Enema: Liquid injected into the rectum. An enema may be used for therapeutic (such as to stimulate evacuation of the bowels or heal inflammation of colon called colitis ) or diagnostic (such as imaging studies of the gastrointestinal tract – barium enema) purposes.
- Acne vulgaris
The common form of acne, in teens and young adults, that is due to overactivity of the oil (sebaceous) glands in the skin that become plugged and inflamed. Acne typically develops when the oil glands come to life around puberty and are stimulated by male hormones that are produced in the adrenal glands of both […]
- Thrombocytopenia, heparin-induced
Low blood platelet count as a result of the medication heparin. HIT (heparin induced thrombocytopenia) is caused by the body forming antibodies to Heparin when it is bound to a blood protein called platelet factor 4 (PF4). When the antibody binds to the combination of heparin and PF4 it activates platelets which bind together and […]
The smaller of the two bones of the forearm, located on the thumb’s side. (The larger bone in the forearm is the ulna.)
- Toes, six
on either side of the extremity or somewhere in between. The extra toe can be out beyond the little toe (which is called fibular hexadactyly) or out beyond the big toe (tibial hexadactyly) or, finally, between two of the normally expected toes (intercalary hexadactyly). Far and away the most frequent form of hexadactyly involving the […]
- Corneal topography
Corneal topography: Also known as videokeratography or corneal mapping, corneal topography is a method of computer-assisted examination of the cornea, the clear front portion of the eye that transmits and focuses light into the eye. Corneal topography is performed by projecting illuminated rings onto the corneal surface which are reflected back and measured by the […]
- Cataract, secondary
Cataract, secondary: A cataract that develops secondary to another disease or surgery. The other disease may, for example, be glaucoma or retinal detachment. A secondary cataract is in contrast to a primary cataract, one that develops independently of any other disease.
Electronystagmogram: A recording of the eye movements, usually done to confirm the presence of nystagmus. Electronystagmogram may be done in cases of vertigo (dizziness) to determine if there is damage to the vestibular portion of the acoustic nerve. The test may be done in cases of possible acoustic neuroma, Meniere disease, positional vertigo, and labyrinthitis. […]
- Thallium poisoning
Poisoning with the element thallium which enters the environment primarily from coal-burning and smelting. It stays in the air, water, and soil for a long time and is not broken down. It builds up in fish and shellfish. The major source of exposure to thallium for most people is eating food contaminated with thallium. Other […]
- Vaccine, killed polio
Polio vaccine, inactivated.