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dermatology
dr bs canine feline
Question | Answer |
---|---|
Apocrine | Sweat glands, anal sacs, sympathetic NS |
Sebaceous | Hair follicles, secrete sebum(oily), large glands |
3 layers of skin | Epidermis, dermis, hypodermis |
Dermatology | Study of diseases of the skin |
Alopecia | Hairloss |
Seborrhea | Excessive secretion of sebum |
Erythema | Increased redness |
Collarette | Circular arrangement of scale with central area of hyperpigmentation |
Crust | Accumulation of dead cells and exudate on skin surface. |
Ectoparasites | External parasites |
Dermatophyte | Fungi that grow on skin |
Dermatophytosis | (Ring worm) skin infection with keratinophilic fungi |
Pyoderma | Bacterial infection of skin, (superficial or deep) |
Impetigo | "Puppy Pyoderma" superficial bacterial skin infection seen in young dogs |
Lesion | Area of altered skin |
Rash | Wide spread eruption of lesions |
Hyperpigmentation | Increased pigmentation of skin |
Lichenification | Thickening and hardening of skin characterized by exaggerated superficial skin markings |
Cyst | Fluctuant nodule; walled off, fluid filled nodule |
Papule | Small, circumscribed solid elevated lesion of the skin. ~1cm |
pustule | Small, elevated, circumscribed, pus-containing lesion of the akin within the epidermis |
Abscess | Localized collection of pus, larger than a pustule |
Cellulitis | Swollen, tender area of skin with bacterial infection; can develop into an abscess |
Granulation tissue | New tissue in a healing wound; consists of connective tissue and capillaries |
Erosion | Loss of skin surface; shallow, moist, crusted does not penetrate basement membrane |
Ulcer | Los of the epidermis resulting in exposure of dermis |
Comedone | Dilated hair follicle blocked with sebum and other cellular debris |
Seborrhea sicca | Dry, only scaliness |
Seborrhea oleosa | Oily and scales |
Keratolytics | Group of antiseborrheics |
Seborrheic fungal dermatitis | Malassezia species |
Cause of Pyoderma | Canine-staph intermedius Feline- pasteurella multocida |
Deep pyoderma | Staph intermedius, proteus, pseudomonas, e coli |
Superficial pyoderma | Acute moist dermatitis("hot spots"), impetigo(superficial pustular dermatitis), skin fold Pyoderma(intertrigo), acne |
Ear mites | Otodectes cynotis. Live on skin surface in external ears |
Flea | Ctenocephalides (felis) |
Brown dog tick | Rhipicephalus sanguineus RMSF/Ehrlichia |
Deer tick | Ixodes spp. Luke disease |
American dog tick | Dermacentor veriabilis. RMSF |
Mites life cycle | Egg, larva(6 legs), nymph, adult (8 legs) |
Burrowing mites | Family sarcoptidae and family demodicidae |
Family sarcoptidae | Sarcoptes, notoedres, knemidocoptes, trixacarus |
Family demodicidae | Demodex |
Nonburrowing mites | Cheyletiellosis(walking dandruff) |
Warbles | Cuterebra |
Myiasis | Fly maggots |
Bot fly | Diptera |
Dog lice | Linognathus setosus |
Dermatophytes | Microsporum canis Microsporum gypseum |
Dermatophytosis | Ringworm |
Atopy | Atopic dermatitis |
Otitis externa | Acute or chronic inflammatory disease of the external ear canal |
Malassezzia Otitis | (Otitis externa) footprint, bowling pins, or snowman shaped |
Bacterial Otitis | (Otitis externa) rod shaped And a skin cell |
Anal sac disease | Sebaceous glands that produce a foul smelling oily, brown fluid. Naturally expressed during defication but can overfill. |
Benign tumors of the skin | Histiocytoma, lipoma, papillomas, sebacceous gland cysts |
Malignant skin tumor | Vaccine associated sarcomas, mast cell tumors, melanoma |
Blistering disease | Pemphigus foliaceus |
Immune mediated condition | Pemphigus |
How Malignant tumors are expressed | FNA fine needle aspirate |
Mast cells contain | Histamine and heparin |
Dermatophytosis examples | Microsporum canis, microsporum gypseum, trichophyton mentagrophyte |
2nd most popular demodex on cat | Demodex gati |
Flea allergy dermatitis in cats | Miliary dermatitis |