tophus
/ˈtoʊfəs/
noun
- A hard deposit of uric acid crystals that forms under the skin or in joints, often associated with gout.
- Treating the tophus required medication to lower uric acid levels.
- People with chronic gout may develop a tophus in their elbow or ear.
- The doctor explained that the lump on his toe was a tophus caused by gout.