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SAM Final > 46. Pyoderma. Demodicosis. Fungal dermatopathies > Flashcards

46. Pyoderma. Demodicosis. Fungal dermatopathies Flashcards

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1
Q

What is pyoderma

A

a skin disease that is pyogenic

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2
Q

Causes of pyoderma

A

Coagulase +ve staph
Coagulase -ve staph
Coagulase -ve micrococcus
pseudomonas
proteus vulgaris
e. coli

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3
Q

3 Types of pyoderma

A

Surface
Superficial
Deep

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4
Q

Surface pyoderma forms

A

Hotspot form
Intertrigo form

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5
Q

Superficial Pyoderma forms

A

Impetigo form
Folliculitis form

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6
Q

Deep pyoderma forms

A

Furunculosis form
cellulitis form

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7
Q

what layer does Surface pyoderma involve

A

spf horny layer

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8
Q

What is the hotspot form of Surface pyoderma

A

Acute, moist dermatitis, pyotraumatic dermatitis
Rapid development

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9
Q

Predisposition to hotspot form

A

Long haired breeds
Hot, humid weather
May be enhanced by self - trauma

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10
Q

Cause of hotspot form

A

fleas
otitis
paraproctitis
neurosis
allergy

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11
Q

Treatment of hotspot form

A

eliminated cause
clipping
shampoo
short- term gcc and AB

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12
Q

What is the intertrigo form of Surface pyoderma

A

anatomical defects
warm, humid,
dark, anaerobic
self trauma

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13
Q

Location of intertrigo form

A

Lip fold - cocker
facial fold - brachys
vulvar fold - obese, premature spay
tail fold - corkscrew tailed dogs
body fold pyoderma
generalised pyoderma - shar pei

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14
Q

Treatment of intertrigo form

A

Plastic surrgery
daily cleaning with disinfectants

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15
Q

What is the impetigo form of superficial pyoderma

A

juvenile pustular dermatitis
puppy pyoderma
non follicular pustule

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16
Q

Predisposed to impetigo form

A

young puppies prior to puberty

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17
Q

Underlying cause of impetigo form

A

endoparasites
ectoparasites
poor nutrtion
unhygienic environment

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18
Q

Clinical signs of impetigo form

A

sub corneal - papule, pustule, yellow crusts
may be asymptomatic

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19
Q

Treatment of impetigo form

A

Treat underlying cause
Antibacterial shampoos

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20
Q

What is the folliculitis form of superficial pyoderma

A

Spf folliculitis
bacterial infection at the level of intact hair follicle / epidermis

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21
Q

Predisposed to folliculitis form

A

young or any age dogs

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22
Q

what is folliculitis secondary to

A

flea allergy
endocrine disorder
immunosuppression
atopy
parasites

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23
Q

Clinical signs of folliculitis form

A

Pustules with protruding hair
epidermal collarettes
moth eaten alopecia
papules
crusts
pruritis

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24
Q

Treatment of folliculitis form

A

treat underlying causes
AB

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25
Deep pyoderma
bacterial infection of the skin beneath the hair follicle involving both dermal and subcuticular tissues
26
Cause of Deep pyoderma
staphylococcus pseudointermiedius et al
27
Underlying cause of Deep pyoderma
always present demodicosis foreign body dermatophytes endocrine immunodeficiency
28
Predisposition to nasal pyoderma
Dolichocephalic breeds
29
Treatment of nasal pyoderma
elizabethan collar AB
30
Predisposition to interdigital pyoderma
short coated breeds
31
causes of interdigital pyoderma
foreign body demodex atopy trauma
32
Clinical signs of interdigital pyoderma
Swollen feet alopecia due to licking paronychia ulceration furunculosis pain pus nodules fistulas
33
Treatment of interdigital pyoderma
Treat the underlying cause surgical drainage footbath with saline AB
34
first choice AB for pyoderma
cefalexin clindamycin cefadroxil lincomycin sulfadimethoxine
35
AB for pyoderma based on resistance
amoxiclav marbofloxacin pradofloxacin norfloxacin ciprofloxacin cefovecin
36
where are demodex canis present
normal inhabitant of skin & hair follicles
37
Demodicosis
some dogs become sensitive to the mites due to cellular immunodeficiency
38
Predisposed to Demodicosis
old english sheep dog shar pei g. shepherd collie westie dobermann
39
3 forms of Demodicosis
Localised - head & fl Generalised - head, leg, trunk Pododemodicosis - feet
40
Localised Demodicosis
patchy alopecia erythema scaling --> hyperpigmentation
41
Generalised Demodicosis
juvenile onset mainly lesions secondary pyoderma
42
Pododemodicosis
thickened skin hyperpigmentation secondary pyoderma oedema
43
What other disease occurs alongside Demodicosis
otitis externa
44
Treatment of demodex cati
selamectin
45
Treatment of Demodicosis
up to 90% of juvenile onset heal spontaneously small no. of mites - no need for acaricide therapy Larger infection - shampoo, spot on moxidectin, amitraz laced collar
46
Treatment of generalised Demodicosis
flushing with amitraz hair clipping shampoo with benzoyl - peroxide
47
PO treatment of generalised Demodicosis
invermectin doramectin moxidectin fluralaner afoxolaner sarolander milbemycin
48
types of fungal dermatopathies
Superficial mycoses Subcutaneous mycoses Systemic mycoses
49
Types of Superficial mycoses
Dermatophytosis -ringworm Candidiasis Malassezia pachydermatitis
50
cause of dermatopytosis
Microspoum cani, gypseum et persicolor
51
Clinical signs of dermatopytosis in dogs
Patchy alopecia folliculitis plaques scales crusts
52
Clinical signs of dermatopytosis in cats
Cigarette ash patchy alopecia miliary dermatitis crusts
53
Diagnosis of dermatopytosis
fungal culturing dermatophyte test medium wood lamps KOH preparations Biopsy
54
Treatment of dermatopytosis
ketoconazole - systemic and topical Hair clipping vaccine
55
cause of candidiasis
candida albicans
56
Clinical signs of candidiasis
acute moist dermatitis Mucosa Ulceration Grey- white plaques Vaginal DIscharge Otitis externa Skin ulceration Paronychia
57
Diagnosis of candidiasis
direct smear culture biopsy
58
Treatment of candidiasis
None licenced in dogs Topical - miconazole Systemic - ketoconazole
59
Malassezia pachydermatitis is usually secondary to
Allergodermatitis endocrinopathies pyoderma demodicosis
60
Clinical signs of Malassezia pachydermatitis
Alopecia Pruritis seborrhea scaling lichenification
61
Diagnosis of Malassezia pachydermatitis
Cytology
62
Treatment of Malassezia pachydermatitis
Eliminate cause Topical - antifungals Systemic - ketoconazole
63
Subcutaenous mycosis
Phytiosis sporotrichosis
64
Systemic Mycosis
Cryptococcosis
65
Clinical signs of Cryptococcosis
nodules papules
66
Diagnosis of Cryptococcosis
Biopsy Culture
67
Treatment of Cryptococcosis
Surgery Ketoconazole
68
Prognosis of Cryptococcosis
Guarded
69
Systemic treatment of fungal dermatopathies
Itraconazole Flucanazole Terbinafin

SAM Final (48 decks)

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