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Medical Dictionary Terms Beginning with E
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E. coli
E. coli: Short for Escherichia coli, the colon bacillus, a bacterium that normally resides in the human colon. E. coli has been studied intensively in genetics and molecular and cell biology because of its availability, its small genome size, its normamore detail info...
Eagle syndrome
Eagle syndrome: Inflammation of the styloid process, a spike-like projection sticking off the base of the skull. The tissues in the throat rub on this structure during the act of swallowing causing pain. The diagnosis of Eagle syndrome is made by histomore detail info...
Ear
Ear: The hearing organ. There are three sections of the ear, according to the anatomy textbooks. They are the outer ear (the part we see along the sides of our head behind the temples), the middle ear, and the inner ear. But in terms of function,more detail info...
Ear canal, self-cleaning
Ear canal, self-cleaning: Most of the time the ear canals are self-cleaning, that is, there is a slow and orderly migration of ear canal skin from the eardrum to the outer opening. Old earwax is constantly being transported from the deeper areas of themore detail info...
Ear cleaning (by a doctor)
Ear cleaning (by a doctor): When so much wax accumulates that it blocks the ear canal (and hearing), your physician may have to wash it out, vacuum it, or remove it with special instruments. Alternatively, your physician may prescribe ear drops what armore detail info...
Ear cleaning (yourself)
Ear cleaning (yourself): Never put anything smaller than your elbow in your ear! Wax is not formed in the deep part of the ear canal near the eardrum, but only in the outer part of the canal. So when a patient has wax pushed up against the eardrum, itmore detail info...
Ear pit
Ear pit: Tiny pit in front of the ear: preauricular pit. A minor anomaly of no great consequence in itself. More common in blacks than whites and in females than males. Can recur in families. The presence of 2 or more minor anomalies in a child increasmore detail info...
Ear puncture
Ear puncture: Puncture of the ear drum may be due to an accident for example when something is stuck into the ear. Or it may be due to fluid pressure in the middle ear. Today the ear drum is occasionally punctured on purpose with surgery. A surgicallymore detail info...
Ear ringing
Ear ringing: Together with other abnormal ear noises, ear ringing is medically called tinnitis. Tinnitus can arise in any of the four sections of the ear: the outer ear, the middle ear, the inner ear, and the brain. If tinnitus persists and its camore detail info...
Ear tag
Ear tag: Common minor anomaly, a rudimentary tag of ear tissue, often containing a core cartilage, usually located just in front of the ear (auricle). Therefore also called preauricular tag. The presence of 2 or more minor anomalies in a child increasemore detail info...
Ear tubes
Ear tubes: Formally known as tympanostomy tubes, ear tubes are small plastic tubes inserted into the eardrum (the tympanum) to keep the middle ear aerated for a prolonged period of time. To put the tubes in place, a myringotomy (a surgically placed tinmore detail info...
Ear wax
Ear wax: The ear canal is shaped somewhat like an hourglass. The skin on the outer part of the canal has special glands that produce earwax. The purpose of this natural wax is to repel water and to trap dust and sand particlemore detail info...
Ear, cauliflower
Ear, cauliflower: An acquired deformity of the external ear to which wrestlers and boxers are particularly vulnerable. The cause is damage from trauma. When trauma causes a blood clot under the skin of the ear, the clot disrupts the connection of themore detail info...
Ear, external
Ear, external: There are three sections of the ear. They are the external ear, the middle ear, and the inner ear. The external ear looks complicated but it is functionally the simplest part of the ear. It consists of the pinna or auricle (the vismore detail info...
Ear, inner
Ear, inner: There are three sections of the ear. They are the external ear, the middle ear, and the inner ear. The inner ear is far and away the most highly complex. The essential component of the inner ear for hearing is the membranous labyrinthmore detail info...
Ear, internal
Ear, internal: There are three sections of the ear. They are the external ear, the middle ear, and the internal ear. The internal ear is far and away the most highly complex. The essential component of the internal ear for hearing is the membranomore detail info...
Ear, low-set
Ear, low-set: A minor anomaly involving an ear situated down below its normal location. Technically, the ear is low-set when the helix (of the ear) meets the cranium at a level below that of a horizontal plane through both inner canthi (the inside cornmore detail info...
Ear, malrotated
Ear, malrotated: See Ear, slanted.more detail info...
Ear, middle
Ear, middle: There are three sections of the ear. They are the external ear, the middle ear, and the inner ear. The middle ear consists of the ear drum (the tympanum or tympanic membrane) and, beyond it, a cavity. This cavity is connected via a cmore detail info...
Ear, outer
Ear, outer: There are three sections of the ear. They are the outer ear, the middle ear, and the inner ear. The outer ear looks complicated but it is functionally the simplest part of the ear. It consists of the pinna or auricle (the visible projmore detail info...
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