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Lumbarized S1 butterfly vertebra

Case contributed by Roberto Schubert
Diagnosis certain

Presentation

Lumbar scoliosis, chronic back pain. History of juxtafacet cyst removal.

Patient Data

Age: 60 years
Gender: Female
This study is a stack
Coronal
STIR
This study is a stack
Axial
T2
This study is a stack
Axial
T1
This study is a stack
Sagittal
T1
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Info

Left convex lumbar scoliosis caused my a malformation of the 1st sacral vertebra (butterfly vertebra). The left smaller "wing" of the butterfly forms a nearthrosis with the os sacrum. Instead of a normal intervertebral disc, there is an X-shaped synchondrosis in the coronal plane, bordered by the 5th lumbar, the right and left hemivertbrae of the butterfly S1, and the 2nd sacral vertebra.

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