Term
|
Definition
Primary Lesions
Immune-mediated
- Pemphigus foliaceus
Infectious
- Superficial bacterial pyoderma (most common)
- (less common) dermaphytosis, demodicosis |
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Term
|
Definition
primary lesion
Infectious
- superficial bacterial pyoderma(common)
- dermatophytosis, demodicosis
Parasitic
- sarcoptes, other mites
- flea bites (without allergies)
Allergies
- Flea bite hypersen
- atopic dermatitis
- contact reactions (rare) |
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Term
|
Definition
primary lesion "I used to be a pustules", rings of red
Immune-mediated
- Pemphigus foliaceus
Infectious
- Superficial bacterial pyoderma (most common)
- (less common) dermaphytosis, demodicosis |
|
|
Term
|
Definition
Primary lesion
dermal erthyma, non-specific, doesn't last long
NOT in cats!
Allergies:
- insect bite
- Atopic Dermatitis |
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Term
|
Definition
primary lesion, rare, often present as ulcers
immune-mediated
- autoantibodies against basement membrane eg bullous pemphigoid
- pemphigus vulgaris |
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|
Term
| DDX Well Demarcated Complete Alopecia |
|
Definition
usually primary, can be secondary
Infectious
- superficial bacterial pyoderma(*dogs)
- demodicosis (*cats)
- dermaphytosis (*cats)
Immune-mediated
- w/o pustule/crusting: alopecia areata (rare)
Behavior/Physical Trauma
- allergies- Atopy dermatitis (from licking)
Hormonal
- hyper A
- hypo T
- sex hormones (eg Steroli cell tumor, ovarian cysts)
Cosmetic
- genetically lost hair
eg Alopecia X(hair cycle arrest), follicular dysplasia |
|
|
Term
| DDX Poorly demarcated patchy alopecia |
|
Definition
Self-Trauma
- allergies (Atopy Dermatitis)
- sarcoptes
Infectious
- demodicosis (dogs only) |
|
|
Term
| DDX poorly demarcated patchy "barbered" alopecia in a cat |
|
Definition
Self- Trauma
- allergies (flea bite hypersen)
Infectious
- Dermatophytosis |
|
|
Term
| DDX Poorly demarcated diffuse partial Alopecia |
|
Definition
Hormonal
- HyperA
- HypoT
- sex hormone
Cosmetic Hairloss
Infectious
- demodicosis |
|
|
Term
|
Definition
secondary, non-specific
Infectious
- demodicosis
- Superficial bacterial pyoderma
Neoplastic
- epithelotropic lymphoma
Allergies
- atopy dermatitis
- Food adverse reaction |
|
|
Term
|
Definition
sometimes dry skin
secondary:
- superficial bacterial dermatitis
- yeast
- chronic allergies
- cheyletiella (walking dandruff)
- fatty acid deficiency
- Epitheliotropic lymphoma |
|
|
Term
| DDX for hyperpigmention, lichenficiation, greasiness |
|
Definition
| very non-specific. it only indicates that it is chronic |
|
|
Term
|
Definition
Immune-mediated
- discoid lupus Erythematosus
- pemphigus foliaceus
- pemphgius erythematosus
- vitiligo
Chronic Inflammation
- mucocutaneous pyoderma (a form of SBP)
Neoplasia
- epitheliotropic lymphoma |
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|
Term
| DDX excoriations, erosions, ulcers (clinically similar) |
|
Definition
Infectious
- superficial bacterial pyoderma
Immune-mediated
- vasculitis
- EM
- Pemphigus foliaceus
- pemphgius vulgaris |
|
|
Term
|
Definition
non-specific
healing over erosions, ulcers
on feet:
- hepatocutaneous syndrome(low amino acid plasma concentrations) |
|
|
Term
|
Definition
Infectious
- demodicosis (dogs)
Hormone
- HypoT
- HyperA
Cosmetic |
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