How is oil drop or salmon patch lesions characterized in nail psoriasis?

Updated: Jun 25, 2021
  • Author: Cindy Li, DO; Chief Editor: William D James, MD  more...
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This lesion is a translucent, yellow-red discoloration in the nail bed resembling a drop of oil beneath the nail plate. This patch is the most diagnostic sign of nail psoriasis. [8]

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