HEMANGIOMATA are common; however, their occurrence as primary tumors within the skeletal system is extremely rare.3,4,6,9,13,14,16 According to Wyke,16 the general incidence of hemangiomata of bone is 0.7% of osseous neoplasms. In a series of 1,831 bone tumors recorded at the Registry of Bone Sarcoma, only 13 were hemangiomata. The general incidence of primary hemangiomata of the skull is 0.2% of osseous neoplasms and 10% of primary benign neoplasms of the skull. The parietal bones are most frequently involved and then the frontal bones.
Wyke tabulated all of the hemangiomata of the skull described in the literature prior to 1949, including his own, a total of 60 cases. He listed all of these as occurring in the calvarium except for a few, designated as petrous, basisphenoid, or orbital. None of these tumors was listed as occurring in the zygoma, maxilla, nasal bone, palatine bone, or mandible.