Skin

Question 1

what does sarcoma mean?

Answer 1

malignant of mesenchymal cell origin

Question 2

-oma, -carcinoma

Answer 2

epithelial cell origiin

Question 3

virus associated with tumors

Answer 3

papillomavirus

Question 4

sun leads to which tumor?

Answer 4

hemangiosarcoma

Question 5

most epithelial tumors are benegn or malignant?

Answer 5

85%benign in dog

60% in cats

Question 6

mesenchymal tumors are mostly benign or malignant?

Answer 6

57% benign in dog

20% in cat

Question 7

basal cell tumor

Answer 7

common in cats
alopecic, ulcerated, well demarcated on head or neck of cat
- excision is curative
- can be cystic or pigmented

Question 8

basal cell carcinoma

Answer 8

all the same as regular but more locally invasive, not well defined,

• wide margins can still be curative

Question 9

papillomas
- age
- where
tx?

Answer 9

• viral or nonviral
• young dogs, purebred
• head mouth, multiple sites
• plaque or hyperkeratotic
• usually solitary and fall off on their own

Question 10

inverted papilloma (vs. others are exophytic, growing out)

Answer 10

very rare, in oral cavity, papilloma virus associated

Question 11

idiopathic squamous papilloma

• tx?
• viral?

Answer 11

don’t go away on own

not viral induced

Question 12

multicentric squamous cell carcinoma - bowens disease

Answer 12

older cats
- not distinctive
- thicken skin, alopecia and scaling
- associated with papilloma virus
NOT UV

Question 13

SCC
uv?
cat v. dog
morphology?

Answer 13

uv associated (sparsely haired skin/light pigmented skin)
preceeded by dermatitis
- white or piebald dogs, addomen or flank
- cats on ears, eye

vs. NON UV associated (spontaneous)
- NONHEALING WOUND
- idiopathic

Question 14

actinic dermatitis is the evidence of sun damage to the sun and precedes _________.

Answer 14

squamous cell carcinoma

Question 15

adnexa

Answer 15

follicle, sabeceous gland, apocrine gland

Question 16

follicular tumors are almost always _____

Answer 16

benign, cured by excision

Question 17

infundbular keratinizing acanthoma

Answer 17

breeds - noweigian, yorkie, keeshound

multiple tumors

Question 18

follicular tumor cats get?

Answer 18

trichoblastoma

Question 19

locations where melanocytic tumor is more often malignant melanoma

Answer 19

Dog: digit
lips, mouth, nail bed

Cats: more likely to get melanoma v. melanocytoma, (different site predilection - on haired skin)

Question 20

soft tissues sarcomas are generally located where?

invasive and recurrent?

Answer 20

head and limbs

locally aggressive and highly recurrent

Question 21

tumors that met to the skin

Answer 21

hemangiosarcoma
osteosarcomas
seminomas
mast cell
lots of carcinomas
*pulmonary carcinoma of cats (lung digit syndrome)