GI
1. In medicine, commonly used abbreviation for gastrointestinal, referring collectively to the stomach and the small and large intestine.
2. Outside of medicine, GI may stand for galvanized iron, general issue or government issue (as in GI Joe).
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- Giant cell arteritis
A serious disease characterized by inflammation of the walls of the blood vessels (vasculitis). The vessels affected by the inflammation are the arteries (hence the name “arteritis”). The age of affected patients is usually over 50 years of age. Giant cell arteritis can lead to blindness and/or stroke. It is detected by a biopsy of […]
- Giant cell pneumonia
A deadly but fortunately rare complication of measles that tends to strike children who are immunodeficient from leukemia or AIDS. The lung tissue shows multinucleated giant cells lining the alveoli (air sacs) of the lungs. Also known as Hecht’s pneumonia.
- Giant cell tumor, malignant
A type of bone tumor characterized by massive destruction of bone near the end (epiphysis) of a long bone. The site most commonly struck by this tumor is the knee — the far end of the femur and the near end of the tibia. The tumor is often coated by new bony growth. It causes […]
- Giant cell tumor of bone
A tumor of bone characterized by massive destruction of the end (epiphysis) of a long bone. The site most commonly involved by this tumor is the knee, both the far end of the femur and the near end of the tibia. The term ‘giant cell’ reflects the fact that microscopic analysis of the tumor reveals […]
- Giant hypertrophic gastritis
A premalignant disorder of the stomach characterized by overgrowth of the stomach lining (the gastric mucosa) and hypoalbuminemia (low blood serum level of albumin) due to loss of albumin by the stomach. The abnormalities of the stomach are highly characteristic with giant folds, excess mucus secretion by the lining of the stomach, and hypochlorhydria (decreased […]