Hello, it may be skull osteoma, which is a common benign tumor. It is characterized by slow growth, painless, extensive basement and unclear boundary with the surrounding skull. It can occur in any part of the skull, especially in the frontal bone and parietal bone, and less in other skulls and skull base bones.

The treatment of osteoma is mainly surgery. If the osteoma at the top of the skull is small and has no special symptoms or individual osteomas have stopped growing, it may not be treated. Osteomas that grow rapidly and affect the face and have symptoms should be surgically removed. For osteoma confined to the outer plate, it is only necessary to chisel or grind it flat, and the residual matrix does not need to be inactivated by electrocautery. Large osteomas involving the brain need to be removed by bone flap, and the bone flap with tumor needs to be boiled for 30 minutes for inactivation and plastic treatment before being put back. Osteoma involving sinus should be removed surgically if it has caused sinus obstruction, and osteoma of frontal sinus should be removed through subfrontal epidural approach. Osteoma of ethmoid sinus can be removed by orbital or orbital plate approach. Osteoma of cancellous bone needs to be completely removed to avoid recurrence.