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epididymitis

Inflammation of the epididymis, one of two tubes that carry sperm away from either testicle in a man.

epididymo-orchitis

Inflammation of the epididymis and/or the testis.

epidural

On or over the dura mater, the outermost of the three membranes covering the brain and spinal cord. The epidural space is used for anaesthetising spinal nerve roots, for example during pregnancy.

epiglottis

The flap of cartilage at the back of the throat that covers the trachea (windpipe) to protect it when swallowing

epiglottitis

Inflammation of the epiglottis

epilepsy

A tendency to have recurrent seizures.

epiphysis

The rounded end of a long bone..

episcleritis

Inflammation of the thin layer of tissue that covers the white of the eye.

epispadias

A congenital abnormality in boys in which the urethra opens on the top or side of the penis rather than at its tip.

epistaxis

Bleeding from the nose

epithelium

The outer layer of cells covering the open surfaces of the body, both over external surfaces and lining hollow structures.

Epstein Barr virus

The virus that causes glandular fever. It belongs to the herpes virus group.

ERCP

An abbreviation for endoscopic retrograde cholangiopancreaticogram.

erectile dysfunction

Inability to maintain a penile erection for sexual intercourse, also referred to as impotence.

erection

The enlarged, rigid state of the penis during sexual arousal.

erosion

Wearing away of surface tissue.

ertyhema induratum

A rare, recurring condition that classically produces painful, firm and sometimes ulcerated nodules on the lower legs (usually in women) in association with tuberculosis.

erythema

A term that means redness of the skin.

erythema ab igne

A skin reaction caused by chronic exposure to heat. Before the advent of central heating it was commonly seen in the elderly who stood or sat too near to open fires or electric heaters. It is now more commonly caused by laptop computers.

erythema chronicum migrans

The characteristic rash of Lyme disease, a disease caused by a bacterium that is transmitted by the bite of a tick that usually live on deer.

erythema induratum

A rare, chronic condition that classically produces painful, firm, and sometimes ulcerated nodules of the lower legs (usually of women) in association with tuberculosis.

erythema multiforme

A skin rash due to an abnormal immune response to a drug, infection or disease.

erythema nodosum

A condition characterised by the eruption of red-purple tender swellings on the legs. The most common cause is a streptoccal infection of the throat.

erythematous

A condition identified by redness of the skin. It is typically the result of infection or inflammation on or below the skin resulting in dilated and congested capillaries.