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Canine demodicosis - Coggle Diagram

- - - - 1-2 adults
      - no mites
    - - diagnostic
    - - fold and squeeze skin
      - take multiple scrapes
      - wet blade or spatula w water or mineral oil
      - capillary bleeding
      - lower condenser
  - - - face
      - feet
  - - - fold and squeeze skin
      - remove tape
      - place on glass slide
      - place acetate tape on select area
- - - - most common
      - hair follicle
    - - less common
      - seborrhea oleasa
      - pruritis
  - - - localized
        
        CS
        
        <6 alopecia patches
        
        not pruritic
        
        scaling
        
        erythema
        
        +/- hyperpigmentation
        
        face and extremities
        
        secondary pyoderma is rare
        
        mild condition
        
        <1y when occurs
        
        usually resolves spontaeneously
        
        common locations
        
        periocular
        
        muzzle
        
        legs
        
        ddx
        
        dermatophytosis
        
        superficial pyoderma
      - generalized
        
        3-18mo
        
        CS
        
        12+ lesions
        
        entire body involvement
        
        2+ feet affected
        
        variable lesions
        
        alopecia
        
        scaling
        
        papules
        
        draining tracts
        
        hemorrhagic exudate
        
        crusts
        
        hyperpigmentation
        
        comedones
        
        distrubution
        
        face
        
        periocular
        
        muzzle
        
        chin
        
        feet
        
        anywhere is possible
        
        in severe cases
        
        peripheral lympadenopathy
        
        systemic signs
        
        starts localized
        
        hereditary predisposition
        
        may resolve spontaeously
        
        don't breed these pets
        
        treatment
        
        amitraz dips
        
        isoxazolines
        
        fluralaner (Bravecto)
        
        afoxolaner (NexGard)
        
        Sarolaner (Simparica)
        
        lotilaner (credilo)
        
        milbemycin oxime
        
        ivermectin
        
        doramectin
        
        moxidectin
        
        moxidectin + imidacloprid
    - - 4yo
      - acquired immune dysfunction
        
        internal dz
        
        neoplasia
        
        immunosuppressive drugs
      - look for underlying disease
        
        CBC
        
        SAP
        
        UA
      - will need to stay on parasiticidal for life if underlying dz cannot be resolved