Persistent nonfused segments of the basilar artery: longitudinal versus axial nonfusion.
AJNR Am J Neuroradiol
; 25(7): 1194-6, 2004 Aug.
Article
en En
| MEDLINE
| ID: mdl-15313708
ABSTRACT
Embryologic development of the basilar artery occurs along two axis systems longitudinal fusion and axial fusion. Longitudinal fusion consists of midline fusion of paired ventral arteries and reflects the simplified pattern of arterial anatomy found in the spinal cord. Axial fusion consists of fusion of the distal basilar artery, which arises from the caudal division of the internal carotid artery, to the midbasilar agenesis to the posterior inferior cerebellar artery termination of the vertebral arteries. Persistent longitudinal nonfusion (or complete duplication) of the basilar artery is very rare, and persistent axial nonfusion is even rarer. We report one case of persistent longitudinal nonfusion of the basilar artery in a 3-year-old boy and a case of persistent axial nonfusion of the basilar artery in a 43-year-old man.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Arteria Basilar
/
Insuficiencia Vertebrobasilar
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Procesamiento de Imagen Asistido por Computador
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Imagen por Resonancia Magnética
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Angiografía Cerebral
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Angiografía de Substracción Digital
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Epilepsia Tónico-Clónica
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Angiografía por Resonancia Magnética
Tipo de estudio:
Diagnostic_studies
/
Risk_factors_studies
Límite:
Adult
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Child, preschool
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Humans
/
Male
Idioma:
En
Año:
2004
Tipo del documento:
Article