Question 478 · LEK · Kidney cysts

A typical, benign kidney cyst on an ultrasound scan is:

  1. A. anechoic and thin-walled.
  2. B. isoechoic.
  3. C. hyperechoic.
  4. D. thick-walled with septa.
  5. E. an area of mixed echogenicity.
Hint

A simple cyst contains clear fluid; think how fluid appears on ultrasound and which wall features suggest a benign lesion.

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