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retinal photocoagulation

A technique using heat from a light source for destroying diseased tissue in the retina, the innermost layer of the eye. retinopathy

retinopathy

Any disorder of the retina, the innermost layer of the eye.

retinus pigmentosa

An inherited condition in which there is degeneration of the rods and cones of the retina at the back of both eyes.

retractile testicle

A condition of young boys in which the testicle moves between its normal position in the scrotum and a higher position in the groin.

retrobulbar neuritis

A form of optic neuritis in which the optic nerve becomes inflamed behind the eyeball.

retroverted uterus

A uterus that tilts backwards in the pelvis, instead of forwards as normal.

revascularisation

A surgical procedure to restore blood flow to tissues.

rheumatic fever

A disease that causes inflammation throughout the body, especially in the joints. It is rare in developed countries.

rheumatoid arthritis

A type of autoimmune arthritis featuring chronic inflammation of the small joints, especially in the hands and feet, and eventually leading to joint destruction and deformity

rheumatoid factor

An antibody often present in the blood in rheumatoid arthritis and sometimes in certain other conditions

rheumatoid nodules

Firm, non-tender nodules that occur in around 25% of rheumatoid arthritis sufferers,

rhinitis

The medical term for a runny nose, due to inflammation and mucus secretion in the nasal lining

rhinitis medicamentosa

A runny nose (rhinitis) caused by over-use of decongestant nasal sprays

rickets

A disease caused by nutritional deficiency that causes bone deformities in childhood. The most common cause is vitamin D deficiency.

rigors

Abrupt shivering, often with fever and sweating.

ring pessary

A medical device used to support the uterus, vagina, bladder or rectum. A pessary is most often used to treat prolapse of the uterus and stress urinary incontinence.

Rinne's test

A hearing test using a vibrating tuning fork.

Rocky Mountain spotted fever

A severe, tick-borne infection.

rosacea

Redness or flushing of the face, sometimes with spots, typically occurring in middle-aged women. The cause is not known.

Rosen method

A hands-on technique that focuses on relaxing chronic muscle tension with an accompanying relief of emotional tension.

rotavirus

A type of virus that is one of the causes of gastroenteritis, especially in young children.

Rotor syndrome

A rare condition characterised by high blood bilirubin levels.

rubella

A viral infection also known as German measles.

RUQ

right upper quadrant