Microbial Causes of Bacterial Skin Disease

<p>Ectoparasites</p> Signup and view all the answers

<p>Dogs</p> Signup and view all the answers

<p>A lack of lipid seal at opening to hair follicles</p> Signup and view all the answers

<p>S hyicus</p> Signup and view all the answers

<p>A disease caused by mechanical damage of the skin</p> Signup and view all the answers

<p>Immunocompromise</p> Signup and view all the answers

<p>Mechanical damage to the skin</p> Signup and view all the answers

<p>Lesions contain small yellow granules</p> Signup and view all the answers

<p>Nocardia</p> Signup and view all the answers

<p>All of the above</p> Signup and view all the answers

<p>Only if cellulitis/pyrexia involved</p> Signup and view all the answers

<p>Minimize the use of antibiotics</p> Signup and view all the answers

<p>Toxins produced by bacteria</p> Signup and view all the answers

<p>Radiography</p> Signup and view all the answers

<p>Address the underlying cause</p> Signup and view all the answers

<p>It forms filamentous bacterial granulomas</p> Signup and view all the answers

<p>Staphylococcal infection</p> Signup and view all the answers

<p>Superficial pyoderma</p> Signup and view all the answers

<p>Associated with thickening of skin/subcutaneous tissue</p> Signup and view all the answers

<p>Pyogenic - mainly neutrophils</p> Signup and view all the answers

<p>Acute moist dermatitis</p> Signup and view all the answers

<p>Pseudomonas infection</p> Signup and view all the answers

<p>Cellulitis</p> Signup and view all the answers

<p>Bacterial granulomatous dermatitis</p> Signup and view all the answers

<p>Mycobacterial infection</p> Signup and view all the answers

<p>Canine intertrigo</p> Signup and view all the answers

<p>Furunculosis</p> Signup and view all the answers

<p>Common in cats</p> Signup and view all the answers

<p>Cellulitis</p> Signup and view all the answers

<p>Cytology</p> Signup and view all the answers

<p>Kill the organism</p> Signup and view all the answers

<p>Abscess</p> Signup and view all the answers

<p>If cellulitis or pyrexia is involved</p> Signup and view all the answers

<p>Vascular damage of the skin leading to necrosis</p> Signup and view all the answers

<p>Deep pyoderma</p> Signup and view all the answers

<p>Bacterial granulomatous dermatitis</p> Signup and view all the answers

<p>Surface pyoderma</p> Signup and view all the answers

<p>Deep pyoderma</p> Signup and view all the answers

<p>Impetigo</p> Signup and view all the answers

<p>Exfoliative superficial pyoderma</p> Signup and view all the answers

<p>Surface pyoderma, Superficial pyoderma, Deep pyoderma, Bacterial granulomatous dermatitis, Skin lesions secondary to systemic bacterial infection or infection with toxin-producing bacteria</p> Signup and view all the answers

<p>Bacteria multiply on skin surface only, mixed microbial overgrowth +/- neutrophilic inflammation, canine intertrigo ('skin fold pyoderma’), acute moist dermatitis (pyotraumatic dermatitis, 'hotspots’), bacterial overgrowth syndrome</p> Signup and view all the answers

<p>Infection within epidermis +/or hair follicle, papules/pustules leading to crust, epidermal collarettes/scale, follicular plugs, alopecia, primarily neutrophilic inflammation, bacterial folliculitis, impetigo, exfoliative superficial pyoderma, dermatophilosis, fleece rot, greasy pig disease (Exudative epidermitis)</p> Signup and view all the answers

<p>Infection outside epidermis or hair follicle epithelium, rupture of hair follicle wall (furunculosis), penetrating wounds</p> Signup and view all the answers

<p>Rupture of hair follicle wall, penetrating wounds</p> Signup and view all the answers

<p>Poorly-delineated suppurative inflammation of deep subcutaneous connective tissue, nodular masses that may involve bone, vascular damage of the skin leading to necrosis</p> Signup and view all the answers

<p>Cytology, bacterial culture, biopsy</p> Signup and view all the answers

<p>Common clinical signs of haematogenous spread (sepsis) in bacterial skin infections include thickening of skin/subcutaneous tissue, presence of nodules, and draining sinuses.</p> Signup and view all the answers

<p>Furunculosis is the extension of folliculitis where the rupture of hair follicle wall occurs, allowing microbes and free keratin to enter the dermis. It is commonly associated with pyogranulomatous inflammation, characterized by the presence of neutrophils and macrophages.</p> Signup and view all the answers

<p>An abscess is a localized collection of pus in the dermal or subcutaneous tissue, surrounded by granulation tissue or fibrous connective tissue. In large animals, abscesses are commonly caused by wounds and foreign bodies, while in cats, they can have a wide range of organisms involved depending on the species and cause of abscessation.</p> Signup and view all the answers

<p>Cellulitis is poorly-delineated suppurative inflammation of deep subcutaneous connective tissue. Some organisms can cause malodour and gas production in cellulitis, such as Clostridia in sheep and cattle.</p> Signup and view all the answers

<p>Bacterial granulomatous dermatitis is caused by the traumatic implantation of saprophytic organisms. It can manifest as mycobacterial granulomas/pyogranulomas in cats or non-filamentous/filamentous bacterial granulomas depending on the bacteria involved. Examples of bacteria that can cause bacterial granulomatous dermatitis include Staphylococci, Streptococci, Actinobacillus, Nocardia, and Actinomyces.</p> Signup and view all the answers

<p>Skin lesions that can occur as a result of systemic bacterial infections include vascular damage and necrosis. Infections with toxin-producing bacteria can lead to acute febrile illness with shock, visceral disease, and cutaneous lesions, similar to toxic shock syndrome in humans.</p> Signup and view all the answers

<p>Common diagnostic tests for bacterial skin infections include cytology (visualizing inflammatory cell type and microorganisms), culture (for pustule or deep tissue biopsy), and histopathology (skin biopsy). Special stains, such as Ziehl-Neelsen for mycobacteria, may also be used.</p> Signup and view all the answers

<p>The broad principles of treatment for bacterial skin diseases include killing the organism, minimizing the use of antibiotics where possible, using topical antibacterials for surface/superficial infections, using systemic antibiotics for deep infections based on culture and susceptibility testing, enhancing the body's defenses where possible, and addressing the underlying cause whenever possible.</p> Signup and view all the answers