Macroscopic types of superficial Early GI Neoplasias (Paris Classification)

From Chap. 1, Atlas of Early Neoplasias of the GIT, Springer New York 2019
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