Feline Miliary Dermatitis, Eosinophilic Granuloma Complex, Mosquito Bite Hypersensitivity Flashcards
Cutaneous presentation and reaction pattern specifically described in cats=
Feline Miliary Dermatitis
What are the most common causes of miliary dermatitis?
Allergic skin diseases
feline miliary dermatitis lesions
papules covered with crusts, often felt more than seen
What are the differentials for miliary dermatitis:
Pemphigus foliaceus, cutaneous adverse drug rxns, staphylococcal folliculitis
What are the minimal diagnostics for differential diagnosis of miliary dermatitis??
Skin scraping, dermatophyte culture, skin cytology, ear mite check
What are the 3 components of the Eosinophilic Granuloma Complex**?
Indolent ulcer (aka Rodent ulcer)
Eosinophilic plaque
Eosinophilic granuloma
Eosinophilic granuloma complex is most common associated with ?
Allergic skin issues
Indolent ulcers commonly occurs with what else??
flea allergy
common location for indolent ulcers (aka rodent ulcers)
Upper lip adjacent to canine teeth (bilateral or unilateral)
Rodent ulcers commonly occur with ?
what are the lesions described as?
flea allergy; lesions include erythematous, often crusted depressed ulcers of lip margin
Eosinophilic plaques
- Common lesion in allergic cats
- Pruritus typically present & significant
- Licking likely contributes to development of lesion
What are the common eosinophilic plaque locations??
abdominal skin, inguinal area, and medial thigh, single to multiple
Describe the lesions involved with Eosinophilic plaques
Well-demarcated raised erythematous, eroded to ulcerative plaques
Common locations of Eosinophilic granulomas
Paws/footpads Chin (swollen chin) Caudal aspects of thighs Oral cavity (tongue, soft palate) Usually non pruritic UNLIKE eosinophilic plaques in cats
What helps rule out neoplasia for indolent ulcers?
Biopsy
Differential diagnosis for eosinophilic granuloma
Bacterial or fungal granulomas, insect bite reactions, neoplasia
If you have presence of eosinophils on cytology and the typical appearance of indolent ulcer(s) or eosinophilic plaques, _____ may not be necessary unless they do not respond to tx
biopsy
Tx for eosinophilic granulomas-
Steroids, cyclosporine, systemic abx, management is vital with recurrent lesions
T/F Eosinophilic granulomas in young cats may spontaneously regress over 3-5 months
True
Affected areas of feline mosquito bite hypersens:
Back of pinnae
Dorsal muzzle (tip and bridge of the nose); nasal planum
Less common – eyelids, footpads, chin, lips
What are the common locations of eosinophilic plaques in cats?
Medial thigh, abdominal skin and inguinal areas are MOST COMMON
Tx for mosquito bite hypersens in cats:
Bring cat indoors, steroids, cyclosporine atopica
Mosquito bite allergy in the cat is type ___ hypersens.
type 1
