Sterile neutrophilic dermatitis in a cat associated with a topical plant-derived oil flea preventative.

A 4-year-old, female spayed, domestic short hair cat presented with an acute eruption of pustules and bullous plaques after application of a plant-based, essential oil flea preventative. Histopathological evaluation of biopsies revealed severe neutrophilic infiltrate within the dermis and culture was negative. The cat's skin lesions responded rapidly to glucocorticoid monotherapy.

Clinical presentation, treatment and outcome in dogs with pemphigus foliaceus with and without vasculopathic lesions: an evaluation of 41 cases.

Background: Concurrent vasculopathic lesions in dogs with pemphigus foliaceus (PF) have been observed anecdotally yet not reported in the literature. Any association with prognosis is unclear.

Hypothesis/objectives: To compare clinical features and outcome of PF in dogs with and without vasculopathic lesions.

Multi-drug and methicillin resistance of staphylococci from canine patients at a veterinary teaching hospital (2006-2011).

Background: Over the past 10 years, an increase in methicillin and multi-drug resistant staphylococcal species has been identified worldwide and anecdotally reported within our veterinary teaching hospital.

Objective: To determine the methicillin resistance (MR) and multi-drug resistance (MDR) patterns of staphylococcal species isolated from canine patients between 2006 and 2011.

Animals And Methods: Staphylococcal isolates (n = 1069) were cultured from the canine patient population of the veterinary teaching hospital.

Comparison of hair follicle histology between horses with pituitary pars intermedia dysfunction and excessive hair growth and normal aged horses.

Background: Pituitary pars intermedia dysfunction (PPID) in older equids is commonly recognized by a long hair coat that fails to shed.

Objective: The aim of this study was to compare hair follicle stages in PPID-affected horses with excessively long hair coats with the stages of normal aged horses (controls) and to compare hair follicle stages in PPID-affected horses after 6 months of treatment with pergolide mesylate with those of control horses.

Animals: Eight PPID-affected horses and four normal, age-matched, control horses.

Investigation on the effects of ciclosporin (Atopica) on intradermal test reactivity and allergen-specific immunoglobulin (IgE) serology in atopic dogs.

The ability to use ciclosporin (Atopica®: Novartis Animal Health, Greensboro, NC, USA) prior to intradermal testing (IDT) would help avoid exacerbation of clinical disease that can be associated with drug withdrawal. This study evaluated the effects of 30 days of administration of ciclosporin at a dose of 5 mg/kg once daily on IDT reactivity (immediate phase reactions) in a group of dogs with atopic dermatitis (AD) with initial positive IDT reactions. 16 dogs diagnosed with AD were included in the study.

Use of the D-dimer assay for diagnosing thrombosis in cases of canine cutaneous vasculitis.

The objectives of this study were to measure D-dimer concentrations and assess their value in diagnosis of thrombosis in three groups of dogs; (i) dogs with cutaneous vasculitis without histopathological evidence of thrombosis; (ii) dogs with cutaneous vasculitis with histopathological evidence of thrombosis; and (iii) pruritic dogs with erythematous skin and underlying allergic skin disease. D-dimer test results were reported as negative at <250 ng/mL, and positive at > or =250 ng/mL. Ten dogs with a diagnosis of atopic dermatitis and/or cutaneous adverse food reaction were enrolled in the study, and the D-dimer results were <250 ng/mL (eight dogs) and 250-500 ng/mL (two dogs).

Group 1 and 2 Dermatophagoides house dust mite allergens in the microenvironment of cats.

House dust mite allergens (HDMAs) are some of the most common allergens associated with allergic diseases in humans and dogs. The purpose of this study was to determine whether HDMAs could be detected in cat-associated household microenvironments. From 50 cat-only households with 95 cats, dust samples were collected by vacuuming for 2 min m(-2) from three areas where cats slept or rested regularly from September to October 2006.

Measurement of normal middle ear cavity volume in mesaticephalic dogs.

Water-filling and serial computed tomographic (CT) imaging techniques were used to measure normal middle ear cavity volume (MECV) in 18 dogs (10 live dogs, eight cadavers; 36 ears in total). The specific aims of this study were to (1) compare MECV measurements by water-filling and CT techniques and (2) define a model of MECV vs. body weight (BW) from CT values.

Causes of otitis externa.

Dogs with long-standing, chronic, recurrent otitis externa often represent one of the most frustrating types of problems in daily clinical practice. The important aspect of this discussion is that the clinician may be presented with a patient in which the primary chief complaint is otitis externa but a wide variety of disease processes may be causing the problem, including various combinations of the primary, predisposing, and perpetuating causes as discussed previously. The use of a thorough history and general and dermatologic physical examinations often leads the clinician to establish a systematic approach to identify the specific underlying problems.

Comparison of microbial isolates and susceptibility patterns from the external ear canal of dogs with otitis externa.

Otic exudate was obtained from 33 dogs with otitis externa for cytopathology and culture. Two samples were taken from the same location in the external ear canal, for a total of 100 samples. Thirty-six (36%) samples isolated only a single organism, of which 21 (21%) were Malassezia spp.

Cutaneous paecilomycosis in a cat.

A cat was presented for a 2-year history of a recurrent, soft-tissue swelling of the left metacarpal region. The mass was excised and submitted for aerobic and anaerobic bacterial culture, fungal culture, and histopathological examination. Cultures revealed the organism Paecilomyces lilacinus, and histopathological examination showed a nodular mycotic granuloma.

Frequency of isolation and antimicrobial susceptibility patterns of Staphylococcus intermedius and Pseudomonas aeruginosa isolates from canine skin and ear samples over a 6-year period (1992-1997).

Staphylococcus intermedius (S. intermedius) was isolated from 88.6% and 49.