CANCER-BODIES 



93 



Their appearance in many cancers, e.g. in the cancer of 

 the breast shown in Part III, Plate VII, is even more like 

 Ste vena's nuclei in Synchytrium than are those shown here 

 in Fig. 25. 



As they are seen in cancers these bodies have been very 

 frequently described in pathological writings from 1892 

 onwards, but I have never seen so good a description of 

 them as that Stevens 

 wrote : 



" Large homogene- 

 ous nuclear bodies 

 consisting of nucleoli 

 or chromatin, or both, 

 are scattered in the 

 protoplasm of the 

 parasite. They are 

 surrounded by a clear 

 sap-space which is 

 ordered by a definite 

 nuclear wall. In some cases no wall was discernible." 



Stevens found asters associated with many of these 

 bodies as shown at b and d, which are copied from portions 

 of Stevens' s drawings of larger areas containing many such 

 elements, concerning which he writes : " They undoubtedly 

 do arise sometimes by successive divisions of the nuclei 

 arising from the primary division as described in 1903. 

 Stages showing 1, 2, and 4 spindles per cell prove this, but 



FIG. 25. BIRD'S-EYE BODIES. Part of a 

 section of a cancer of the breast. After 

 F. B. Mallory, from Part IV. 



