Fig. 3

a Our diagnosis experience was summarized here. Once encountering suspicious patients, the patient should first be identified with a trauma history and complete the radiological examination (mainly CT and angiogram). Coagulation examination is not only helpful for the diagnosis of hemophilia, but also for the diagnosis of hemophilic pseudotumor. The key point of pathological examination is to distinguish hemosiderin-laden macrophages from giant cells. b Our perioperative management experience was summarized here. Monitoring of the coagulation condition should be carried out throughout the perioperative management. The key point for preoperative stage is coagulation correction, and the key point for postoperative stage is timely replacement treatment and less invasive examination/treatment