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Close-up of the ear of a 14-month-old boy suffering from otitis media with a perforated eardrum.

Close-up of the ear of a 14-month-old boy suffering from otitis media with a perforated eardrum. Otitis media is an inflammation of the middle ear. In this case the eardrum (tympanum) has burst resulting in a discharge of pus (yellow liquid).

Source  Dr P Marazzi / Science Photo Library