Lemon-Yellow Nails and Long-Term Phenazopyridine Use

@article{Amit1997LemonYellowNA,
  title={Lemon-Yellow Nails and Long-Term Phenazopyridine Use},
  author={Gaur Amit and Amir Halkin},
  journal={Annals of Internal Medicine},
  year={1997},
  volume={127},
  pages={1137}
}
TO THE EDITOR: An 87-year-old man was referred to the hospital for dysuria. His medical history consisted of mild dementia and recurrent urinary tract infections. On examination, vital signs were normal and the patient did not seem to be in distress. His sclera were mildly icteric, and central cyanosis was observed. Deep lemon-yellow discoloration of all nails was also noted. Other than an enlarged prostate, findings on physical examination were unremarkable. Laboratory tests revealed… 
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