Document Detail

Multiple congenital genitourinary anomalies in a polled goat.
MedLine Citation:
PMID:  12213047     Owner:  NLM     Status:  MEDLINE    
A 1-day-old, Toggenburg/Nubian crossbred goat of polled parentage was referred for necropsy because of a large (diameter, 5 cm) bladder-like mass protruding from the perineal midline and difficult urination. Differential diagnoses included cutaneous cyst, ectopic urinary bladder, and urethral diverticulum/dilatation. Several genitourinary aberrations were noted. A second, smaller (diameter, 1 cm), more distal cystic structure was adjacent to an ambiguous prepuce. Testicles were discovered within a constricted, subcutaneous space near the inguinal canals. A rudimentary penis was located dorsal to the penile urethra with no appreciable urethral process. A tiny external urethral orifice was discerned only after liquid was injected into the lumen of the cystic structures, confirming their identity as urethral dilatations. The dilatations were separated by a constricting band of fibrous tissue. No other significant findings were detected. This case illustrates a combination of congenital anomalies including bilateral cryptorchidism with scrotal absence, segmental urethral hypoplasia, and urethral dilatation, most likely associated with the intersex condition seen in polled breeds. The continued production and use of small ruminants as animal models demands the prompt recognition of congenital anomalies. This case also exemplifies the precautions required when breeding goats with polled ancestry.
William W King; Melvin E Young; M Eugene Fox
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Contemporary topics in laboratory animal science / American Association for Laboratory Animal Science     Volume:  41     ISSN:  1060-0558     ISO Abbreviation:  Contemp Top Lab Anim Sci     Publication Date:  2002 Sep 
Date Detail:
Created Date:  2002-09-05     Completed Date:  2002-12-19     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  9204153     Medline TA:  Contemp Top Lab Anim Sci     Country:  United States    
Other Details:
Languages:  eng     Pagination:  39-42     Citation Subset:  IM    
Research Service (151), Department of Veterans Affairs, Edward Hines Jr. VA Hospital, Hines, Illinois 60141, USA.
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MeSH Terms
Abnormalities, Multiple / genetics,  veterinary*
Goats / abnormalities*,  genetics
Hermaphroditism / genetics,  veterinary
Urogenital Abnormalities / genetics,  veterinary*

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