306 Diseases of Bone. 



portions are to be seen marked by the impressions of numerous 

 small vessels similar to what is observed on the parietal bone, 



"Large portions of the superior maxillary bones, including 

 the alveolar process of the front teeth, are in the process of 

 exfoliation. 



" On examining the base of the skull, the condyloid and 

 cuneiform processes of the occipital bone and the posterior 

 clinoid processes of the sphenoidal bone may be observed 

 partially diseased" (Edin. Med. Chir. Trans, vol. i.). 



On the interior, besides the points above noted, new bone 

 has been thrown out round the numerous blood-vessels 

 alluded to. G. C. 723. 



Presented hy Sir George Ballingall. 



6.263. Syphilitic Disease of the Skull, with Destruction 



of the Nose. — Skull — macerated, illustrating the above. 



" During life the patient exhibited a horrid spectacle. I could see 

 into the throat, so as to observe the motion of the velum palate, while he 

 was speaking. Some time after the disease was stopped in its progress, 

 the cranium became affected. It did not, strictly speaking, exfoliate, 

 but the whole substance came away. The pulsation of the brain forcing 

 the dura mater against the edge of the bone, it was desti'oyed by ulcera- 

 tion, and fungus cerebri followed, when the man died." 



There is an aperture just behind the centre of the coronal 

 suture, extending backwards for two and a half inches. 

 It is widest about half an inch from the front, where it 

 measures two inches across, and becomes narrower towards the 

 back. The edges are sharp and jagged, and the margin is 

 bevelled from the outside. The bevelled portion on the front 

 and left side is mostly smoothed over, as if the process had 

 ceased there, but on the right side it is irregular, as if still in 

 progress. The greater part of the frontal bone shows numerous 

 vascular markings, producing a mosaic-like pattern, the result 

 apparently of horizontally running blood-vessels. At one or 

 two places there are patches of opened-out vascular pores. 

 Below the right frontal eminence is a patch of necrotic bone, 

 irregularly circular in outline, and measuring one and a half 



