Bone affected ly Neighhouring Congestion. 231 



with Chronic Ulcer of the Leg*. — Lower three-fourths of 

 a left tibia and fibula — macerated, to show the above. 



The bones are anchylosed near their lower ends. The 

 changes are most marked in the fibula, which is greatly thick- 

 ened towards its lower end, and shows a very irregular surface. 

 The tibia is also enlarged towards its lower end, but to a less 

 extent. From the point of anchylosis downwards, the axis of 

 each bone inclines slightly forwards. Possibly, therefore, this 

 has been a case of fracture, followed afterwards by ulceration 

 of the soft parts, and consequent periostitic development on the 



surface, 



B. C. I. 5. M. 67. 



6. 74. Bony Outg-rowths on the Fibula, associated with 



Chronic Ulcer of the Leg". — Lower half of a left fibula — 

 macerated, showing the above. 



A portion of the outer surface about two inches from the 

 lower end is depressed and porous, as if it had formed part of 

 the floor of a deepening ulcer. On the remainder of the bone 

 there are irregular outgrowths, similar to those seen in many of 

 the previous specimens. B. C. i. 5. M. 9. 



6. 75. Bony Outg'rowths of the Fibula, associated with 



Chronic Ulcer of the Leg*. — Lower half of a right fibula — 

 macerated, showing the above. 



Tlie surface of the bone is thick and irregular, and the 

 antero-posterior diameter at the lower end is especially increased. 

 The outer surface, a little above the malleolus, shows the porous, 

 pitted character previously described as indicating the floor of 

 a deepening ulcer. B. C. i. 5. M. 82. 



6. 76. Bony Outg'rowths on the Fibula, associated with 



Chronic Ulcer of the Leg. — Upper end of a left fibula — 

 macerated, to show the above. 



