exposure of the MA at the infratemporal and sphenopalatine fossae is complicated but provides length and diameter suitable as a donor artery for the EC-IC bypass. Clin. Anat. 31:724-733, 2018. © 2017 Wiley Periodicals, Inc.

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Posttraumatic subgaleal herniation of an intracranial cerebral arterial segment

Bhalla

Ulmer

Klein

et al. 2019

Baylor University Medical Center Proceedings

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A rare case of extracranial herniation of an intracranial arterial segment is described in an elderly patient presenting with loss of consciousness following mild head trauma. Cross-sectional imaging of the brain revealed a temporal skull fracture with associated intra-axial and extra-axial bleeding, and a computed tomography angiogram of the head and cerebral digital subtraction angiogram performed a few hours later displayed a rare finding. A small segment of a parietal branch of the right middle cerebral artery (M4 segment) herniated through the skull fracture, which coursed into the extracranial subgaleal space overlying the fracture site, before coursing back into the intracranial compartment. There was no evidence of cerebral ischemia or vascular compromise. The presence of a subgaleal artery on computed tomography angiogram may point to herniation of intracranial artery. In the absence of knowledge of this entity, even basic routine emergency care such as application of a scalp bandage or suturing of a scalp laceration could potentially result in devastating complications of vascular compromise and stroke.

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What can 3D CT angiography add in evaluation of facial vascular lesions?

Cited by 6 publications

References 22 publications

Diverse imaging characteristics of a mandibular intraosseous vascular lesion

Diverse imaging characteristics of a mandibular intraosseous vascular lesion

Microsurgical anatomy of the maxillary artery for extracranial‐intracranial bypass in the pterygopalatine segment of the maxillary artery

Posttraumatic subgaleal herniation of an intracranial cerebral arterial segment

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