THE STRUCTURE OF A ROUND-CELLED SARCOMA 



7 2 3 



FIG. 44. SARCOMA OF THE TESTIS. 



Schematized representation of a small bloodvessel, with the adjacent cells : i, Wall 

 of bloodvessel ; 2, layer of cells with normal nuclei ; 3, layer of hypertrophied 

 cells, the nuclei of which contain parasites which in some cases appear to be 

 dividing into two ; 4, mitosis in a tissue-cell ; 5, parasite escaping from the 

 nucleus into the cytoplasm ; 6 and 6', intracytoplasmic parasites ; 7, parasite in 

 equatorial phase of mitosis ; 8, free parasite in irregular mitosis ; 9, free 

 parasite with irregular cyanophile spindles formed about erythrophile bodies ; 

 9', similar to 9, but the spindle separate from erythrophile body ; 10, 10', and 

 10", free parasites in course of internal subdivision ; 11, free parasites sub- 

 divided into small round fuchsinophile 'spores' ('Russell's bodies')? and 

 two clear bodies with cyanophile nuclei ; 12, group of bodies, some nucleated, 

 others non-nucleated; 13, group of reticular non-nucleated (?) involution-forms. 



