Granular Venereal Disease.

Granular Venereal Disease.
The genital form of Infectious Bovine Rhinotracheitis (IBR). The initial expression is enlargement of the lymph follicles in the vestibule. Enlargement of the linearly arranged lymph follicles on the vulvar mucosa may also occur in response to a number of irritants including some infectious agents.

Plahotnik A (2007)