A classical expansile lytic lesion in the transverse process of a vertebra is seen in:
Osteosarcoma
Aneurysmal bone cyst
Osteoblastoma
Metastasis
(b) Aneurysmal bone cystLytic Lesion in Posterior Element of Vertebrae (i.e. spinous process, transverse process, and pedicle) Expansile and Purely lytic, Aneurysmal Bone Cyst, Non-expansile and partly or extensively ossified, Osteoblastoma Body of vertebra is involved in GCT
Metastatic Bone Disease