190 • Eugen Strouhal 



Figure 15. Case no. 2. Eroded area 

 with new bone overgrowth on inner 

 side of right iliac wing, frontal view. 



Figure 16. Case no. 2. Eroded area 

 with new bone overgrowth on inner 

 side of left iliac wing, frontal view. 



The deformed thorax and the abdomen were very much com- 

 pressed into the narrow space between the lumbar and thor- 

 acic spine, making the function of internal organs extremely 

 difficult. The only possibility to maintain the quasi- 

 horizontal position of the head was an exaggerated cervical 

 and atlanto-occipital hypcrlordosis. 



DEMARCATED ILIAC PERIOSTITIS 



Unusual findings on the upper parts of the inner aspects of 

 both wings of the iliac bones were almost certainly connected 

 with the described spinal pathology. There were crescent- 

 shaped segments of eroded compact bone, revealing the thick 

 spongiotic bone. On the lower borders of the erosions and in 

 a few places inside the erosions there were spiculae, iippings 

 and islets of newly formed, compact bone (Figures 15.16). 



On the right iliac bone the defect began on the crista iliaca 

 67 mm anterior to the spina iliaca posterior superior and 

 extended with a caudally convex border (maximum distance 

 from the crista iliaca 27 mm) to a point 84 mm posterior to the 

 spina iliaca anterior superior. The erosion encompassed aLso 

 the crista iliaca between the points mentioned. 



On the left iliac bone the extent of the defect was narrower 

 and shorter than on the right one. It began about 70 mm 

 anterior to the spina iliaca posterior superior and extended 

 with a wavy, inferior border (maximum distance from the 

 crista iliaca 19 mm) to a point 95 mm posterior to the spina 

 iliaca anterior superior. 



The described changes may be considered reactive to tem- 

 porary adherent "cold" abscesses, descending paraverte- 

 brally on the posterior side of the large and small psoas 

 muscles. 



Zagreb Paleopaihnhny Symp. 1988 



