Parasitic skin disease Flashcards
(23 cards)
Lice (pediculosis) is more common in which season?
Winter
How is lice diagnosed?
Adults/eggs on hair brushings
How are lice treated?
Permethrin
Fipronil
What louse affects the mane, tail and fetlock of horses?
Haematopinus asini
sucking louse
What louse affects the dorsolateral trunk of horses?
Werneckiela
biting louse
How is mange (mites) diagnosed?
Skin brushings
How are mites treated?
Ivermectin course
Which mite is more common on distal limbs of draft breeds, causing intense itching and stamping? It is more common in Winter.
Chorioptes equi (breed specific)
Which mite is zoonotic and can cause a range of clinical signs, varying from affecting the head, neck and ears only to the entire body?
Sarcoptes scabiei
Which mite affects the forelock, mane and tail and trunk?
Psoroptes equi (breed specific)
Which mite causes papule with small organs or red larvae in the centre? Found on face, distal limbs, ventral Thorax and abdomen?
Trombicula autumnalis
Which mite is rare on horses and may suggest the horse is immunosuppressed?
Demodex
Which mite is found on the head and legs, and treatment includes removing birds?
Dermanyssus gallinae (Poultry mite)
When are ticks most common?
Spring/Summer
What is the treatment for ticks?
Fipronil
Ivermectin
Topical pyrethrin
Which nematode lives in the nuchal ligament, with microfilarie migrating causing hypersensitivities?
Onchocerca cervicalis
What is the treatment for Onchocerca cervicalis? When is it more common?
Ivermectin
Prednisolone - for hypesensitivty
Spring/Summer
What is Habronemiasis? How is it treated?
Ulcerative nodules in skin due to flies or larvae
Ivermectin + steroids
Which nematode causes perianal pruritus? How is it diagnosed and treated?
Oxyuris equi (pinworm) Dx cellotape Tx anthelmintics and washing of area
How is dermatophytosis treated?
Antifungals - topical
What fungi cause dermatophytosis?
Trichophyton spp
Microsporum spp
What fly causes nodules on the neck or trunk, with a central pore? They are often painful
Warbles
Hypoderma bovis/lineatum
How are warbles/Hypoderma lineatum/bovis nodules treated?
Surgical removal
