RECIST 1.0:

• No specific recommendations

RECIST 1.1:

• Definitions provided for
  • Normal: short axis < 10 mm
  • Measurable (Target): short axis ≥ 15 mm
  • Non-measurable: short axis 10 to < 15 mm
• Target nodes measured in the short axis (perpendicular to longest diameter)
  • More reproducible and predictive of malignancy
• Short axes of target nodes to be added to the sum of longest diameters