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A new classification system of superior and inferior gemelli muscles: a cadaveric study.

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Anastomosis basilovertebral lateral primitiva persistente que replantea la fenestración de la unión vertebrobasilar

George Triantafyllou1,2, Panagiotis Papadopoulos-Manolarakis1,3, Nikolaos-Achilleas Arkoudis4,5

  • 1Department of Anatomy, School of Medicine, Faculty of Health Sciences, National and Kapodistrian University of Athens, 75 Mikras Asias Str., Goudi, 11527, Athens, Greece.

Surgical and radiologic anatomy : SRA
|September 3, 2025
PubMed
Resumen

Se identificaron anillos arteriales raros en la unión vertebrobasilar (VBJ), probablemente segmentos de anastomosis basilovertebral lateral primitiva persistente (PLBVA). Estos raros hallazgos requieren una cuidadosa evaluación de la CTA para una interpretación y procedimientos seguros.

Palabras clave:
Anillo arterialTomografía computarizada y angiografíaLas ventanasAnatomía neuroradiológicaAnastomosis basilovertebral lateral y primitivaEnlace vertebrobasilar

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Área de la Ciencia:

  • Anatomía vascular
  • Embriología
  • Radiología

Sus antecedentes:

  • Las variaciones arteriales en la unión vertebrobasilar (VBJ) son poco comunes.
  • La anastomosis basilovertebral lateral primitiva persistente (PLBVA) es un remanente embriológico raro.

Objetivo del estudio:

  • Para describir y analizar dos casos raros de anillos arteriales en el VBJ.
  • Para explorar el origen embriológico y la importancia clínica de estos anillos arteriales.

Principales métodos:

  • Revisión retrospectiva de 505 tomografías computarizadas de la angiografía (CTA).
  • Reconstrucción multiplanar y representación del volumen en 3D para la caracterización anatómica.

Principales resultados:

  • Se identificaron dos casos (0,4%) de anillos arteriales en el VBJ.
  • Estos anillos representan segmentos persistentes del PLBVA, no verdaderas fenestraciones.
  • No se observó asimetría ni hipoplasia significativas de las arterias afectadas.

Conclusiones:

  • Los anillos arteriales VBJ son restos embriológicos raros de PLBVA.
  • Estas variaciones pueden complicar la interpretación radiológica y los procedimientos endovasculares.
  • La identificación precisa de la CTA es crucial para la seguridad del paciente y la precisión del diagnóstico.