04 - skin and subcutaneous tissue tumors

Question 1

Answer 1

Question 2

(papilloma - epithelial)

1. originates from squamous epithelium.
2. viral cause in puppies
3. lesions look like what?
4. common in dogs, rare in cats
5. in young dogs, papillomas regress spontaneously - remove with sx if they don’t

Answer 2

3. cauliflower or wart like

Question 3

(sebacueous gland tumors - epithelial)

1. originate from where?
2. common in what dogs?
3. adenomas are more common and look how?
4. adenocarcinoams are invasive and very rare.
5. tx of choice?

Answer 3

1. the epithelium of the sebaceous glands
2. older female spaniels and poodles
3. wart like, well circumscribed
4. sx excision

Question 4

(perianal tumors - epithelial)

1. originate from perianal glands
2. dependent on the presence of what hormone?
3. solitary or multiple, usually benign, common in older intact male dogs
4. carcinomas ulcerate, invade, and mets to where?
5. adenomas regress with what?
6. tx for adenocarcinoams?

Answer 4

2. testosterone
3. lymphatics, iliac LN, and lungs
4. castration
5. radical excision

Question 5

(basal cell tumors - epithelial)

Question 6

Question 7

(squamous cell carcinoma)

1. occurs secondary to what?
2. locally invasive, mets?
3. tx?

Answer 7

1. UV exposure in hypopigmented areas

(occur more frequently in white cats on ear tips and nose)

2. locally invasive, late to mets (to lungs and LN)
3. sx excision if possible (can also use radiation or chemo)

Question 8

(anal sac/apocrine gland adenocarcinoma)

1. originate from apocrine glands that secrete into the anal sac
2. most common in what dog?
3. mets to RLN are common
4. often get what?
5. tx?

Answer 8

2. older female
3. hypercalcemia (they release PTHrP)
4. surgical excision

Question 9

Question 10

Question 11

(lipomas/liposarcomas - mesenchymal)

1. originate from adipocytes

2.

Question 12

Question 13

Question 14

Question 15

Question 16