BLASTOMYCOSIS 



561 



Small miliary abscesses were present in the rete and 

 corium, in the pus of which the parasitic cells were 

 observed. These were usually in pairs of unequal size, 

 the largest measuring about 16 /A, surrounded by a well- 

 defined capsule, and containing a granular protoplasm in 

 which a vacuole was present. Clinically, the case had 

 been regarded as one of scrofuloderma, but no tubercle 

 bacilli could be found. 



Numerous cases of blastomycetic dermatitis have now 

 been recognised, and several instances of general systemic 

 blastomycetic infection have been recorded. 



Granulomatous tumours occurring in epidemics among 

 horses in Japan, France, and Italy are also caused by 

 Blastomycetes. 



Stoddard and Cutler 1 have critically examined the condition 

 known as Blastomycosis. They consider that this is caused by 

 three classes of organisms, viz. O'idia, Torulw, and Coccidioides. 

 The last named (not to be confounded with Coccidium) is an 

 ascomycetous fungus, C. immitis. They give the following, 

 among others, as points of distinction between the three : 



1 Studies from the Rockefeller Institute (Reprints), vol. xxv, 1916, p. 1. 

 M.B 36 



