76 The Lymphocyte and Lymphocytic Tissue 



8 jx in diameter. The lymphocytes when tested for phagocytic activity 

 were actively phagocytic with particles of India ink and had numerous 

 vacuoles in their cytoplasm. The nuclear membrane became more ir- 



Fig. 6-5. Thirty-three lympho- 

 cytes and 3 neutrophils from a 

 lesion similar to that in Fig. 6-3, 

 in the twelfth hour of inflamma- 

 tion in man. (X 900) 



regular in outline and the nuclear pattern more porous or "open." 



At l(j hours (Fig. 6-6) the lymphocytes showed absolute evidence of 

 hypertrophy of nuclear and cytoplasmic mass. Cell diameters ranged from 



Fig. 6-6. Hypertrophied lym- 

 phocytes from a lesion similar to 

 that in Fig. 6-3, in the sixteenth 

 hour of inflammation in man. 

 (X 900) 



11 to 11 jj, in diameter. There was division of large, coarse chromatin 

 masses into smaller particles. 



At 25 hours (Fig. 6-7) the cell diameters of the lymphocytogenous macro- 

 phages ranged from 11 to 17 ^. There was an increase in nuclear size 



