TABLE 1.
Endoscopic ultrasound criteria for the diagnosis of chronic pancreatitis
| Conventional criteria | Rosemont criteria |
|---|---|
| Parenchymal criteria | Major criteria A |
| Hyperechoic foci Hyperechoic strands |
Hyperechoic foci (>2 mm in length/width with shadowing) |
| Hypoechoic lobules, foci or areas | Major duct calculi (echogenic structure[s] within the MPD with acoustic shadowing) |
| Cyst | |
| Major criteria B | |
| Lobularity (≥3 contiguous lobules = ‘honeycombing’) | |
| Duct criteria | |
| Irregular duct contour | Minor criteria |
| Visible side branches Hyperechoic duct margin |
Cyst (anechoic, round/elliptical with or without septations)* Dilated duct (≥3.5 mm in body or >1.5 mm in tail)* |
| Dilated main duct Stone |
Irregular duct contour (uneven or irregular outline and ectatic course) |
| Dilated side branch (>3 tubular anechoic structures each measuring ≥1 mm in width, budding from the MPD)* | |
| Hyperechoic duct wall (echogenic, distinct structure >50% of entire MPD in the body and tail) | |
| Hyperechoic strands (≥3 mm in at least 2 different directions with respect to the imaged plane) | |
| Hyperechoic foci (>2 mm in length/width that are nonshadowing)* | |
| Lobularity (>5 mm, noncontiguous lobules) |