Vertebral Scalloping: Differential Diagnosis #26
Vertebral scalloping is typically caused by dural ectasia. The scalloping typically occurs posteriorly, but rarely may occur anteriorly as well. The mnemonic AMEN can be used to recall the common causes of this finding:
| Disease | Notes | |
| A | Acromegaly Achondroplasia Ankylosing spondylitis | scalloping in acromegaly secondary to hypertrophy scalloping in achondroplasia due to small spinal canal |
| M | Masses Mucopolysaccharidoses | e.g. Morquio's, Hurler's |
| E | Ehlers-Danlos syndrome | |
| N | Neurofibromatosis |
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| Sagittal T2-weighted FSE MR Spine of a woman with achrondroplasia Source: Radiology |
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