![Postcervical Fold.](images/cn00110.jpg)
Postcervical Fold.
The post-cervical vaginal fold may obstruct the view of the external cervical os of the cervix during vaginoscopy. It may also interfere with the placement of a catheter into the cervix.
Shille VM (1980)
![Cervix Traversed.](images/cn00111.jpg)
Cervix Traversed.
A small back rod has been inserted through the cervical canal from the uterine lumen into the fornix.
Shille VM (1980)
![Vestibulovaginal Junction.](images/cn00112.jpg)
Vestibulovaginal Junction.
Junction of the vagina and the vestibule in the area of the hymen.
Shille VM (1980)
![Transmissible Venereal Tumor.](images/cn00113.jpg)
Transmissible Venereal Tumor.
A Transmissible Venereal Tumor (TVT) is located at the vestibulovaginal junction near the urethral meatus.
Shille VM (1980)
![External Cervical Os.](images/cn00114.jpg)
External Cervical Os.
External cervical os. Note the pronounced longitudinal cervical fold.
Shille VM (1980)
![Constricted Cervix.](images/cn00305.jpg)
Constricted Cervix.
Infusion of a radio-opaque solution into the anterio vagina demonstrates a severely constricted cervical lumen.
Verstegen J (2009)
![View of the Cervix by Vaginal Endoscopy.](images/cn00094.jpg)
View of the Cervix by Vaginal Endoscopy.
View of the cervical os during a transcervical intrauterine insemination in the dog.
Verstegen J (2009)