288 Diseases of Bone. 



tarsal Bone. — Metatarsal bone of great toe — macerated, 

 illustrating the above. 



The original shaft has been attacked by disease, probably 

 tubercular, and lies with its tissue expanded and partially 

 absorbed within a newly-formed periosteal shell. This shell 

 lias several large apertures like irregular cloacae. 



G. C. 1438. 



Presented by John Campbell, F.R.C.S.E. 



6. 226. Tubercular (?) Disease of Metatarsal Bone.— Left 



metatarsal bone of great toe — macerated, illustrati-ng the above. 



"The disease followed a general syphilitic (sic) affection in a young 

 and apparently healthy man ; he had had also a cutaneous disease which 

 was tedious and difficult of cure. The metatarsal bone was removed by 

 the donor, and the toe preserved, but the wound did not heal during the 

 man's stay in the Hospital, which was for many weeks. He had very 

 considerable power in moving the great toe, and in a healthy subject 

 little, or, indeed, no deformity, would have followed the operation." 



On the inner side of the base there is a deep excavation, the 

 wall of which is formed of rarefied bone. 



The disease was considered to be syphilitic, but the 

 diagnosis at that time (1828) may not have discriminated 

 between syphilis and tuberculosis. G. C. 1115 



Presented by John Campbell, F.R.C.S.E. 



6. 227. Tubercular Disease of Metatarsal Bone.— Plaster 



cast of a front part of a left foot, showing great swelling and 

 ulceration over the inner metatarsal bones. 



The uniform swelling and the appearance of the ulcers 

 are characteristic of the swellings of the soft parts in the 

 neighbourhood of tubercular bone disease. F. P. C. 2891. 



6. 228. Tubercular Disease of Metatarsal Bone.— Head of 



