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, 18:37, 12 April 2011
====PATHOLOGY OF THE VAGINA AND VULVA====
*'''CONGENITAL DEFECTS'''
<Br>rectovaginal fistula or urethrorectovaginal fistula.
*'''TRAUMA'''
#Prolapse: ewes in late pregnancy, or on oestrogenic pasture and in bitches, e.g. Boxer at oestrus.
#Rupture: at parturition.
*'''VULVO-VAGINITIS'''
#Mechanical: parturition.
#Infective: cow infectious pustular vulvovaginitis, seen as hyperaemia and oedema with increased lymphoid nodules and ulceration.
*'''NEOPLASIA'''
<br>Primary:
:Squamous cell carcinoma: cow, ewe, mare, due to solar radiation.
:Transmissible venereal tumour : in the bitch, transmitted at coitus by transfer of intact cells. Nodular, friable ulcerated lesion. Spontaneous regression. Uncommon where no free running dog population.
:Leiomyomas/fibromas/lipomas: Melanotic tumours of the prepuce and vulva and sarcoids in equines.
[[Category:Female Reproductive System - Pathology]]