TUMOKS. 



321 



oma is characterized by a greenish color, the nature of which is not 

 known. ' 



ENDOTHELIOMA. (Endothelial Sarcoma.) 

 Under the name endothelial sarcomata or endotheliomata are grouped a 



FIG. 163. ENDOTHELIOMA OF THE PAROTID GI.AND. 

 Showing an early phase of cell proliferation in the lymph-spaces. 



FIG. ItU. ENDOTHELIOMA OF UPPER JAW. 



Showing dense connective tissue surrounding the blood-vessels between the reticular endothelial cell 



masses. 



number of tumors which on the one hand are closely related to the sar- 

 comata in genesis, and in some cases in appearance, while on the other 



1 For the relationship of cliloroma to leukaemia see Dock, American Journal of the 

 Medical Sciences, August, 1893, bibliography. 

 21 



