H-shaped vertebra

H-shaped vertebrae, also known as Lincoln log vertebrae, are a characteristic finding of sharply delimited central endplate depression, classically seen in approximately 10% of patients with sickle-cell anaemia, and results from microvascular endplate infarction (figure 1)3.

It may occasionally be seen with other conditions such as Gaucher disease 1-2.

Inspired signs
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Article information

rID: 1406
Section: Signs
Synonyms or Alternate Spellings:
  • Lincoln log vertebra
  • H-shaped vertebrae
  • Step off vertebra
  • Lincoln log vertebrae
  • H shaped vertebra

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Cases and figures

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    Figure 1: mechanism illustration
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    Case 1: lateral radiograph
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    Lateral spine xra...
    Case 1: magnified view
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    Case 2: AP view
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    Case 3: PA chest radiograph - classic exam film
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    Case 4
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    Case 5
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    Case 6
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