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Results 1 - 1 of 1 for Ochronosis disorder
  1. Alkaptonuria 
    ... stones, spots of dark pigmentation, and dark urine. Ochronosis, a buildup of dark (blue-black) pigment in ... color change may not occur immediately after urination. Ochronosis occurs in connective tissues throughout the body, such ...
    https://medlineplus.gov/genetics/condition/alkaptonuria - Genetics