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Urethral duplication and chromosomal translocation in a Swiss braunvieh heifer
  1. U. Braun1,
  2. B. Gonshor1,
  3. K. Feige1,
  4. O. Gardelle2,
  5. D. Suwattana2 and
  6. G. Stranzinger3
  1. 1 Klinik für Wiederkäuer- und Pferdemedizin der Universität Zürich
  2. 2 Veterinär-Chirurgische Klinik, Winterthurerstrasse 260, CH-8057 Zürich, Switzerland
  3. 3 Institut für Nutztierwissenschaften, Tannenstrasse 1, CH-8092 Zürich, Switzerland


As it was urinating, a six-month-old Swiss braunvieh heifer produced a second stream of urine from a fistula that opened on the ventrolateral margin of the left vulval lip. A catheter was introduced into this opening and passed easily into the bladder. Urethrography showed that the fistula joined the urethra in the midpelvic region and that a single canal originated from the bladder. Endoscopy confirmed this finding and also revealed a duplication of the vaginal portion of the cervix, a division of the cranial vagina by a septum and a fibrous band in the region of the hymenal ring. Cytogenetic examination revealed reciprocal translocation between chromosomes 20q23 and 22q23. A diagnosis of urethra duplex, duplication of the vaginal portion of the cervix and reciprocal autosomal translocation between chromosomes 20 and 22 was made on the basis of these findings.

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