Mucosal necrosis of the small intestine in myopathy, encephalopathy, lactic acidosis, and stroke-like episodes syndrome

Figure 2 Macroscopic findings of resected tissue and specimen. A: Macroscopic findings of resected tissue. The specimen measured 150 cm in length. There was diffuse mucosal necrosis in two thirds of oral-sided area, and mottled necrosis in the remaining area. Arrow: Oral stump; B: Microscopic findings of the resected specimen. Coagulation necrosis of the mucosa and lamina propria was observed (arrows). The external longitudinal layer of the muscularis propria was partially diminished (arrow heads). Hematoxylin and eosin, Bar = 500 μm.