Macroscopic types of superficial Early GI Neoplasias (Paris Classification)

Classification formulated by a group of international experts in the Paris workshop 2002 (Gastrointest Endosc 2003; 58 (6 suppl):S3-43. Review).
This classifies superficial neoplastic lesions and helps to predict the depth of their infiltration. All are type 0 lesion, i.e. superficial and potentially confined to the mucosa, with 3 basic types (I – III).
Personal comm. of Harold Jacob, MD PhD, Haddassah Med. Univ. Ein Karem, Jerusalem, IL
Fig. 1.2 (b) Air induced deformation (AID, left) indicates infiltration of MM; fixed deformation (right) predicts deep SM invasion.
Fig 1.2 (c) Lateral spreading types (LST) of colorectal neoplasia [Kudo S, et al. World J Surg 2000;24:1081-90]
From Chap. 1, Atlas of Early Neoplasias of the GIT, Springer New York 2019