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Uterus - Developmental Pathology (view source)
Revision as of 12:01, 12 April 2011
, 12:01, 12 April 2011Created page with "====CONGENITAL ABNORMALITIES OF THE UTERUS==== Defects of the female duct system occur in all species most common in cattle and pigs. <BR>'''BILATERAL OR UNILATERAL AGENESIS:'''..."
====CONGENITAL ABNORMALITIES OF THE UTERUS====
Defects of the female duct system occur in all species most common in cattle and pigs.
<BR>'''BILATERAL OR UNILATERAL AGENESIS:'''
Bilateral agenesis is very rare and the animal is sterile. With unilateral agenesis the animal may show reduced litter size. Also associated with ipsilateral renal agenesis.
<BR>'''SEGMENTAL APLASIA OF UTERINE HORNS AND/OR UTERINE BODY:'''
Degree and site of aplasia may vary causing:
*imperforate hymen-like condition.
*absence of parts of the uterus or whole uterine horn, bilateral or unilateral (uterus unicornis).
Cranial portions of tract may become cystic/filled with necrotic debris and secretions. Common in White Shorthorn breed of cattle - “White Heifer Disease” with a clinical history of infertility and objection to coitus.
<br>'''ABERRANT FUSION OF THE DISTAL TRACT(uterine body and cervix):'''
*Complete failure of fusion leading to duplication of vagina and cervix and non-fusion of the body of the uterus, this is very rare but normal in marsupials.
*Failure of fusion of cervix and uterine body leading to duplication of the cervix and uterine body - uterus didelphys - this is normal in some marsupials, rodents and lagomorphs.
*Double cervix with a dorso ventral septum dividing the anterior vagina, this is more common and results in varying degrees of sterility as a result of failure to achieve normal coitus.
[[Category:Reproductive System - Developmental Pathology]]
[[Category:Female Reproductive System - Pathology]]
Defects of the female duct system occur in all species most common in cattle and pigs.
<BR>'''BILATERAL OR UNILATERAL AGENESIS:'''
Bilateral agenesis is very rare and the animal is sterile. With unilateral agenesis the animal may show reduced litter size. Also associated with ipsilateral renal agenesis.
<BR>'''SEGMENTAL APLASIA OF UTERINE HORNS AND/OR UTERINE BODY:'''
Degree and site of aplasia may vary causing:
*imperforate hymen-like condition.
*absence of parts of the uterus or whole uterine horn, bilateral or unilateral (uterus unicornis).
Cranial portions of tract may become cystic/filled with necrotic debris and secretions. Common in White Shorthorn breed of cattle - “White Heifer Disease” with a clinical history of infertility and objection to coitus.
<br>'''ABERRANT FUSION OF THE DISTAL TRACT(uterine body and cervix):'''
*Complete failure of fusion leading to duplication of vagina and cervix and non-fusion of the body of the uterus, this is very rare but normal in marsupials.
*Failure of fusion of cervix and uterine body leading to duplication of the cervix and uterine body - uterus didelphys - this is normal in some marsupials, rodents and lagomorphs.
*Double cervix with a dorso ventral septum dividing the anterior vagina, this is more common and results in varying degrees of sterility as a result of failure to achieve normal coitus.
[[Category:Reproductive System - Developmental Pathology]]
[[Category:Female Reproductive System - Pathology]]