Fig. 7From: Pathogenic mechanisms of intestinal pneumatosis and portal venous gas: should patients with these conditions be operated immediately?Cut surface and microscopic findings of the small intestine for case 2. a-1, 2 Lots of IP were found at all layers, and some colonies of Clostridium perfringens (Welchii) were formed around IP (a-1 HE, a-2 Gram). b-1, 2 Other colonies of Clostridium perfringens (Welchii) were formed in areas slightly away from IP (Gram)Back to article page