| |
Rosemont criteria |
| Parenchymal criteria |
Duct criteria |
| Major A |
Hyperechoic foci (>2 mm in length/width with shadowing) |
MPD calculi (echogenic structure[s] within the MPD with acoustic shadowing) |
| Major B |
Lobularity (≥13 contiguous lobules = 'honeycombing') |
|
| Minor |
Cyst (anechoic, round/elliptical with or without septations) |
Dilated duct (≥3.5 mm in body or >1.5 mm in tail)* |
| |
Hyperechoic strands (≥3 mm in at least 2 different directions with respect to the imaged plane) |
Irregular MPD contour (uneven or irregular outline and ectatic course) |
| Hyperechoic foci (>2 mm in length/width with no shadowing) |
Dilated side branch (>3 tubular anechoic structures each measuring ≥1 mm in width, budding from the MPD) |
| |
Hyperechoic MPD wall (echogenic, distinct structure >50% of entire MPD in the body and tail) |
