URINARY AMCEBIASIS 



1931 



McDonagh, who first used antimony in bilharziosis in 1912, prefers colloidal 

 antimony, which he gives intravenously and intramuscularly in doses of 

 o*5 c.c. to 2 c.c. of a 0*2 per cent, emulsion. 



Salvarsan has been used by several observers, with doubtful results. 



Prophylaxis. — As the method of infection is unknown, it can only 

 be suggested that bathing in polluted or possibly polluted water is 

 dangerous, and drinking-water must be carefully boiled and filtered. 

 The urine of persons suffering from the disease should be mixed 

 with some disinfectant before being disp®sed of. 



URINARY AMCEBIASIS. 



Definition. — Urinary amoebiasis is the infection of the urinary 

 tract with amoebae, which most commonly arc Loeschia histolytica 

 (Schaudinn, 1903). 



Fig. 779. — Precystic Stage of Loeschia histolytica (Schaudinn, 1903, 

 emandavit Walker, 1911), as seen in Urine in a Sudan Case. Fresh 

 AND Unstained Specimen. (X 1,500 Diameters.) 



(Microphoto graph. This illustration may be examined with advantage 

 by means of a reading lens.) 



Historical. — In considering the history of urinary amoebiasis, it is 

 convenient to divide the subject into infections low down in the 

 urinary tract, into those which are situate high up, and into those 

 of which the site is unknown. 



Low Down in the Urinary Tract.- — Amoebae were first described in 

 urine and in vaginal secretion by Baelz in 1883, when he named the 

 particular species which he saw Amoeba urogenitalis Baelz, 1883. 

 This amoeba was provided with a synonym by R. Blanchard in 1885, 

 when he called it Amoeba vaginalis R. Blanchard, 1885. It measured 

 some 23-50 microns in diameter, was actively motile, extruded short 

 and blunt pseudopodia, possessed granular cytoplasm containing 



