What is Vertebral scalloping ?
It is a concavity to the posterior (or less commonly anterior) aspect of the vertebral body when viewed in a lateral projection. A small amount of concavity is normal, as is concavity of the anterior vertebral body (see vertebral body squaring).Posterior scalloping causes:
1- achondroplasia
2- an intraspinal masses, such as:
-spinal astrocytoma
-ependymoma
-spinal schwannoma
-neurofibroma as seen in neurofibromatosis type 1
3- dural ectasia as seen in:
-neurofibromatosis type 1
-a hereditary connective tissue disorder such as
- Marfan disease
- Ehlers-Danlos disease
- osteogenesis imperfecta tarda
5- acromegaly