What is tophi

A longer duration of the gout patients, especially long-term elevated serum uric acid can not get timely control and often gouty arthritis, the author can be around joints or subcutaneous ear, etc., and found that the high for Pimian yellow-white nodules, clinical called tophi. Tophi is due to the excessive amount of blood uric acid salt deposited on the skin and form. Deposition of uric acid in the skin as white Jiejingzhuang salt, a stimulating effect on the subcutaneous tissue, and can cause skin and subcutaneous tissue of the local inflammatory response. The long can cause localized connective tissue hyperplasia, uric acid salt deposition growing, expanding, and thus larger nodules, skin expansion, expansion, combined with the erosion of urate, nodules may occur rupture. Gout nodular texture Piangeng general, seemed to round stones, so called tophi.