OIDIOMYCOSIS 207 



white and adhere to the agar. In Bouillon. It develops slowly 

 on the surface of the medium. Fluffy tufts, or balls, are formed, 

 that sink to the bottom of the tube. The growth is whitish. 



Pathogenesis. For rabbits and guinea pigs this organism is 

 pathogenic, producing abscesses, tubercles, induration, etc. It is 

 a pus forming organism. 



In man, the disease picture is like that of tuberculosis. It causes 

 abscesses, adenitis, indurations of the skin, endocarditis, and pleuri- 

 tic inflammation. Many grayish tubercles were found that resem- 

 bled the lesions produced by the tubercle bacillus. Cavity for- 

 mation has been described. 



This organism acts as a secondary infecting agent in tuberculosis 

 of the lungs. Tuttle reviews twelve cases, all of which were fatal. 



In examining sputum from tubercular cases, in which the typical 

 bacilli are not found, it is well to look for the streptothrix by staining 

 with Gram's stain. 



Leptothrix Buccalis. Long unbranched threads that grow in 

 the walls of the pharynx, causing very sore throat. This organism 

 has not been cultivated, hence, very little is known of it. It is not a 

 member of the actinomyces, because it is not branched, nor is it a 

 streptothrix for the same reason. 



Leptothrix Vaginalis. Is another variety that has been found 

 growing in the vagina. Nothing is known of its pathogenicity, nor 

 of its cultural properties. 



BLASTOMYCOSIS. 

 OIDIOMYCOSIS. 



Oidium Albicans. Thrush, Soor. A member of the higher 

 order of the fungi. This organism resembles both a yeast and a 

 mould, because it exhibits characteristics that are common to 

 both of these two forms. It exhibits budding yeast cells and 

 budding mycelia. The yeast cell is 6/* long and i/i wide, but the 

 cells vary very much in length and width. 



