Classification of Gastric Carcinoma Classification: Based on— 1. Depth of invasion 2. Macroscopic growth pattern 3. Histologic subtype Based on depth of invasion Early gastric carcinoma 2. Advanced gastric carcinoma Based on the macroscopic growth pattern Type I (exophytic /polypoid/fungating) Type II (flat or depressed) Type III ( excavated) Lauren classification depending on the h istologic subtype 1.Intestinal type 2.diffuse type