Osteomas. White, bony, hard swellings in the deep meatus are a common
finding during routine examination. They usually remain small and symptom
free, and tend to be symmetrical in both ears.
Swimmers are susceptible to these lesions, which are sometimes called “swimmer’s
osteomas.” There is experimental evidence to show that irrigation of the
bony meatus with cold water produces a periostitis that leads to osteoma formation.
Histologically, these bony lesions are hyperostosis, rather than a bony tumor,
so that the term “osteoma,” although established, is not strictly correct.
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