tophus

A deposit of urates in the skin and tissue around a joint or in the external ear, occurring in gout.

A concretion of mineral salts and organic matter deposited on the surface of the teeth.

Calc tufa.

A concretion of calcareous matter which forms on the cartilaginous surface of the joints, and on the pinna of the ear, in gout; a gouty deposit.

One of the mineral concretions about the joints, and in other situations, occurring chiefly in gouty persons. They consist usually of urate of sodium; when occurring in the internal organs they are also composed of phosphate of calcium.

Calcareous tufa.

A deposit of monosodium urate crystals in the body, caused by high levels of uric acid in the blood.

a deposit of urates around a joint or in the external ear; diagnostic of advanced or chronic gout

an incrustation that forms on the teeth and gums