414 Diseases of Bone. 



THE SKULL. 



I. Ahnormalities in Groiuth or Development. 

 Abaormalities in the Sutures. 



6. 516. Absence of the Coronal Suture— Skull of an adult- 

 macerated, illustrating the above. 



The sagittal suture is continued forwards as a permanent 

 frontal suture to the nasal bones. There is no trace whatever 

 of the coronal suture. The other sutures are quite distinct, and, 

 from the appearance of the teeth, the person must have been 

 about middle age. The skull is very round, and there is 

 unusual breadth in the frontal region. The occipital bone 

 projects backwards from the contour of the rest of the skull. 

 On holding the skull to the light, it is seen to be very thin in 

 many places, especially near the sagittal suture. G. C. 3483. 



6. 517. Partial Obliteration of the Coronal Suture— Skull 



— macerated, illustrating the above. 



The sagittal suture is continued forwards into the frontal 

 suture, which, however, is nearly obliterated for about one 

 inch from the nasal bones, although it is distinct elsewhere. 

 The end of the coronal suture has been obliterated from below the 

 level of the temporal ridge on the right side, and from a little 

 below the same ridge on the left side. The vault of the skull is 

 unsymmetrical, slanting more obliquely on the right side, while 

 it is rounded a little more than usual on the left, as if the skull, 

 in a plastic state, had been flattened towards the left from pressure 

 on the right side. The bridge of the nose is peculiarly wide 

 and flat. G. C. 3484. 



6.518. Permanence of the Frontal Suture. — Skull — macer- 

 ated, illustrating the above. 



The skull is peculiarly heavy and massive, and the bony 

 ridges are strongly marked. The frontal suture has persisted. 

 The other sutures seem normal. G. C. 3485. 



