Acrochordon: A small tag of skin that may have a stalk (a peduncle). An acrochordon may appear on skin anywhere although the favorite locales are the eyelids, neck, armpits (axillae), upper chest, and groin.
Invariably benign, this tiny tumor of the skin usually causes no symptoms unless repeatedly irritated as, for example, by the collar.
Treatment may be done by freezing with liquid nitrogen or by cutting off with a scalpel or scissors if the acrochordon is irritating or cosmetically unwanted.
The term “acrochordon” is from the Greek “acro-” (which means top, summit, extreme, or refers to an arm or leg) + “chorde”, string. Medically, an acrochordon is also called a cutaneous papilloma. It is far better known as a skin tag.
Acrocyanosis: Blueness of the hands and feet, usually due to inadequate circulation.
Acromegaly: Condition due to the production of too much growth hormone by the pituitary gland after the end of adolescence. When there is secretion of too much growth hormone before the end of adolescence, gigantism results. People with pituitary gigantism can truly be giants; they can sometimes end up over 7 or 8 feet in […]
- Acromioclavicular joint
Acromioclavicular joint: A gliding joint located between the acromion (a projection of the scapula that forms the point of the shoulder) and the clavicle (the collar bone). It is served and supported by the capsular, superior, and inferior acromioclavicular ligaments; the articular disk; and the coracoclavicular (trapezoid and conoid) ligaments. Abbreviated AC joint.
Acromion: The projection of the scapula (the shoulder blade) that forms the point of the shoulder. The acromion is part of the scapula. It protrudes laterally (away from the midline) and is triangular in shape. The top of the shoulder is acromial. The word “acromion” comes from the Greek “akron”, peak + “omos”, shoulder = […]
Acrophobia: An abnormally excessive and persistent fear of heights. Sufferers experience severe anxiety even though they usually realize that, as a rule, heights pose no real threat to them. Derived from the Greek “acron”, height + “phobos”, fear.