Dermatology Diagnostics: Skin Scrapes, Hair Plucks, and More
Parasites, such as chiggers and scabies-causing mites, can cause tremendous itching. Fungal organisms, such as dermatophytes, can affect the hair, resulting in fracturing and large areas of crusting, nodules, or excoriations. Not all dermal problems come from external threats; various breed-related issues, such as color-dilution alopecia, pattern baldness, and many autoimmune diseases, can develop over time. Here’s how to investigate some dermal conditions in cats and dogs.
Dermatology Diagnostics: Cutaneous Biopsy
Biopsy is often an important diagnostic step in determining the cause of cutaneous disease. An accurate diagnosis requires appropriate timing of the biopsy, careful site selection and biopsy technique, selection of a dermatopathologist.
The Challenge of Chronic Otitis in Dogs: From Diagnosis to Treatment
Understanding the causes and effects of otitis externa can aid in diagnosis and treatment of this dermatologic infection.
Canine chronic and recurrent otitis externa can be extremely challenging to treat and require multifactorial, step-by-step strategic plans. We look at how to diagnose and treat otitis successfully.
Dermatology Diagnostics: Cutaneous Cytology
The best method for obtaining material from the ear is with a cotton-tipped applicator; however, the health of the ear may limit access to sampling sites. For example, if a dog has end-stage proliferative ear disease, the degree of stenosis…
Updates on the Management of Canine Demodicosis
Canine demodicosis is a common inflammatory parasitic skin disease believed to be associated with a genetic or immunologic disorder. This disease allows mites from the normal cutaneous biota to proliferate in the hair follicles and sebaceous glands, leading to alopecia, erythema, scaling, hair casting, pustules, furunculosis, and secondary infections. The face and forelegs to the entire body surface of the dog may be affected. Three morphologically different types of Demodex mites exist in dogs.
Dilemmas in Dermatology: Pearls & Pitfalls
Douglas J. DeBoer, DVM, Diplomate ACVD University of Wisconsin Certain skin diseases universally present diagnostic and/or treatment dilemmas for general practitioners and specialists alike, and opinions abound on the “best” way to handle these conditions. This uncertainty largely reflects our lack of knowledge about these skin diseases and our relative inability to make evidence-based statements. …
What is New in the Diagnosis and Management of Canine Atopic Dermatitis
Sandra N. Koch, DVM, MS, Diplomate ACVD University of Minnesota Canine atopic dermatitis (CAD) is a prevalent, multifaceted, pruritic skin disease with a complex etiopathogenesis (Figure 1). In recent years, remarkable progress in the understanding of CAD has led to new diagnostic and therapeutic strategies. UPDATES ON PATHOGENESIS OF CAD Not Always IgE Although …
Treating Resistant Skin Infections in Dogs
The increasing prevalence of methicillin resistance has made treating pyoderma challenging. This article presents the clinical manifestations, methods for diagnosis, and treatments for drug-resistant canine pyoderma infections.
Pyoderma is a common skin disorder in small animal practice. Now that the major canine pathogen, Staphylococcus pseudintermedius, has acquired methicillin resistance, treatment has become more challenging and more expensive. Keys to success in treatment and prevention require: Prompt identification and treatment of the underlying cause Use of culture and sensitivity to guide antibiotic use …
Feline Dermatology: Cats Are Not Small Dogs
Lori A. Thompson, DVM, Diplomate ACVD Dr. Thompson brings you practical tools to use in everyday practice when it comes to feline dermatology, including tips for identifying the right diagnosis and specific disease components. A cat’s job in life is to question all the rules and make us—veterinarians and pet owners—scratch our heads and puzzle …