Features

• Diffuse Parenchymal Pathology on Unenhanced Images
  • Hypodense Parenchyma
  • Hyperdense Parenchyma
  • Cirrhosis and Cirrhotic Mimicks
• Perfusion Abnormalities
  • Diffuse
  • Regional / Perilesional
• Focal Lesions
  • Features on Unenhanced Images
    • Gas
    • Fat
    • Fluid
    • Hyperdense
    • Calcium or Contrast Density
  • Enhancement Features
    • No Enhancement
    • Dominant Solid Enhancing Components
      • On Arterial Phase
        • Hypodense
        • Isodense
        • Hyperdense
      • On Portal Venous Phase
        • Hypodense
        • Isodense
        • Hyperdense
      • On Delayed Phase
        • Hypodense
        • Isodense
        • Hyperdense
    • Special Enhancement Features
      • Homogeneous
      • Continous Ring Enhancement
      • Peripheral Nodular (Discontinous) Enhancement
      • Centripetal Enhancement
      • Follows Blood Pool Enhancement
      • Hypodense Rim
        • On Arterial Phase
        • On Portal Venous Phase
        • On Equilibrium Phase
      • Feeding/Draining Vessel
      • Septations
      • Scar
  • Contour/Shape
    • Smooth
    • Lobulated
    • Geographic
    • Irregular
    • Linear
    • Wedge/Triangular
  • Organization
    • Single
    • Dominant Lesion With Satellites
    • Multifocal
    • Infiltrative or Diffuse
  • Location/Distribution
    • Capsular/Perihepatic
    • Subcapsular
    • Periportal
    • Intrabiliary
    • Central/Hilar
    • Segmental/Lobar
    • Adjacent to Gallbladder Fossa
    • Adjacent to Falciform Ligament
    • Segment 3 - Portal Fissure
  • Effect on Adjacent Structures
    • No Mass Effect
    • Displacement
    • Capsular Retraction
    • Bile Duct Obstruction
    • Venous Invasion