Figure 2
From: A Differential Approach to Form and Site of Peptic Ulcer
Morphology of a gastric ulcer in the antrum. L. Aschoff described the form of gastric ulcer as Reibungsform, assuming frictional forces to secondarily deform the ulcer. Ischaemic necrosis due to an occluded vessel in an end-artery model should typically produce cylindrical ulcers of the gastric wall. Aschoff found that, in reality, gastric ulcers express a steep edge cranially and run out shallowly distally - often producing the form of a staircase. Reproduction of Fig. 515; p. 760 from Aschoff11.
