578 



THE DIGESTIVE SYSTEM. 



Amyloid Degeneration. This usually occurs in connection with similar 

 degeneration in other organs, and is confined to the walls of the blood 

 vessels and the interstitial tissue. 



FIG. 351. FATTY INFILTRATION WITH ATROPHY OF THE PANCREAS. 



Hyaline degeneration involving and limited to the islands of Langer- 

 hans has been decribed by Opie and others in diabetes without other 

 marked lesions of the pancreas. ' 



Fat Necrosis. This is a peculiar lesion of the fat tissue, most frequent- 

 ly seen about the pancreas or between its lobules, but sometimes in fat 

 tissue in other parts of the body. White or yellowish nodules, varying 



1 Opie, Jour. Exp. Med., vol. v., p. 527, 1901 ; also Opie, "Diseases of the Pancreas," 

 in which may be found bibliography of structure, function, and lesions of the pancreas. 

 For a study of the development of the islands of Langerhans in human embryo see 

 Pearce, Am. Jour. Anat., vol. ii., 1903, p. 445. 



