(28) - Large Animal Papillomatosis

Question 1

1. Papillomatosis is caused by what?

2. common in what? uncommon in what? rare in what?

Answer 1

1. DNA papovavirus

2. cattle and horses; goats and sheep; swine

Question 2

1. It is common in cattle and it is caused by at least 6 different types of DNA papovavirus.
2. What types cause typical fibropapillomas?
3. What types cause atypical lesions?

Answer 2

2. Types 1 and 2 (can spontaneously regress within 1 to 12 months.)
3. types 3 and 5 (do not spontaneously regress)

Question 3

1. The interdigital bovine papillomatosis can be associated with pain, lameness, weight loss and reduced milk production - does it spontaneously regress?
2. Equine typical papillomatosis is characterized by usually multiple and verrucous lesions and occur most commonly where?
3. Equine papillomatosis typically occurs in what age? spontaneously regress?

Answer 3

1. no
2. on the muzzle, distal legs and genitalia.
3. animals less than 3; yes (often within 1 to 6 months)

Question 4

1. Lesions associated with ovine papillomatosis are usually verrucous and multiple and occur most
   frequently on the face and legs.
2. In one form of caprine papillomatosis the lesions are verrucous and occur most commonly on the face, neck, shoulders, and forelegs and usually spontaneously regress within 1 to 12 months.
3. In the second form, lesions are also verrucous and occur on the udder and teats, of primarily white Saanens. Lesions do not spontaneously regress and transformation into squamous cell carcinoma may occur.
4. Lesions of swine papillomatosis may be solitary or multiple and occur on the face and the genitalia.

Answer 4

d

Question 5

1. Characteristic, but variable histopathologic findings include: ballooning degeneration of epidermal cells, clumping of keratohyalin granules, and basophilic intranuclear inclusion bodies.

Answer 5

d

Question 6

1. Bovine papillomatosis types 1 and 2 viruses, typical papillomatosis in horses and sheep and
   papillomatosis of the head, neck, and forelegs of goats usually regress spontaneously within 1 to 12 months.
2. On the other hand, bovine papillomatosis types 3 or 5, bovine interdigital papillomatosis, horses with aural plaques, and goats with papillomatosis of the udder usually do not have spontaneous resolution of their disorder
3. Surgical excision or cryosurgery, topical therapy or vaccines are treatment options for specific cases.
4. Autogenous or commercial vaccines seem to be effective to prevent but not to treat what types?
5. Economic losses can occur through hide damage, secondary infection or myiasis, and carcass condemnation

Answer 6

4. bovine types 1 and 2 papillomatosis