Dermatology Flashcards
Cavity filled w/pus
Abscess
Substance, usually protein, that causes an immune response in reaction to its presence
Allergen
Hair loss
Alopecia
A dz condition in which the body makes antibodies against its own cells, resulting in their destruction
Autoimmune
Referring to the hormonal system of the body
Endocrine
Abnormal draining tract origination from within the dermis or hypodermis
Fistula
A microbial condition within the tissue
Infection
Parasitic condition on the skin surface
Infestation
Complex tissue reaction caused by traumatic, infectious, neoplastic, or autoiummue dz thats characterized by redness, heat, pain, and loss of function
Inflammation
Small, raised, inflamed lesion within the epidermis
Papule
Itchiness
Pruritis
Small, raised, pus-filled lesion within the epidermis; pimple
Pustule
Immunotherapy AKA:
allergy shots
More effective if started prior to illness; must perform allergy testing first; owner will administer vaccine on a specific schedule, vaccine is specific for that pet
Immunotherapy
Suppresses immune system; Cyclosporine most common form; more costly than steroids; monitor liver function
Immunosuppressive agents
6 types of antibiotics:
- Cephalexin;
- Clavulanic Acid/Amoxicillin;
- Enrofloxacin;
- Neomycin;
- Gentamicin;
- Mupirocin
1 derm antibiotic; good against Staph, inexpensive, tablet, liquid or capsule; vet brand- Simplicef
Cephalexin
Common derm antibiotic; broad spectrum, more costly than cephalexin, tablet or liquid; vet brand-Clavamox
Clavulanic Acid/Amoxicillin
Flouroquinilone antibiotic; broad spectrum; generally expensive, reserved for severe infections, injectable, oral or otic forms; only give once a day in cats at low dose; vet brand- Baytril
Enrofloxacin
Aminoglycoside antibiotic; good against Staph bacteria, toxic orally, common topical drug; skin and ears; vet brands- Panalog, Tresaderm, Animax
Neomycin
Aminoglycoside antibiotic; can be nephrotoxic, good against Staph, used topically; skin & ears, ointment, drops and sprays availiable; vet brands- Otomax, Gentaved Spray, Malotic
Gentamicin
Good against Staph and yeast; topical use; antibiotic
Mupirocin
3 antifungals:
Miconazole; clotrimazole; Fluconazole, Itraconazole
Topical ointment or shampoo, good for ringworm, yeast; antifungal
Miconazole
Topical ointment, shampoo, or otic form, good for yeast, ringworm; vet brands- Otomax, Malotic; antifungal
Clotrimazole
Oral antifungals for systemic or widespread infections
Fluconazole, Itraconazole
2 types of antipruritics/Anti-inflammatory drugs:
Antihistamines; steroids
Decrease pruritis, cause sedation, oral and topical forms, commonly used drugs are Diphenhydramine, Hydroxazine, Cyproheptadine
Antihistamines
Injectable, oral or topical, SE include immunosuppression, elevated liver enzymes, iatrogenic Cushings, steroids vary in potency; commonly used drugs are: prednisolone, dexamethasone, hydrocortisone, betamethasone
Steroids
5 types of antiparasitics
- Ivermectin;
- Fipronil;
- Imidacloprid;
- Selamection;
- Lufenuron/Milbemycin Oxime
Oral or injectable, derm uses include demodex, scabies, ear mites, lice; check heartworm test first, do not use in herding breeds (Collies) also good for intestinal parasites
Ivermectin
Topical or spray, used for fleas, flea larvae, ticks, chewing lice, sarcoptes, chyletiella
Fipronil
Topical, good for adult fleas, many variations of this product exist, check labeling for uses
Imidacloprid
Topical, good for fleas, ear mites, sarcoptes, ticks, also good for heart worm and intestinal parasites
Selamectin
Oral, good for flea eggs, also heart worm and intestinal parasites, does not kill adult fleas
Lufenuron & Milbemycin Oxime
Heart guard is used specifically for:
heartworms; intestinal parasites
B.S antimicrobial, non irritating, kills yeast @ high concentration; shampoo
Chlorhexidine
Antimicrobial, removes exudate, increase concentration;shampoo
Iodine
Antimicrobial, antipruritic, follicle flushing, keratplytic, antiseborrheic; shampoo
Benzoyl Peroxide
Soothing, antipruritic; shampoo
Oatmeal
Keratolytic, keratoplastic;shampoo
Salicylic acid
Same as SA, antimicrobial, anti inflammation, anti parasitic (increased concentration);shampoo
Sulfur
Antipruritic, keratoplastic, preferred for degreasing;shampoo
Tar
Mild local anesthetic, antipruritic; shampoo
Pramoxine
Sprays, ear meds, and shampoos-antipruritic, anti inflammatory;shampoo
Corticosteroids
Used as a dip, yeast fungus, bacteria and parasites;shampoo
Lime Sulfur
Also a dip, used for demodex, flammable, can be irritating and may cause sedation; shampoo
Amitraz
Pus in the skin; any purulent skin dz; AKA: skin infection
Pyoderma
Etiology of pyoderma
staphylococcus; almost always infection is secondary to another primary cause
Underlying factors of pyoderma:
high temp and humidity; ALLERGIES-atrophy, food allergy, flea allergy; ENDOCRINE DZ'S; nutrition; ECTOPARASITES; Overuse of steroids; Idiopathic=dont know cause
Symptoms of pyoderma:
Pruritis and self trauma; inflammation and erythema; alopecia; pustules; papules; hyperpigmentation; epidermal collarette; exudate
2 types of classification for pyoderma:
Superficial & deep
Contains pustules, erythema; surface lesions only
superficial
Examples of superficial pyoderma:
hotspots (acute moist dermatitis);
skin fold infx(due to anatomy);
allergies
Extends to dermis; possibly systemic, see ulcers and fistulas
Deep
5 things you can perform for diagnosis for pyoderma:
- Skin scrapes(mites/bacteria);
- Impression smears (exudate, bacteria, mites);
- Culture(reserved for deep infx, help ID bacteria and best tx);
- Biopsy(neoplasia, autoimmune dz);
- Bloodwork(endocrine, allergies)
Treatment of pyoderma depends on what?
On extent of the infection
Treatment may only need ______ treatment
topical
Moderate to ______ cases require systemic treatment
severe
4 types of treatment for pyoderma:
- treat underlying cause if able;
- Antibiotics(topical vs. systemic tx;
- Antipruitics(steroid vs. non-steroid)(topical or systemic);
- Flea control
Atopy AKA
skin allergy
An inflammatory dermatosis resulting from hypersensitivity to allergens from production of excess IgE. Its characterized by its chonicity, pruritis, typical lesion distribution
Atopy