Also called disappearing bone disease. Extensive loss of calcium from a single bone so that it cannot be seen on x-ray. Any bone can be involved but the upper arm, shoulder, and jaw are most frequent. This type of selective decalcification is sometimes associated with the presence of an hemangioma, a knot of distended blood vessels. The synonyms for this condition include invisible bone disease, vanishing bone disease, phantom bone disease and massive osteolysis.
- Gorlin syndrome
The nevoid basal cell carcinoma syndrome, a genetic disorder inherited in an autosomal dominant manner and characterized by a broad face, rib malformations, and an extraordinary predisposition to basal cell carcinoma, a type of skin cancer. The gene for Gorlin syndrome has been mapped to chromosome 9 and has been identified as PTCH, the human […]
- Gottron sign
A scaly, patchy redness over the knuckles seen in patients with dermatomyositis, an inflammatory muscle disorder. (See polymyositis).
Condition characterized by abnormally elevated levels of uric acid in the blood, recurring attacks of joint inflammation (arthritis), deposits of hard lumps of uric acid in and around the joints, and decreased kidney function and kidney stones. Uric acid is a breakdown product of purines, that are part of many foods we eat. The tendency […]
- Gout, tophaceous
A form of chronic gout whereby nodular masses of uric acid crystals (tophi) are deposited in different soft tissue areas of the body. Even though tophi are most commonly found as hard nodules around the fingers, at the tips of the elbows, and around the big toe, tophi nodules can appear anywhere in the body. […]
- Gouty arthritis
An attack that is usually extremely painful of joint inflammation due to deposits of uric acid crystals in the joint fluid (synovial fluid) and joint lining (synovial lining). Intense joint inflammation occurs as white blood cells engulf the uric acid crystals, causing pain, heat, and redness of the joint tissues. The term “gout” commonly is […]