THE (ESOPHAGUS. 



365 



THE SALIVARY GLANDS. 



Inflammation of the salivary glands may occur in the course 

 of various acute infectious diseases, as septicaemia, typhoid, 

 etc. ; or result from a special 

 infection, when it is known as FIG. 163. 



mumps the parotid gland being 

 most frequently affected. 



Mumps rarely terminates in 

 the formation of an abscess in 

 the affected gland, while this is 

 the characteristic tendency in 

 the secondary infections, or 

 metastatic mumps. 



THE (ESOPHAGUS. 



Inflammation of the oesophagus 

 may be due to ingestion of acids 

 or alkalies, food or drink too 

 hot or too cold, the lodgment 

 of foreign bodies, etc. The in- 

 flammatory process may end in 

 ulceration and cicatricial stenosis 

 (Figs. 159 and 160). 



Cylindrical dilatation of the 

 oesophagus results from long- 

 continued stenosis. Sacculated 

 dilatations result either from, 

 pressure from within or traction 

 from without, as by contracting 

 adhesions (Figs. 161 and 162). 



Squamous-celled carcinoma is 

 the most frequent affection of 

 the oesophagus (Fig. 163). It generally occurs in the lower 

 third, though it may be found in any part, and gradually 

 produces a complete stenosis. 



Cancer of oesophagus (Warden Mu- 

 seum). 



