Whack-a-
Nodule
Click nodules that need biopsy — spare the ones that don't
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0
Score
Lives
1
Level
60
Seconds
THYROID
15 MHz
LONG
DEPTH 3.0 cm
Level 1 — Intern
Whack-a-Nodule
Click nodules that need biopsy.
Spare the ones that don't. You have 3 lives.
Start scanning
Game Over
0
Final score
Scan again
TR4–5 · Biopsy indicated — click it
TR1–3 · Observe — do not click
ACR TI-RADS — FNA size thresholds
TR1
Benign — no FNA
TR2
Not suspicious — no FNA
TR3
Mildly suspicious — FNA if ≥ 2.5 cm
TR4
Moderately suspicious — FNA if ≥ 1.5 cm
TR5
Highly suspicious — FNA if ≥ 1.0 cm