Facial dermatoses in cats
| Ectoparasites | Notoedres cati (head mange) | usually in cats under 6 months of age, as is seen in canine mange | ||
| Cheyletiella spp (head mange) | ||||
| Otodectes cyanotis (ear mites) | ||||
| Demodex gatoi (mange) | ||||
| Allergies | Flea-bite hypersensitivity | flea dirt evident | ||
| Mosquito-bite hypersensitivity | access to outdoors at dusk and dawn | |||
| Adverse food reaction | young cats under 3 years old | |||
| Atopy | generalised skin lesions as well as facial | |||
| Contact dermatitis | usually oral/perioral lesions; also associated with application of ocular/oral/aural medications | |||
| Bacteria & Fungi | Cat bite abscess | |||
| Superficial pyoderma (Staphylococcus intermedius, Streptococcal spp, Pseudomonas aeruginosa, Proteus mirabilis, Actinomycosis), | Persians predisposed to bacterial pyoderma and Malassezia infection due to facial conformation | |||
| Dermatophytes (Microsporum, Trichophyton, Malassezia pachydermatis, Candida spp) | ||||
| Tuberculosis (mycobacterial infection), Feline Multisystemic Granulomatous Mycobacteriosis, Feline Leprosy | ||||
| Eosinophilic granuloma complex | Feline indolent ulcer | see eosinophilic granuloma complex | ||
| eosinophilic collagenolytic granuloma | ||||
| eosinophilic plaque | ||||
| Viruses | Feline acne, | |||
| Herpes virus, Herpes virus-associated erythema multiforme | in cats under 3 years of age; history of URTI | |||
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FCV, Papillomavirus, Feline Pox Virus,
FeLV
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| Neoplasia | Mast cell tumour | |||
| Epitheliotropic lymphoma | Cutaneous lymphoma can be classified as epitheliotropic (closely conforming to the epidermis) or non-epitheliotropic. The epitheliotropic form is typically of T-cell origin and is also called mycosis fungoides. The non-epitheliotropic form is typically of B-cell origin. This is a rare disease in cats. | |||
| Feline Sarcoid and/or Fibropapilloma, Xanthoma, Merkel Cell Tumour (neuroendocrine carcinoma), Melanoma, Basal Cell Tumors, Mast Cell Tumors, Dilated Pore of Winer | ||||
| Squamous Cell Carcinoma, Solar Keratosis/Actinic Dermatitis, Multicentric Squamous Cell Carcinoma In Situ: Bowen's Disease | ||||
| Urticaria pigmentosa | primarily in Devon Rex and Sphinx cats | |||
| Autoimmune | Pemphigus foliaceus | |||
| Pemphigus erythematosus | ||||
| Discoid Lupus Erythematosus | ||||
| Systemic Lupus Erythematosus | ||||
| Systemic disease | Pancreatic paraneoplastic alopecia | usually a concurrent GI problem exists and poor condition (e.g. weight loss and dehydration). | ||
| Paraneoplastic exfoliative dermatitis | ||||
| Degenerative mucinous lymphocytic mural folliculitis | ||||
| Miscellaneous | Cutaneous drug eruptions, Idiopathic facial dermatitis, Intertrigo, Periocular leukotrichia, Preauricular alopecia, Urticaria pigmentosa, Apocrine nevus, Follicular mucinosis, Lentigo simplex, Lymphocytic mural folliculitis, Acquired pinnal folding, Junctional epidermolysis bullosa, Metastatic calcinosis, Feline auricular chondritis, Erythema multiforme, foreign body reactions, vasculitis, idiopathic nasal scaling in bengal cats | |||