Saurin 2004 adaptation of Spigelman 1989 to the Vienna classification. Number, size, and histology are unchanged. Dysplasia is LGD = 1 point, HGD = 3 points (no 2-point moderate).
Polyp number
Largest size
Histology
Dysplasia (Vienna)
LGD 1 point, HGD 3 points. No 2-point moderate grade
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