OSTEOMA OF THE FRONTAL SINUS

Tumors of bony cavities which are considered benign in that they do not invade by cellular extension often destroy surrounding structures by pressure erosion. This generality holds true for the slow-growing benign tumors of the nasal accessory sinuses and for the osteomas in particular. These rather rare growths, because of their situation, not infrequently present surgical problems of considerable magnitude. It is uncommon in this surgical age to encounter a pedunculated osteoma of the frontal sinus which has grown to such an enormous size as in the instance reported. Of added interest in this case is the formation of a mucocele secondary to occlusion of the frontonasal duct. It is the purpose in this report to record an example of an osteoma of the frontal sinus which was successfully extirpated by a slightly different approach from any previously described. REPORT OF CASE History.—L. I. C. H., a schoolboy,