Dermatology

Why are dermatology cases considered one of the leading causes of health concerns even if they are not a leading cause of mortality?

Dermatology cases are typically insidious and chronic disorders that rarely result in a complete cure, requiring long-term management.

According to the 2014 VPI and 2019 data from various companies, which condition appeared on the top insurance claim list for all five dog insurance companies?

Otitis.

What does the mnemonic 'O.S.M.A.N.' stand for regarding the priority of management in dermatology cases?

Otitis, Pyoderma (Staph), Yeast (Malassezia), Allergy, and Normal Itch.

In dermatology, if a patient's weight falls between two tablet sizes, what is the specific rule for dosing?

Always round UP.

What is the diagnostic purpose of 'kneading' or squeezing the skin prior to performs a skin scraping?

To extrude $Demodex$ mites out of the hair follicles.

What are the '3DDx' (three major differential diagnoses) for folliculitis in dogs?

$Demodex$, bacteria (Staph), or Dermatophytosis.

Which specific cat mite is described as highly contagious and surface-dwelling rather than follicular?

$Demodex\,gatoi$.

What clinical sign is specifically suggestive of Scabies (Sarcoptic Mange) and is elicited by rubbing the ear to trigger a scratching reflex?

The Pinna-femoral reflex.

What is the characteristic microscopic feature of $Sarcoptes$ mites that is essential for identification?

Long unjointed stalks on the ends of the legs.

Which stages of the flea life cycle are described as positively geotactic (moving toward the ground) and negatively phototactic (moving away from light)?

Flea larvae.

What is the standard anti-inflammatory dose for Prednisone used in Flea Allergy Dermatitis?

$1\,mg/kg$ daily, then every other day.

What is the 'gold standard' for the definitive diagnosis of Dermatophytosis?

Fungal culture with microscopic identification of the organism.

What is the characteristic microscopic appearance of $Malassezia\,pachydermatis$?

Round to oval or 'peanut-shaped' budding structures that stain gram-positive (blue/purple).

What are the two active shampoo ingredients recommended for cutting grease in cases of Malassezia?

Selenium sulfide and benzoyl peroxide.

What clinical lesion is described as a 'solid, elevated lesion $< 1.5\,cm$ that contains pus and some serum'?

A Pustule.

What is the most common organism involved in the majority of canine pyodermas?

$Staphylococcus\,pseudintermedius$.

Which condition is an acute dermatologic emergency characterized by intense focal pruritus and rapidly progressive edema, erythema, and alopecia?

Acute Moist Dermatitis (also known as 'Hot spots').

What is the mechanism of action for Oclacitinib ($Apoquel$)?

It is a Janus kinase ($JAK1$) inhibitor that down-regulates cytokines like $IL-31$, major players in canine pruritus.

How does Lokivetmab ($Cytopoint$) differ from Oclacitinib in its method of action?

It is a caninized monoclonal antibody ($IgG$) that binds specifically to $IL-31$ before it can bind to the JAK receptor.

What is the primary diagnostic tool for identifying an adverse reaction to food (Food Hypersensitivity)?

An elimination diet trial (using novel protein or hydrolyzed protein) lasting a minimum of $8-12$ weeks.

What autoimmune condition is characterized by inflammation, crusting, and depigmentation of the nasal planum and is exacerbated by UV light?

Discoid Lupus Erythematosus ($DLE$).

What is the 'key' diagnostic test for managing every case of Otitis Externa?

Cytology.

Why is deep sedation or anesthesia required for a 'deep' ear cleaning?

To safely visualize the tympanic membrane and allow for the use of suction or catheters to remove debris/biofilm without causing trauma.