Hemophilic pseudotumor is one of the most serious complications of hem
ophilia and is usually treated with extensive surgery. A new treatment
approach is radiotherapy. Patients with long-bone pseudotumors are us
ually treated with high doses of radiotherapy greater than 1500 cGy. W
e treated a 13-year-old hemophilic boy who had a pseudotumor of the ti
bia with low-dose radiotherapy (600 cGy). There was no complication du
ring the two-and-a-half-year follow-up. Improvement of both the clinic
al and radiological status of the patient was noteworthy. We would lik
e to suggest the use of low-dose radiotherapy in patients with hemophi
lic pseudotumors.