Causes of Vertebral scalloping

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

4- mucopolysaccharidoses
5- acromegaly