The iliac hemophilic pseudotumor is a rare complication of hemophilia occurring 
in 1-2% of patients with Factor VIII or Factor IX deficiency. It is frequently 
disabling and life threatening. This report presents a comparative study of 
postoperative results of two cases of hemophilic pseudotumor of ilium. One 
patient undergoing partial resection showed a favorable postoperative course, 
whereas the patient with complete resection of the pseudotumor died of 
postoperative bleeding and sepsis. Studies on the postoperative results of these 
two cases indicate that careful preoperative consideration of tumor size and 
degree of infiltration is of the utmost importance in operative management. 
Early excision of tumors eliminates the possibility of endogenous infection. 
Even partial resection of huge tumors, leaving the lateral wall intact for 
compression, can promote recovery of functions.