OF THE ALIAIENTARY TRACT 83 



ous, variable numbers of leucocytes, largely polynu- 

 clears, red blood corpuscles, and, particularly, large 

 phagocytic endothelioid cells. These macrophages 

 are practically non-motile as seen in the stool and 

 contain ingested cells or cell particles. Whole 

 leucocytes and red blood corpuscles or remnants of 

 these ingested cells may appear in these phagocytes. 







Fig. 15. — Stool of Bacillary Dysentery. 



Mononuclear phagocytes and leucocytes. (U. S. Army Medical 

 Museum No. 41,158. Also from Haughwout and Callender.) 



All phases of degeneration and disintegration of these 

 cells as well as of leucocytes may be seen. The cel- 

 lular content of the stool of bacillary dysentery is con- 

 spicuous. 



On the contrary the stool of uncomplicated amoebic 

 dysentery has few cells, possibly a few mononuclears 

 and an occasional polynuclear. The body of tissue 



