Search results
Results from the WOW.Com Content Network
Mastoiditis is the result of an infection that extends to the air cells of the skull behind the ear. Specifically, it is an inflammation of the mucosal lining of the mastoid antrum and mastoid air cell system inside [1] the mastoid process. The mastoid process is the portion of the temporal bone of the skull that is behind
Hemotympanum refers to the presence of blood in the middle ear, which is the area behind the eardrum. In most cases, the blood is trapped behind the eardrum, so no discharge is visible. Treating hemotympanum depends on the underlying cause.
The mastoid process is located posterior and inferior to the ear canal, lateral to the styloid process, and appears as a conical or pyramidal projection. It forms a bony prominence behind and below the ear. [1] It has variable size and form (e.g. it is larger in the male than in the female). It is also filled with sinuses, or mastoid cells.
Attacks of skin redness and burning sensation or pain in one or both external ears are the only common symptoms. [1] Pain is often most pronounced at the ear lobe, and sometimes radiates to the jawbone and cheek. [1] The pain is normally mild, but has occasionally been described as severe. [1]
Ear pain, also known as earache or otalgia, is pain in the ear. [1] [2] Primary ear pain is pain that originates from the ear. Secondary ear pain is a type of referred pain, meaning that the source of the pain differs from the location where the pain is felt. Most causes of ear pain are non-life-threatening.
Eustachian tube dysfunction can be caused by a number of factors. Some common causes include the flu, allergies, a cold, and sinus infections. [6] In patients with chronic ear disease such as cholesteatoma and chronic discharge, studies showed that they have obstructive pathology at the ear side of the Eustachian tube.
Signs of break in the base of the skull may include bruising behind the ears or around the eyes, or blood behind the ear drum. Blood or cerebrospinal fluid can leak from the nose or ear. Battle's sign, also known as mastoid ecchymosis, is an indication of fracture of middle cranial fossa of the skull.
AIED is generally caused by either antibodies or immune cells that cause damage to the inner ear. There are several theories that propose a cause of AIED: Bystander damage – Physical damage to the inner ear may lead to cytokine release that signals for an immune response. This may be a component of the "attack/remission cycle" of AIED. [9]