342 Diseases of. Bone. 



first phalanx of the little finger of a left hand — macerated, 

 illustrating the above. 



An expanded shell attached to each bone is evidently 

 the remains of a cartilaginous tumour. That on the metacarpal 

 bone is the more complete, and has arisen from the back of the 

 bone, at its phalangeal end. It forms nearly a complete shell, 

 but is perforated and deficient here and there. The interior has, 

 attached to the wall, numerous irregular processes or septa, 

 which before maceration must have separated cartilaginous 

 nodules. The expanded part on the phalanx has been partly 

 sawn away, but it has originally been less complete than that 

 on the metacarpal bone. The interior of the phalanx is quite 

 exposed. 



This specimen was formerly described as a case of " spina 

 ventosa." G. C. 205. 



6. 363. Chondroma of Little Fingep.— Phalanges of what 



seems to be a little finger, apparently of a young person, with 

 chondroma arising from the first phalanx — in spirit. 



Amputated at St. George's Hospital, and presented to Mr Wilson 

 by Mr Brodie in 1806. 



An extension from the back of the first jihalanx passes 

 for a short distance on to the surface of the tumour, the 

 interior^ of which is composed of small lobules of hyaline 

 cartilage, now rendered very opaque by the spirit. 



Formerly described as tumour of first phalanx of thumb. 



W. C. G. 32. a. 



6. 364. Chondroma of Fingers.— Plaster cast of a left hand, 

 apparently of a woman, illustrating the above. 



There are tumours upon all the phalanges and upon some 

 of the metacarpal bones. The largest one, which is on the 

 middle finger, has attained the size of a small orange. Those 

 on the index finger are next in size, and extend nearly to the 

 tip. The third finger is least affected, but shows distinct 



