DYSENTERY AND DYSENTERIC DIARRHCEAS 1825 



it was necessary to have blood and mucus in the motions. Recent 

 investigations have, however, shown that certain cases of diarrhoea 

 and dysentery are brought about by the same organism, and 

 that a form of diarrhoea which may be called dysenteric diarrhoea 

 is only one phase of the clinical appearances of a dysentery, and 

 is aetiologically in no way different from what might be termed 

 a true dysentery, except in the severity of the symptoms and the 

 post-mortem appearances. Briefly, dysenteric diarrhoeas are 

 dysentery under a somewhat different clinical aspect — viz., the 

 stools do not contain blood and mucus, although the complaint 

 is due to the same organisms as true dysentery. Hence it is not 

 expedient to attempt to classify dysenteries by their clinical symp- 

 toms or by their post-mortem appearances, and any rational classi- 

 fication and description of the complaint must be based on the 

 causation. 



We therefore classify dysenteries and dysenteric diarrhoeas into : — 



A. Dysenteries caused by Animal Parasites: — 



I. The Protozoal Dysenteries. 

 II. The Platyhehninthic Dysenteries. 



III. The Nemat helminthic Dysenteries. 



IV. The Arthropodic Dysenteries. 



B. Dysenteries caused by Bacteria. 



C. Pseudo-dysenteries. 



By the last expression we mean such forms of the complaint as 

 may be due to the irritation of fish-bones, glass, cancer, or inflam- 

 mations of organs adjoining the alimentary canal. 



A. DYSENTERIES CAUSED BY ANIMAL PARASITES. 



I. THE PROTOZOAL DYSENTERIES. 



The protozoal dysenteries are classified into: — 



{a) Amoebic Dysentery. 

 {b) Laveranic Dysentery, 

 (c) Leishmanic Dysentery. 

 {d) Ciliar Dysenteries. 

 {e) Balantidic Dysentery, 



(/) Spirochaetic Dysentery. 

 (g) Entoplasmic Dysentery. 



With regard to the term ' amoebic dysentery,' we prefer this term 

 as less likely to be altered rather than the more correct nomen- 

 clature Loeschial dysentery or Loeschiasis. 



(a) Amoebic Dysentery. 

 Synonyms. — Loeschiasis, Loeschial dysentery, Entamoebiasis, Amoe- 

 biasis, Entamoebic dysentery, Amoebic enteritis, Amoebic colitis. 

 French: Dysenteric Amibienne, Dysenteric a Amibes. Italian : Dis- 

 senteria Amebica. German : Amobenruhr. 



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