NEW GROWTH of bone as the result of inflammatory and traumatic conditions is rather common; but in addition to these reparative processes, there is an occasional proliferation of bone without apparent cause or purpose. This latter condition results in the formation of a bony tumor, or osteoma, which eventually causes obstructive and pressure symptoms characteristic of its location. It is well known that the bones of the skull, especially those around the nose and ear, offer the most favorable chances for the development of such tumors.
Osteomas grow slowly, are benign, and are not infrequently multiple. They may be sessile or pedunculated. Microscopically, they vary from dense eburnated bone to soft spongy bone. Often there are no symptoms of their presence, but as they increase in size there may be pressure upon contiguous structures, causing pain and discomfort. They may encroach upon or invade the accessory sinuses, nares, mastoid cells,
KLINE OR, PEARCE RC. OSTEOMA OF THE EXTERNAL AUDITORY CANAL. AMA Arch Otolaryngol. 1954;59(5):588–593. doi:10.1001/archotol.1954.00710050600011
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