388 Diseases of Bone. 



ing this cavity was of a nature similar to the great mass of the tumour. 

 There is little doubt that a small part of the tumour had been left, or that 

 the muscles, tainted b}' the contact, had propagated the diseased action. 

 The diseased portion, increasing with that rapidity which characterises 

 this sort of tumour, had destroyed the coats of the vessel, and from this 

 sprung the haemorrhage which proved fatal. Had the tumour been 

 entire, the blood would only have run into the interstices of its texture, 

 but being open and upon the face of the stump, the blood had free egress. 

 The cavity on the stump was in all respects similar to that found in the 

 centre of the tumour. 



" On dissecting out the head of the femur, and sawing it through and 

 macerating it, the disease was seen to have propagated itself to the head 

 of the bone and through the whole cancelli." 



The broken ends of the bone are seen over-lapping, and 

 apparently at one or two places united by bone. The greater 

 part of the interval between the broken ends, however, has been 

 occupied by the tumour substance ; some of it has fallen away, 

 but what remains is soft, grey, and somewhat translucent. This 

 material can also be seen occupying the medullary cavity above 

 and below the seat of fracture. (See case of Phineas in Bell's 

 "Surgical Observations and Eeports," p. 376.) B. C. i. 1. M. 33. 



6. 455. Sarcoma of the Femur, following- Fracture. — 



Keproduction of plate ix. in the above-named volume by Sir 

 Charles Bell, showing the appearance of the tumour before 

 amputation. G. C. 3593. 



6. 456. Sarcoma of the Femur, following- Fracture.— 



Section of lower end of the femur from the previous case — in 

 spirit. 



The infiltration of the medulla by the tumour substance 

 is well shown. B. C. i. 6. M. 29. 



6. 457. Sarcoma of the Femur, following- Fracture. — 



Section of the stump of the femur, left after the amputation in 

 the pievious case — in spirit. 



