Figure 2

Examples of bone lesions (A) responsible for disease progression and bone condensations (B–D) are interpreted as non-progression. (A) is a bone lesion of the lumbar L4-L5 vertebra, (B) is a condensation of a lytic lesion of the right iliac wing, (C) is a bone condensation of a thoracic vertebra, and (D) is a non-pathologic T12 vertebrae compression.