13 Bloody Otorrhea For most patients, bloody otorrhea is particularly frightening. Fortunately, it is usually due to a benign process. As with other pathologies within the head and neck, though, it can be the harbinger of a more serious diagnosis; thus, prompt examination is warranted. Clinical examination will usually distinguish between one of the many pathologies that give rise to bloody otorrhea. See Chapter 10 for information on bloody otorrhea resulting from trauma to the external ear canal. Bloody otorrhea can be the result of an iatrogenic injury, such as that caused by an inserted foreign body (see Chapter 10). See Chapter 12 for information on radiation-induced chronic otitis externa. See Chapter 9 for a discussion of malignant or necrotizing otitis externa. See Chapter 10
External Auditory Canal Origin
Trauma: External
Iatrogenic Injury
Radiation-induced Chronic Otitis Externa
Skull Base Osteomyelitis: Malignant or Necrotizing Otitis Externa
Foreign Body in the External Auditory Canal
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