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Kayser-Fleischer rings. An examination finding in Wilson disease.
This 32-year-old patient complained of longstanding difficulty speaking. He also had a tremor.
Copper deposition in Descemet’s membrane of the cornea. These rings can be either dark brown, golden, or reddish-green, are 1 to 3 mm wide, and appear at the corneal limbus. With rare exceptions, they are diagnostic of inherited hepatolenticular degeneration—Wilson disease.
Text and photo courtesy of: Herbert L. Fred, MDHendrik A. van Dijk, via cnx.org
Creative Commons licence. See references for download source.