Presentation
Conjugated hyperbilirubinemia. ? Alagille's syndrome. Exclude butterfly vertebrae.
Patient Data
Age: 6 weeks
Gender: Male
From the case:
Bone within a bone
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Lateral
Extensive abnormality throughout the spine with a bone-within-a-bone appearance.
No butterfly vertebra.
Case Discussion
There are many causes of the bone-within-a-bone appearance which include a normal variant in babies and growth arrest during chronic illness as well as autosomal dominant osteopetrosis.
In this case, no underlying cause was found and it was therefore considered to be a normal variant.
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