Bone affected hy Neiglibouring Congestion. 225 



6. 58. Ostitis Deformans of the Skull. — Portion of a cranium 

 greatly thickener], possibly from a case of ostitis deformans. 

 The three tables are transformed into cancellated tissue. 

 Churchyard fragment. F. P. C. 627. 



Presented by Professor John Thomson. 



(f?.) Acromegaly. Specimen wanted. 



III. INFLAMMATORY CHANGES IN BONE. 



1, Changes in Bone due to Inflammation in the neighbouring soft 



parts. 



6. 59. Development of Bone under an Ulcer. — Sections of 



tibia and fibula — injected, and in spirit, showing the above. 



The patient was a lad 18 years of age, suffering from paraplegia. 

 His foot had heen amputated, and a bandage applied too firmly in the 

 after-dressing caused sloughing of the skin. While the resulting ulcer 

 was in process of healing, secondary hemorrhage occurred, and necessitated 

 a second amputation. 



The tibia is markedly vascular at the posterior and outer 

 parts. The fibula is more uniformly vascular. The vascular 

 part of the tibia shows a crust of bone on the surface, while the 

 compact layer is somewhat opened out. Similar changes ar© 

 shown on the fibula, especially at its outer side. 



G. C. 3170. 



Presented hy A. G. Millek, F.E.C.S.E. 



6. 60. Ulcer which caused Development of Bone under it. 



— Portion of the ulcer from the previous case — injected, and in 

 spirit. 



The specimen shows the vascularity of the ulcer and of 

 the parts below. G. C. 3172. 



Presented hy A. G. Miller, F.R.C.S.E. 

 P 



