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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 disease, and results from microvascular endplate infarction (Figure 1) 3.
It may occasionally be seen with other conditions such as Gaucher disease 1,2.
- 1. Schwartz AM, Homer MJ, Mccauley RG. "Step-off" vertebral body: Gaucher's disease versus sickle cell hemoglobinopathy. AJR Am J Roentgenol. 1979;132 (1): 81-5. AJR Am J Roentgenol (abstract) - Pubmed citation
- 2. Lenchik L, Rogers LF, Delmas PD et-al. Diagnosis of osteoporotic vertebral fractures: importance of recognition and description by radiologists. AJR Am J Roentgenol. 2004;183 (4): 949-58. AJR Am J Roentgenol (full text) - Pubmed citation
- 3. Lonergan GJ, Cline DB, Abbondanzo SL. Sickle cell anemia. Radiographics. 21 (4): 971-94. Radiographics (full text) - Pubmed citation