Figure 2From: Lethal pneumatosis coli in a 12-month-old child caused by acute intestinal gas gangrene after prolonged artificial nutrition: a case report Macroscopic, histological and ultrastructural assessment of small intestine tissue. (a) Macroscopic picture of the oedematous intestinal wall with multiple submucosal and subserosal cysts. (b) Histological picture of the intestinal mucosa with areactive necrosis. (c) Gram stain of cysts with large rod-shaped bacteria. (d) Electron microscopic picture of a bacterium found in a submucosal cyst.Back to article page