This refers to a type of skin growth that can occur in the middle ear and is often associated with chronic ear infections. It can lead to the destruction of ear structures if not treated.

This is a more general term referring to the appearance of the growth, which resembles a pearl. It emphasizes the visual aspect rather than medical implications.

Similar to "pearl tumor," this is just an alternate spelling commonly used in British English. It retains the same usage and implications as the previous meanings.