Fig. 5.

A, B – 65-year-old man, CT (bone window and soft tissue window) showed bone destruction in L4, and was replaced by soft tissue mass, which penetrated through the cortex with paravertebral growth (indicated by arrow); C, D – 41-year-old man, CT showed peripheral soft tissue mass in the right appendix sector in T5, encysting the right transverse process and pedicle of vertebral arch, adjacent ribs were also involved (indicated by arrow); E, F – 39-year-old man, CT showed peripheral soft tissue mass in the left appendix sector in L3; mass was poorly defined; it invaded the left vertebral lamina and spinous process, and also penetrated through the vertebral lamina into the vertebral canal; narrowed spinal canal was observed (indicated by arrow); G, H – Patient observed with a well-defined soft tissue mass in the right sacrum (indicated by arrow)