“…Vertebral malformations attributed to disordered assimilation or fusion include butterfly vertebra and dysplastic spondylolysis [ 30 ].…”
Section: Embryologymentioning
confidence: 99%
“…Moulding of adjacent vertebral bodies towards the midsagittal constriction may or may not be present. Although usually asymptomatic, this can be mistaken for compression, burst or wedge fractures on imaging [ 30 ]. Fig.…”
A variety of structural developmental anomalies affect the vertebral column. Malformed vertebrae can arise secondary to errors of vertebral formation, fusion and/or segmentation and developmental variation. Malformations can be simple with little or no clinical consequence, or complex with serious structural and neurologic implications. These anomalies can occasionally mimic acute trauma (bipartite atlas versus Jefferson fracture, butterfly vertebra versus burst fracture), or predispose the affected individual to myelopathy. Accurate imaging interpretation of vertebral malformations requires knowledge of ageappropriate normal, variant and abnormal vertebral morphology and the clinical implications of each entity. This knowledge will improve diagnostic confidence in acute situations and confounding clinical scenarios.This review article seeks to familiarize the reader with the embryology, normal and variant anatomy of the vertebral column and the imaging appearance and clinical impact of the spectrum of vertebral malformations arising as a consequence of disordered embryological development.Teaching points
• Some vertebral malformations predispose the affected individual to trauma or myelopathy.
• On imaging, malformed vertebrae can be indistinguishable from acute trauma.
• Abnormalities in spinal cord development may be associated and must be searched for.
• Accurate interpretation requires knowledge of normal, variant and abnormal vertebral morphology.Electronic supplementary materialThe online version of this article (10.1007/s13244-018-0598-1) contains supplementary material, which is available to authorized users.
“…Vertebral malformations attributed to disordered assimilation or fusion include butterfly vertebra and dysplastic spondylolysis [ 30 ].…”
Section: Embryologymentioning
confidence: 99%
“…Moulding of adjacent vertebral bodies towards the midsagittal constriction may or may not be present. Although usually asymptomatic, this can be mistaken for compression, burst or wedge fractures on imaging [ 30 ]. Fig.…”
A variety of structural developmental anomalies affect the vertebral column. Malformed vertebrae can arise secondary to errors of vertebral formation, fusion and/or segmentation and developmental variation. Malformations can be simple with little or no clinical consequence, or complex with serious structural and neurologic implications. These anomalies can occasionally mimic acute trauma (bipartite atlas versus Jefferson fracture, butterfly vertebra versus burst fracture), or predispose the affected individual to myelopathy. Accurate imaging interpretation of vertebral malformations requires knowledge of ageappropriate normal, variant and abnormal vertebral morphology and the clinical implications of each entity. This knowledge will improve diagnostic confidence in acute situations and confounding clinical scenarios.This review article seeks to familiarize the reader with the embryology, normal and variant anatomy of the vertebral column and the imaging appearance and clinical impact of the spectrum of vertebral malformations arising as a consequence of disordered embryological development.Teaching points
• Some vertebral malformations predispose the affected individual to trauma or myelopathy.
• On imaging, malformed vertebrae can be indistinguishable from acute trauma.
• Abnormalities in spinal cord development may be associated and must be searched for.
• Accurate interpretation requires knowledge of normal, variant and abnormal vertebral morphology.Electronic supplementary materialThe online version of this article (10.1007/s13244-018-0598-1) contains supplementary material, which is available to authorized users.
“…The presence of sclerotic bone along the suspected cleft is diagnostic. 50 Os Odontoideum. An os odontoideum consists of an ossicle-like odontoid process unconnected to the body of the axis.…”
Section: Failure Of Chondrification or Ossificationmentioning
Incidental vertebral lesions on imaging of the spine are commonly encountered in clinical practice. Contributing factors include the aging population, the increasing prevalence of back pain, and increased usage of MR imaging. Additionally, refinements in CT and MR imaging have increased the number of demonstrable lesions. The management of incidental findings varies among practitioners and commonly depends more on practice style than on data or guidelines. In this article we review incidental findings within the vertebral column and review management of these lesions, based on available Class III data.
“…Este defecto ocurre entre la 3. a a 6. a semana de gestación 2,3 y se localiza con mayor frecuencia a nivel lumbar [5][6][7] . Se asocia a otras alteraciones congénitas como la hipo/aplasia mülleriana y los síndromes de Jarcho-Levin, Pfeiffer, Crouzon, Alagille y Kallmann, aunque también puede ocurrir de forma aislada 1,2,7,8 . Los pacientes habitualmente son asintomá-ticos y esta malformación suele detectarse de forma incidental, pero puede alterar la biomecánica de la columna causando dolor lumbar atípico o aumentando la posibilidad de herniación discal [5][6][7] .…”
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