Histological Analysis of Radiation Effects 



167 



degeneration of mitotic cells, and the disintegration of the "aged" 

 resting cells. A few of the resting cells were apparently killed 

 directly by the radiation. 



The charts in figures 3 to 5 refer to cases of epithelioma 

 (carcinoma) colli uteri, clinical stage 2, treated by radium 

 insertions on days 0, 7 and 21 by a modified Stockholm 

 technique. 



Figures 2 to 5 show cell counts in young foci of serial biopsies 

 taken from the growing edge of tumors before and during 

 radiation treatment. In these figures : 



Abscissae = time in days. 

 Ordinates = cell counts %. 

 Viable cells: 



^^^^M^i^^^^i^^ii^^ resting cells. 

 ^HMKm^^ M ^^^^H^^Hmitotic cells. 

 Nonviable cells: 



differentiating cells. 



degenerating cells. 



80 _ 



40 - 



20 



FIG. 2. Reaction Chart of Basal-Celled Carcinoma 



