Page 2701 - Cote clinical veterinary advisor dogs and cats 4th

1400 Alopecia, Canine

Alopecia, Canine
VetBooks.ir Congenital?

Yes No

Alopecia breeds Acquired
• Chinese crested dog
• Mexican hairless dog
• Peruvian hairless dog
X-linked ectodermal dysplasia
Congenital hypotrichosis or alopecia Self-inflicted?

Yes No No

Hypersensitivities Focal or multifocal alopecia Symmetric and/or diffuse alopecia
• Atopic dermatitis
• Food hypersensitivity
• Flea bite hypersensitivity Cytology, skin scrapings, Serum biochemistry profile, urinalysis, diagnostic imaging,
• Parasites (e.g., Sarcoptes) trichogram, skin biopsy endocrine evaluation, and/or skin biopsy
Behavioral
• Compulsive licking

Infections Immune-mediated Endocrinopathies Miscellaneous
• Staphylococcus (microscopic inflammation) • Hypothyroidism • Telogen defluxion
• Demodex • Sebaceous adenitis • Hyperadrenocorticism • Anagen defluxion
• Dermatophytes • Dermatomyositis • Hyperestrogenism • Pattern alopecia
• Malassezia • Postinjection alopecia • Pituitary dwarfism Pinnal type

• Leishmania (rabies vaccine) Ventral type

• Adult-onset generalized • Neoplastic alopecia
ischemic dermatopathy (e.g., epitheliotropic
(rabies vaccine–induced lymphoma)
or idiopathic)
• Vasculitis
• Alopecia areata (pelade) Follicular dysplasias
• Pseudopelade
• Eosinophilic mucinotic
folliculitis Coat color-linked?
• Granulomatous
degenerative mural Yes No
folliculitis
• Color-dilution alopecia • Recurrent flank alopecia
• Black hair follicular dysplasia • Alopecia X
• Red or black Doberman • Breed-associated follicular
follicular dysplasia dysplasias
• Rottweiler follicular lipidosis † Portuguese water dog
† Irish water spaniel
† Chesapeake Bay retriever
† Pont-Audemer spaniel

UPDATED AND EDITED BY: Leah A. Cohn, DVM, PhD, DACVIM
ORIGINALLY WRITTEN BY: Manon Paradis, DVM, MVSc, DACVD

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