RESUMO
BACKGROUND: In this study, a rare case with hemophilia pseudotumor in the skull was reported. CASE PRESENTATION: The case was a 34-year-old male patient who was admitted to the hospital, with the complaint of dizziness for more than 1 month. The physical examination indicated that the patient was conscious, who could give right answers to the questions. Moreover, there was a bulge on the left frontal-temporal parietal bone. The head CT showed abnormal density lesions on the left frontal-temporal parietal bone, with multiple irregular calcifications within the border. Skull MRI showed a large clump-like mixed signal at the top of the left frontal ridge. After admission, the patient was subjected to complete preoperative preparation and surgical treatment. Neurological navigation was used to determine the extent of skull defect before surgery to make a surgical incision. Clotting factor VIII substitution therapy was used for the intraoperative and postoperative treatments. The lesion was completely removed. CONCLUSIONS: These results suggest that the skull hemophilia pseudotumor has been rarely seen. According to imaging examination, in combination with family history, the diagnosis can be confirmed. If there is no obvious occupying effect, conservative treatment can be tried. On the contrary, if there is an obvious occupying effect, surgical treatment might be effective, and coagulation factor VIII should be supplemented during the perioperative period.