Hemophilic pseudotumor: multicenter experience over a 25-year period.

Pseudotumor is an infrequent manifestation of bleeding diathesis seen in hemophiliacs, the management of which is still controversial. To ascertain the effectiveness of the main therapies of choice, we have reviewed 1,831 patients affected by hemophilias A (1,108) and B (172), von Willebrand's disease (329), and other miscellaneous coagulopathies (222) diagnosed between 1965 and 1990 in a multicentric, retrospective study. Pseudotumor was proven in 21 patients. Replacement therapy was given in 15 cases as the first therapeutic approach, with complete success attained in only two, whereas surgery, which was carried out in 14 patients, completely resolved the process in eight (P = 0.017). Patients over 40 years of age demonstrated worse prognosis than younger patients (P = 0.02), but no other clinical parameters were shown to have influenced the patients' evolution. Surgical management was the most effective treatment for pseudotumor, although more conservative therapies cannot be overlooked in selected cases.