MSD Manual

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Atresia of distal nasolacrimal duct, foal
distal_nasolacrimal_atresia_foal_high
Atresia of distal nasolacrimal duct, foal

    Atresia of the distal nasolacrimal duct in the foal is usually present on the floor of the nostril as a compressible swelling.

Courtesy of K. Gelatt.