Case 6. E. coli O-157 infection (20 y-o F)
         
   
Colon biopsy from a patient suffering from acute and severe diarrhea
   
         
   
Key words : 
enteroadhesive E. coli, enterohemorrhagic E. coli, O-157, bacillary dysentery    
         
   
zoonosis
   
     
 
     
Inflammation focally accentuated in the lamina propria (HE, low power)   Numbers of rods attached to the crypt epithelium in the region of active inflammation (HE, high power)
     
 
     
Numbers of rods attached to the crypt epithelium (HE, oil immersion)   Reference case 6A
Lethal enterohemorrhagic E. coli O-157 infection (8 y-o F).
Massive and diffuse hemorrhage in the autopsied colon (gross findings)
     
 
     
Reference case 6A
Lethal enterohemorrhagic E. coli O-157 infection (8 y-o F).
Marked hemorrhagic destruction of the autopsied colonic mucosa (HE)
  Reference case 6A
Lethal enterohemorrhagic E. coli O-157 infection (8 y-o F).
Numbers of rods clustered on the surface of the destroyed mucosa (HE)
     
 
     
Reference case 6B
Lethal enterohemorrhagic E. coli O-157 infection in the aged, manifesting hemolytic uremic syndrome (90 y-o F).
Marked fibrin thrombosis in the glomerulus and necrosis of the proximal renal tubules of autopsied kidney (HE)
  Reference case 6C
Bacillary dysentery (58 y-o F).
Marked hemorrhagic destruction of the autopsied colonic mucosa (HE)