Malassezia Flashcards

1
Q

Which Malassezia species has both a yeast and mycelial phase?

A

Malassezia furfur

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Is Malassezia patchydermatis lipophilic or non-lipophilic?

A

Lipophilic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

In what breeds might you find Malassezia patchydermatis most commonly?

A
  1. Basset hound
  2. Dachshund
  3. Boxer
  4. American cocker spaniel
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Malassezia dermatitis is typically a secondary problem. What 4 diseases are typically associated with this fungal infection?

A
  1. Allergies
  2. Endocrinopathies
  3. Cornification disorders
  4. Systemic illnesses
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

True or False: Malassezia is pruritic.

A

TRUE - progressively pruritic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are the historical complaints associated with a Malassezia infection?

A
  1. Licking feet
  2. Rubbing face
  3. Weight loss
  4. Perianal pruritus
  5. Otitis externa
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Is Malassezia responsive to glucocorticoids?

A

Partially responsive, but that responsiveness wanes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What are the 4 differental diagnoses of intense pruritus in the dog?

A
  1. Scabies
  2. Malassezia dermatitis
  3. Flea allergy dermatitis
  4. Seborrhea
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Of the 4 differential diagnoses of intense pruritus, which is most commonly seen?

A

Malassezia dermatitis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What are the key physical features associated with a Malassezia infection?

A
  1. Pruritus
  2. Erythema
  3. Scaling
  4. Crusting
  5. Lichenification
  6. Hyperpigmentation
  7. Alopecia
  8. Lymph node enlargement
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

For Malassezia, which treatment is best, topical or systemic?

A

Topical

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

___ ___ is used to reduce greasiness associated with Malassezia.

A

Selenium disulfide

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

How frequent should shampoo therapy be done to control Malassezia?

A

3 X weekly as a sole therapy

1-2 X weekly as adjunct therapy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the most important key to shampoo therapy with Malassezia?

A

Contact time

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What are the ingredients in Mal-a-Ket?

A
  1. Ketoconazole
  2. Chlorhexidine
  3. Acetic acid
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What are the ingredients in Malacetic ultra?

A
  1. Hydrocortisone
  2. Ketoconazole
  3. Acetic acid
  4. Boric acid
17
Q

What are the ingredients in Malaseb?

A
  1. Miconazole

2. Chlorhexidine

18
Q

What are the 4 systemic antifungals?

A
  1. Ketoconazole
  2. Itraconazole
  3. Fluconazole
  4. Terbinafine
19
Q

What is the duration of treatment for a systemic antifungal?

A

21-30 days

20
Q

What is the mechanism of action of ketoconazole?

A

P-glycoprotein inhibitor and P450

21
Q

What are the 3 side effects associated with Terbinafine?

A
  1. GI
  2. Panting
  3. Increased hepatic enzymes
22
Q

True or False: Malassezia therapy should be discontinued after 30 days.

A

FALSE - therapy should never be completely discontinued.