IOTW 5/03/21

27 y/o F p/w right flank pain

  1. What is the finding labeled “A”?
    • These adjacent hyperechoic structures with shadowing are representative of intrarenal calculi. CT demonstrated that this was actually a partial staghorn calculus.
  2. How would you describe the structure labeled “B” in sonographic terms? What do you think this is?
    • This is a hypoechoic complex round mass with posterior acoustic enhancement containing internal debris consistent with perinephric abscess.
  3. How would you grade the hydronephrosis on image “C”?
    • Notice that the dilated calyces are beginning to form the “bear paw” sign. This suggests that this is at least high-grade mild hydronephrosis.

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