AN ALVEOLAR SARCOMA 



101 



FIG. 40 bis. ALVEOLAR SARCOMA OF THE HUMAN BREAST. 

 (Camera drawing ; x 800 diameters.) 



A fully developed part of the tumour : i, In the centre of the field, a large fibro- 

 blast with lobed nucleus containing four intranuclear bodies ; 2, two bodies 

 similar to those in the interior of the nucleus in I, free and fusing together 

 with a peripheral extension ; 3, a granular intracytoplasmic body with a dense 

 chromatic nucleus sending rays into the periphery and forming chromidial 

 granules by fusion with cytoplasm ; 4 and 5, free amoeboid bodies containing 

 chromatin and granules, the latter similar to those in 3 ; 6, a free body with a 

 dense chromatic part sending processes into the non-chromatic peripheral 

 part ; 7, a body similar to 6, but without differentiation of chromatin. 



