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Blue nails

Authoring team

Causes include:

  • side effect of anti-malarial drugs e.g. chloroquine, 5-fluorouracil and AZT (azidothymidine)
  • Wilson's disease - azure colour restricted to the lunula
  • result of systemically administered silver salts

Reference:

  1. Zaiac MN, Daniel CR. Nails in systemic disease Dermatologic Therapy 2002;15 (2); 99–106.

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