330 



LEECHES 



In the circumnodular tissue pathologic conditions exist, 

 consisting of certain areas of tissue necrosis. 



Fig. 85. A sectioyi through a tiodule shoiving its dense texture, with 

 a portion of its peripheral zone made up ofhyphcc ivith leucocytes inter- 

 spersed. Methylene blue and eosin stain. No. 4 ocular, Smm. objec- 

 tive. Camera lucid a d^-au'ing {Fish). 



There is an infiltration of the connective tissue with a 

 great number of wandering cells. In some places there are 



