Bilateral congenital lacrimal fistula in a Brown Swiss bull

Braun, U.; Spiess, B.; Matheis, F.; Schnetzler, C.; Trösch, L.; Drögemüller, C.; Gerspach, C. (2012). Bilateral congenital lacrimal fistula in a Brown Swiss bull. Schweizer Archiv für Tierheilkunde, 154(3), pp. 121-123. Gesellschaft Schweizer Tierärztinnen und Tierärzte 10.1024/0036-7281/a000310

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A five-year-old Brown Swiss bull was referred to the Department of Farm Animals, University of Zurich, because of bilateral epiphora that was unresponsive to treatment. Clinical examination revealed a fistulous opening medial to the medial canthus of both eyes and mucopurulent discharge from both openings. Attempts to flush the nasolacrimal duct via the lacrimal points resulted in the fluid exiting via the fistulous opening. Retrograde flushing of the nasolacrimal duct from the nasolacrimal opening resulted in the flush fluid flowing back out the nasolacrimal opening. Bilateral lacrimal fistula medial to the medial canthus of the eye was diagnosed based on the findings. The same anomaly was diagnosed a year later in 4 related female animals referred to our Department for other reasons. Three of the cases were sired by the bull described above and one was sired by his half-brother. Therefore, an autosomal recessive mode of inheritance of this anomaly was assumed. Clinical, epidemiological and molecular studies of the offspring of both bulls are underway to further investigate this anomaly.

Item Type:

Journal Article (Further Contribution)

Division/Institute:

05 Veterinary Medicine > Department of Clinical Research and Veterinary Public Health (DCR-VPH) > Institute of Genetics
05 Veterinary Medicine > Department of Clinical Research and Veterinary Public Health (DCR-VPH)

UniBE Contributor:

Drögemüller, Cord

Subjects:

500 Science > 570 Life sciences; biology
500 Science > 590 Animals (Zoology)
600 Technology > 610 Medicine & health
600 Technology > 630 Agriculture

ISSN:

1664-2848

Publisher:

Gesellschaft Schweizer Tierärztinnen und Tierärzte

Language:

English

Submitter:

Cord Drögemüller

Date Deposited:

19 Apr 2021 14:49

Last Modified:

19 Apr 2021 14:49

Publisher DOI:

10.1024/0036-7281/a000310

PubMed ID:

22378053

BORIS DOI:

10.48350/155911

URI:

https://boris.unibe.ch/id/eprint/155911

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