New tomographic contribution to characterizing mesosaurid congenital scoliosis

The presence of a pathology in the vertebral column of the early Permian mesosaurid specimen ZPAL R VII/1, being one of the oldest amniotic occurrences of congenital scoliosis caused by a hemivertebra, was recently recognized. Here we provide CT data to further characterize the phenomenon. The affec...

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Bibliographic Details
Published in:PloS one 2019-02, Vol.14 (2), p.e0212416-e0212416
Main Authors: Szczygielski, Tomasz, Dróżdż, Dawid, Surmik, Dawid, Kapuścińska, Agnieszka, Rothschild, Bruce M
Format: Article
Language:English
Subjects:
Amniotic band syndrome
Animals
Biology and Life Sciences
Brazil
Earth Sciences
Ecosystem
Fossils - anatomy & histology
Fossils - history
Genetic disorders
Health aspects
History, Ancient
Medicine and Health Sciences
Reptiles - abnormalities
Research and Analysis Methods
Resveratrol
Scoliosis
Scoliosis - congenital
Scoliosis - history
Scoliosis - veterinary
Spine - abnormalities
Spine - diagnostic imaging
Tomography, X-Ray Computed
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Summary:The presence of a pathology in the vertebral column of the early Permian mesosaurid specimen ZPAL R VII/1, being one of the oldest amniotic occurrences of congenital scoliosis caused by a hemivertebra, was recently recognized. Here we provide CT data to further characterize the phenomenon. The affected hemivertebra is wedged (incarcerated) between the preceding and succeeding vertebrae. The neural canal is misshapen but continuous and the number of dorsal ribs on each side of the specimen corresponds with the number of the vertebrae, documenting its congenital (homeobox-related) derivation.
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0212416