08 - endocrine and alopecic dermatoses

Question 1

1. what pattern does alopecia take?
2. inflammatory?

Answer 1

1. symmetrical and bilateral sparing the head and extremities
2. no

Question 2

are endocrine alopecias common in cats?

Answer 2

no

Question 3

(hypothyroidism)

1. most common in what dogs?
2. dermatologic cx?
3. tx?

Answer 3

1. middle aged medium to large breed dogs
2. alopecia (+ rat tail), hair loss in area of friction/wear, loss of guard hairs w/ retention of under coat, myxedema (^ skin thickness), recurrent pyoderma or otitis externa
3. tx the hypothyroidism!

Question 4

(hyperadrenocorticism)

1. middle aged to older dogs
2. derm cx?
3. tx?

Answer 4

1. thin skin, calcium deposits, poor wound healing, recurrent non-pruritic pyoderma,
2. treat cushings!

Question 5

(hyperestrogenism)

1. ^ estrogen from?
2. causes what on derm?

Answer 5

1. cystic ovaries or testicular tumors (or iatrogenic)
2. alopecia

Question 6

(hyperandrogenism)

1. usually from what?
2. see what?

Answer 6

1. usually from testicular tumors
2. hyperplasia of perianal and tail glands

Question 7

(alopecia X - follicular arrest)

1. not assoc w/ systemic illness
2. common in what breeds?
3. see what?
4. dx how?

Answer 7

2. poodles, pomeranians, etc
3. progressive alopecia w/ alopecia
4. rule out other endocrine alopecias

Question 8

(cyclic flank alopecia)

1. truncal alopecia that occurs seasonally and typically seen in boxers, english bulldogs, airedales
2. usually occurs during winter months

Question 9

(color-dilution alopecia)

1. associated with diluted coat colors
2. abnormal melaniziation results in what?

Answer 9

2. weak hair shaft that breaks with minimal trauma