Syphilitic Necrosis. 303 



6. 260. Syphilitic Disease of the Skull, ending in Necrosis. 



— Portion of skull, tapper and back parts wanting — macerated, 

 illustrating the above. 



There has been extensive destruction of the frontal and 

 nasal bones. On the outer surface the parts not necrosed 

 are roughened from increased vascularity. Almost the whole 

 of the frontal region is occupied by a roughened seques- 

 trum, which seems to have been detached and only held in 

 place during life by the soft parts, for it is now glued into 

 position. Its surface is roughened by apparently recent and 

 old-standing changes, similar to those already described, and 

 part of the surface seems to have been detached as a superficial 

 necrosis. All round it there is a groove, which, however, has not 

 penetrated through the inner table, and the margins of which 

 for the most part overhang. The frontal sinuses are exposed, 

 but their mesial septum remains. The bones forming the bridge 

 and sides of the nose are wanting, and the ethmoidal and 

 maxillary sinuses are freely exposed. The vomer is deficient, 

 and there is a large gap near the front of the hard palate. The 

 interior of the roof of the skull is roughened by marks of 

 dilated blood-vessels, but to a less extent than might have been 

 expected from the changes on the outside. Only at one spot — 

 near the middle line in front — has the process of necrosis 

 penetrated into the interior. On the base of the skull the 

 bony ridges are sharp and strongly marked, both inside and 

 outside. The section of the skull in the parietal and occipital 

 regions is extremely thick, and the diploe is everywhere 

 replaced by compact bone. F, P, C. 475. 



Presented by Professor JoHX Thomson. 



6. 261. Syphilitic Disease of the Skull, ending" in Necrosis. 



— Scalp of a man — macerated, illustrating the above. 



' ' About two years before I saw this man he fell and struck his head 

 against a log of wood. Some time after this he was grievously attacked 

 with pains in his forehead, and about the shoulders and clavicles. Corona 



