Surgery in hemophilic patients is a challenge for the general surgeon. 
Hemophilic pseudotumor is a rare complication occurring in 1-2% of hemophiliacs 
and affecting mainly patients with severe disease or those who have developed 
antibodies to factor VIII or IX. A number of alternatives are available for the 
management of these tumors, including conservative treatment, surgical removal, 
percutaneous drainage, embolization, and external radiation. The only definitive 
treatment is surgical excision. We report a case of hemophilic pseudotumor of 
the pelvic bone. Treatment consisted of surgical resection after arterial 
embolization using factor replacement to achieve hemostasis.