SCHISTOSOMIASIS 



253 



The recto-vesical pouch is almost obHteraled. 



The outer coats of the intestine are very tough, almost cartilaginous. 

 The rectum may be three-quarters of an inch thick and adherent to the 



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Schistosoma japonicum : section through the gut of a Chinaman showing eggs, x 58. 



(After Calto.) 



bladder. The mucous membrane of this organ is not usually affected 

 as in the case of S. haematobium. 



There may be haemorrhagic infiltration of the dura mater, with 

 wedge-shaped sclerosed areas of brain matter (Katayama). 



The eggs may be found in the mesentery, mesenteric glands, 

 mucous membrane of the gall-bladder, pancreas, pylorus, lungs and 

 brain. 



