What is the role of biopsy in the workup of peripheral ulcerative keratitis (PUK)?

Updated: Jun 11, 2019
  • Author: Ellen N Yu-Keh, MD; Chief Editor: Andrew A Dahl, MD, FACS  more...
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Scraping and culture of the ulcer are recommended.

Conjunctival resection/biopsy may be helpful in removing the limbal source of collagenases and other factors causing progressive ulceration.

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