Feline Miliary Dermatitis, Eosinophilic Granuloma Complex, Mosquito Bite Hypersensitivity

Question 1

Cutaneous presentation and reaction pattern specifically described in cats=

Answer 1

Feline Miliary Dermatitis

Question 2

What are the most common causes of miliary dermatitis?

Answer 2

Allergic skin diseases

Question 3

feline miliary dermatitis lesions

Answer 3

papules covered with crusts, often felt more than seen

Question 4

What are the differentials for miliary dermatitis:

Answer 4

Pemphigus foliaceus, cutaneous adverse drug rxns, staphylococcal folliculitis

Question 5

What are the minimal diagnostics for differential diagnosis of miliary dermatitis??

Answer 5

Skin scraping, dermatophyte culture, skin cytology, ear mite check

Question 6

What are the 3 components of the Eosinophilic Granuloma Complex**?

Answer 6

Indolent ulcer (aka Rodent ulcer)
Eosinophilic plaque
Eosinophilic granuloma

Question 7

Eosinophilic granuloma complex is most common associated with ?

Answer 7

Allergic skin issues

Question 8

Indolent ulcers commonly occurs with what else??

Answer 8

flea allergy

Question 9

common location for indolent ulcers (aka rodent ulcers)

Answer 9

Upper lip adjacent to canine teeth (bilateral or unilateral)

Question 10

Rodent ulcers commonly occur with ?

what are the lesions described as?

Answer 10

flea allergy; lesions include erythematous, often crusted depressed ulcers of lip margin

Question 11

Eosinophilic plaques

Answer 11

• Common lesion in allergic cats
• Pruritus typically present & significant
• Licking likely contributes to development of lesion

Question 12

What are the common eosinophilic plaque locations??

Answer 12

abdominal skin, inguinal area, and medial thigh, single to multiple

Question 13

Describe the lesions involved with Eosinophilic plaques

Answer 13

Well-demarcated raised erythematous, eroded to ulcerative plaques

Question 14

Common locations of Eosinophilic granulomas

Answer 14

Paws/footpads
Chin (swollen chin) 
Caudal aspects of thighs
Oral cavity (tongue, soft palate)
Usually non pruritic UNLIKE eosinophilic plaques in cats

Question 15

What helps rule out neoplasia for indolent ulcers?

Answer 15

Biopsy

Question 16

Differential diagnosis for eosinophilic granuloma

Answer 16

Bacterial or fungal granulomas, insect bite reactions, neoplasia

Question 17

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

Answer 17

biopsy

Question 18

Tx for eosinophilic granulomas-

Answer 18

Steroids, cyclosporine, systemic abx, management is vital with recurrent lesions

Question 19

T/F Eosinophilic granulomas in young cats may spontaneously regress over 3-5 months

Answer 19

True

Question 20

Affected areas of feline mosquito bite hypersens:

Answer 20

Back of pinnae
Dorsal muzzle (tip and bridge of the nose); nasal planum
Less common – eyelids, footpads, chin, lips

Question 21

What are the common locations of eosinophilic plaques in cats?

Answer 21

Medial thigh, abdominal skin and inguinal areas are MOST COMMON

Question 22

Tx for mosquito bite hypersens in cats:

Answer 22

Bring cat indoors, steroids, cyclosporine atopica

Question 23

Mosquito bite allergy in the cat is type ___ hypersens.

Answer 23

type 1