Figure 2: Analysis of the disposition of the muscularis mucosae of laterally spreading tumors (LST). The length of the lesion in a straight line (a: green line) and the length of the muscularis mucosa (MM) (b: red line) were measured digitally. (a) The irregular disposition of the MM of LST-granular type was reflected in greater ratios between both measures (b/a). (b) In contrast the MM of LST-NGs were flat as both lengths (a, b) were nearly similar.