Case 11. 

Clostridium butyricum-induced gas gangrene accompanying pneumatosis cystoides intestinalis (35 y-o M)
　 　 　 　
　 Small bowel surgically resected for mesenteric arterial thrombosis in a patient of severe diabetes mellitus, accompanying pneumatosis in the bowel wall and portal vein (alive for 6 years after surgery) 　
　 　 　 　

　

 　
Capsule formation by the spore-forming rods in the gut wall (colloidal iron)