TRICHOMONAS ELONGATA 



G57 



possesses four flagella, as noted by Goodey and Wellings (1917), and does 

 not differ as regards size and structure from that of the intestine. 

 Jepps (1923a.) believes that the oral form is more actively amoeboid than 

 that of the intestine, but though it is stated that the organism agrees 

 with the one described by Goodey and Wellings, only three flagella are 

 figured. 



Trichomonas have been noted by the writer (1920) in pus exuding from 

 the follicles of the tonsil. Several observers, including Schmidt (1895) 

 and Artault (1898), have seen the flagellates in sputum coughed up from 

 the lung, while Strube (1898), Cohnheim (1903), Zabel (1904), Schmidt 



Fig. 269. — Trichomonas elongata from the Human Mouth (x 4,100). 

 (After Goodey and Wellings, 1917.) 



(1904), and Eosenfeld (1904) observed them in stomach contents in cases 

 of carcinoma and other conditions. They have also been recorded as 

 occurring in pleural exudate by Litten (1886) and Roos (1893). Parisot 

 and Simonin (1921) observed the flagellates in large numbers in the 

 expectorations of a case of gangrene of the lung. At post-mortem they 

 were present in abundance in the gangrenous areas, but not in others. 

 These forms are certainly identical with the oral species, though the name 

 T. pulmonalis has been given to the form seen in sputum by Schmidt 

 (1895). The invasion of the lung is comparable with the spread of spiro- 

 chsetes and bacteria to this organ from the mouth when conditions become 

 favourable to their growth. 



I. 42 



