Thelansis

  Chronic otitis media (COM) is characterized by the chronic presence of middle ear effusion in the absence of acute signs of infection or chronic complications from otitis media, including persistent tympanic membrane perforation. Granulation tissue may be soft or fibrous, contain cholesterol or hemorrhage, and coexist with cholesteatoma. Chronic otitis media is divided into chronic suppurative otitis media and chronic otitis media with effusion (OME). Chronic suppurative otitis media is not temporally related to acute otitis, as the pathological changes in the middle ear are different. The classic symptoms of established chronic suppurative otitis are otorrhea and deafness or some form of hearing loss. Chronic suppurative otitis media can lead to the formation of cholesteatoma. This cyst contains desquamated epithelial cells, which can cause local bone erosion and lead to the retention of infected material. Occasionally, the patient may have more advanced chronic ear pathology ...