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Haemangioma of the frontal bone

ALTHOUGH haemangiomata are uncommon outside bone, their occurrence even within the skeletal system is rare (Unni et al., 1971). Wyke (1949) estimated the general incidence of haemangioma of bone as 0-7 per cent of all osseous neoplasms and that 10 per cent of primary benign neoplasms of the skull are haemangiomata. In this area the parietal and frontal bones are those most frequently involved. Watson and McCarthy (1940) studied blood and lymph vessel tumours over an 8 year period at the Memorial Center in New York City and found only 5 cases of haemangioma of bone in their series of 1,363 cases. Of 73 consecutive cases of benign nasal neoplasms, Handousa (1952) found 22 haemangioma, none of which occurred in bone. Chatterji et al. (1969) gave a detailed description of a case of cavernous haemangioma of the fronto-ethmoid region. Bridger (1976) found only 17 cases of haemangioma of the nasal bones in the world literature and added one of his own.