H-shaped vertebra

Dr Varun Babu and A.Prof Frank Gaillard et al.

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 anemia, 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
Share article

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

Support Radiopaedia and see fewer ads

Cases and figures

  • Figure 1: mechanism illustration
    Drag here to reorder.
  • Case 1: lateral radiograph
    Drag here to reorder.
  • Lateral spine xra...
    Case 1: magnified view
    Drag here to reorder.
  • Case 2: AP view
    Drag here to reorder.
  • Case 3: PA chest radiograph - classic exam film
    Drag here to reorder.
  • Case 4
    Drag here to reorder.
  • Case 5
    Drag here to reorder.
  • Case 6
    Drag here to reorder.
  • Case 7
    Drag here to reorder.
  • Case 8
    Drag here to reorder.
  • Updating… Please wait.

     Unable to process the form. Check for errors and try again.

     Thank you for updating your details.