THE DIGESTIVE SYSTEM. 529 



The possibility should be borne in mind that from tuberculous "ade- 

 noids" tubercle bacilli may pass through the lymph- channels to the 

 bronchial lymph -nodes, and that the pharynx may thus be a mor^mipor- 

 taut portal of entry in tuberculosis than has be6u hitherto recognized. 



TUMORS. 



Fibromata grow from the periosteum of the bones at the base of the 

 skull, and project into the cavity of the pharynx and posterior uares in 



FIG. .305. "ADENOID" POLYP OF PHARYNX. 



the form of large polypoid tumors. Soft polypoid tumors, consisting 

 largely of loose succulent connective tissue and lymphatic tissue and 

 often called " adenoid polyps" (see Fig. 305), are of frequent occurrence. 

 They are usually to be regarded rather as hyperplasise than true tumors. 

 Hairy polyps of the pharynx have been described by Arnold ' and others. 



Ziegler's Beitr., Bd. xxvi., p. 611, 1899; also Friedemann, ibid,, Bd. xxviii., p. 66, 1900. 

 Also bibliography in Wood, Bull. Univ. Penna., vol. xvi., 1903, p. 368. See also ref- 

 erence to Orober, p. 436. 



For general bibliography on the tonsils see Ullman, Medical News, January 26th, 

 1901, p. 137. 



1 Arnold, Virchow's Arch., Bd. cxi., p. 176, bibliography. 

 34 



