Gil-Nagel A, Morlán L, Balseiro J, González Preciado J L, Martínez Martín P
Sección de Neurología, Hospital Central de la Cruz Roja, Madrid.
Neurologia. 1992 Mar;7(3):113-5.
A proatlas, a type of manifestation of occipital vertebrae, was found in a female aged 64 with drop attacks. X-ray films and computed tomography of the craniocervical region disclosed the malformation. Magnetic resonance imaging of the same area and the posterior fossa discarded the presence of associated neural involvement, but gave no additional information about the nature of the process. Doppler-ultrasonographic study of the vertebral arteries and X-rays of the flexed and extended cervical spine failed to demonstrate the mechanism by which drop attacks were elicited.
在一名64岁患有猝倒发作的女性中发现了原寰椎，这是枕椎的一种表现形式。颅颈区域的X线片和计算机断层扫描显示了这种畸形。同一区域和后颅窝的磁共振成像排除了相关神经受累的情况，但未提供有关该病变性质的更多信息。椎动脉的多普勒超声检查以及颈椎屈伸位X线片未能显示引发猝倒发作的机制。
