Aneurysmal bone cysts of the dorsal spine.

Aneurysmal bone cyst is an uncommon but interesting condition, more so when it involves the vertebrae. Three cases of aneurysmal bone cysts of the dorsal spine, suspected on clinicoradiological findings and confirmed by histopathology, are reported in this paper. The authors believe that when the disease affects the pedicles or transverse processes of a vertebra, the plain roentgenographic findings are quite typical of the disease, and a confident radiological diagnosis is possible in the majority of cases.