Try it
Radiology · Ultrasound
Sample itemWhat ultrasound appearance is expected behind a simple fluid-filled cyst?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
C. Posterior acoustic enhancement
Fluid attenuates little sound, so echoes deep to a simple cyst appear brighter than adjacent tissue, producing posterior acoustic enhancement.
Option by option
A. A double-wall gastrointestinal sign
The double-wall sign is unrelated to simple cyst physics.
B. Dense posterior acoustic shadowing
Shadowing is more typical of stones or dense calcification.
C. Posterior acoustic enhancement (correct)
Correct: excellent sound transmission makes tissue deep to fluid brighter.
D. Reverberation from bowel gas
Reverberation commonly occurs with gas or metal interfaces.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.