CC, ISM / SCIENCE PHOTO LIBRARY CC, ISM / SCIENCE PHOTO LIBRARY
Middle ear cyst. Otoscope view of the inside of the ear of a patient with cholesteatomas (white). These are cyst-like sacs, containing cholesterol, that can erode bone and cause damage if allowed to grow to a large size. If needed, they can be surgically removed. These cholesteatomas are in the attical region of the middle ear.
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