UMEM Educational Pearls

Ultrasound findings of appendicitis

  • noncompressible appendix with an outer diameter in any portion > 6mm
  • appendicolith
  • hyperechoic periappendiceal fat
  • loss of echogenic submucosal layer
  • increased blood flow of the appendix on color Doppler ultrasound scanning
  • periappendiceal collections seen in the absence of a visualized abnormal appendix

Ultrasound images: