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Copyright ©2010 Baishideng.
World J Gastroenterol. Jun 21, 2010; 16(23): 2841-2850
Published online Jun 21, 2010. doi: 10.3748/wjg.v16.i23.2841
Table 1 Evolution of endoscopic ultrasound criteria for chronic pancreatitis
Lees[6] (1986)Wiersema et al[2] (1993)Sahai et al[8] (1998)Catalano et al[9] (2009)1Histological correlation
Number of criteriaQualitative1193 major; 6 minor
ParenchymalXReduced echogenic fociXX
Heterogeneity
Strongly echogenic fociEchogenic foci (> 3 mm)Hyperechoic fociHyperechoic foci without shadowing (minor). Echogenic structures ≥ 2 mm in length and width with no shadowingFocal fibrosis
Hyperechoic foci with shadowing (major A). Echogenic structures ≥ 2 mm in length and width that shadowCalcifications in side-branches
Echogenic bandsXHyperechoic strandsStranding (minor). Hyperechoic lines of ≥ 3 mm in length in at least 2 different directions with respect to the imaged planeFibrotic bands
CavitiesCysts (> 3 mm)CystsCysts (minor). Anechoic, rounded/elliptical structures with or without septationsPseudocysts
Accentuation of lobular architectureAccentuation of lobular patternParenchymal lobularityLobularity with honeycombing (major B). Well-circumscribed, ≥ 5 mm structures with enhancing rim and relatively echo-poor center, with ≥ 3 contiguous lobulesEdema separated by fibrotic bands
Lobularity without honeycombing (minor). Well-circumscribed, ≥ 5 mm structures with enhancing rim and relatively echo-poor center, with noncontiguous lobules
EnlargementXXX
DuctXNarrowingXX
Increase in caliberDilationMPD dilationMPD dilation (minor). ≥ 3.5 mm in body or > 1.5 mm in tailObstructed duct
Irregularity of the lumenIrregular contourIrregular MPD marginsIrregular MPD contour (minor). Uneven or irregular outline and ectatic courseDuctal fibrosis and strictures
Increase echogenicity of duct wallDuct wall echogenicityHyperechoic MPD marginsHyperechoic MPD margin (minor). Echogenic, distinct structure greater than 50% of entire MPD in the body and tailPeriductal fibrosis
Intraluminal echoesCalculiShadowing calcificationsMPD calculi (major A). Echogenic structures within MPD with acoustic shadowingCalcifications in the main duct
Visualization of side branchesSide-branch dilationVisible side-branchesDilated side branches (minor). 3 or more tubular anechoic structures each measuring ≥ 1 mm in width, budding from the MPDSide-branch ectasia
Strictures with dilationXXX
Main or branch duct disruptions with cystXXX