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Veterinary Dermatology

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https://www.readbyqxmd.com/read/28627100/subcutaneous-extraskeletal-osteosarcoma-in-a-metatarsal-footpad-in-a-cat
#1
Ramón Almela, Wolf von Bomhard, Agustina Ansón, Ursula Mayer
BACKGROUND: Extraskeletal osteosarcomas (ESOSAs) are rare neoplasms in humans and animals. In cats, ESOSA has been reported to arise from orbital, ocular, intestinal, mammary and subcutaneous locations. Subcutaneous ESOSA occurs most commonly at sites used for vaccination including interscapular, dorsal lumbar or thigh areas. Previous reports of feline cases have not documented the use of advanced diagnostic imaging to exclude a primary bone tumour. OBJECTIVE: To describe the clinicopathological and advanced imaging findings of a subcutaneous ESOSA occurring in a metatarsal footpad of a cat and to report the one year follow-up status...
June 18, 2017: Veterinary Dermatology
https://www.readbyqxmd.com/read/28626949/diagnosis-and-treatment-of-concurrent-dermal-malignant-melanoma-and-melanocytomas-in-a-pygmy-hippopotamus-choeropsis-liberiensis
#2
Richard A Saunders, Rowena S Killick, Michelle G Barrows, Kelly A Bowlt, Daniella Denk
BACKGROUND: Dermal melanocytic neoplasms are common in some even-toed ungulates (Artiodactyla), yet this entity has not been reported in the pygmy hippopotamus to date. Concurrent occurrence of multiple benign and malignant melanocytic neoplasms is unusual. Malignant transformation occurs in a small percentage of benign melanocytic tumours in people but this phenomenon has not been well documented in animals. OBJECTIVES: To report the diagnosis and treatment of concurrent dermal melanocytomas and malignant melanomas in a pygmy hippopotamus...
June 18, 2017: Veterinary Dermatology
https://www.readbyqxmd.com/read/28585337/ultramicronized-palmitoylethanolamide-counteracts-the-effects-of-compound-48-80-in-a-canine-skin-organ-culture-model
#3
Francesca Abramo, Giulia Lazzarini, Andrea Pirone, Carla Lenzi, Sonia Albertini, Maria F Della Valle, Carlo Schievano, Iacopo Vannozzi, Vincenzo Miragliotta
BACKGROUND: Ultramicronized palmitoylethanolamide (PEA-um) has been reported to reduce pruritus and skin lesions in dogs with moderate atopic dermatitis and pruritus. HYPOTHESIS/OBJECTIVES: A canine ex vivo skin model was used to investigate the ability of PEA-um to counteract changes induced by compound 48/80, a well-known secretagogue that causes mast cell degranulation. ANIMALS: Normal skin was obtained from three donor dogs subjected to surgery for reasons unrelated to the study...
June 5, 2017: Veterinary Dermatology
https://www.readbyqxmd.com/read/28585294/ichthyosis-fetalis-in-a-cross-bred-lamb
#4
Antonio Carlos Lopes Câmara, Pedro Augusto Cordeiro Borges, Silvano Alves Paiva, Felipe Pierezan, Benito Soto-Blanco
BACKGROUND: Ichthyosis is a dermatological disease characterized by varying degrees of generalized hyperkeratosis and alopecia. Two congenital forms of ichthyosis are recognized in animals: fetalis (IF) and congenita. The disease occurs rarely in cattle, swine, dogs, chickens and a goat; it has not been reported in sheep. HYPOTHESIS/OBJECTIVES: To provide clinical, laboratory and pathological assessments of a case of IF in a cross-bred lamb. ANIMALS: A male cross-bred lamb...
June 5, 2017: Veterinary Dermatology
https://www.readbyqxmd.com/read/28560784/reversible-and-cachexia-associated-feline-skin-fragility-syndrome-in-three-cats
#5
Nicla Furiani, Ilaria Porcellato, Chiara Brachelente
BACKGROUND: Feline skin fragility syndrome (FSFS) is an acquired disorder characterized by altered collagen production resulting in an extremely thin and fragile skin. FSFS is associated with diseases characterized by excessive steroidal hormones that can inhibit collagen synthesis. It is also described concomitantly with severe inflammatory, infectious or neoplastic conditions where the pathogenesis remains largely unknown. OBJECTIVES: To describe three cases of FSFS in cats that become cachectic secondary to different causes without glucocorticoid involvement...
May 31, 2017: Veterinary Dermatology
https://www.readbyqxmd.com/read/28544307/afoxolaner-and-fluralaner-treatment-do-not-impact-on-cutaneous-demodex-populations-of-healthy-dogs
#6
Christine M Zewe, Laura Altet, Andrea T H Lam, Lluís Ferrer
BACKGROUND: Fluralaner and afoxolaner are isoxazolines licensed for the treatment of flea and tick infestations. Isoxazolines have also shown efficacy for treatment of demodicosis. Nothing is known about the impact of these compounds on the populations of Demodex in healthy dogs. HYPOTHESIS/OBJECTIVES: The objective of this study was to measure the prevalence of Demodex in the skin of healthy dogs prior to and following the use of either afoxolaner or fluralaner, using real-time PCR (RT-PCR) for Demodex DNA...
May 23, 2017: Veterinary Dermatology
https://www.readbyqxmd.com/read/28544017/evaluation-of-canine-adverse-food-reactions-by-patch-testing-with-single-proteins-single-carbohydrates-and-commercial-foods
#7
Cornelia Johansen, Claire Mariani, Ralf S Mueller
BACKGROUND: Adverse food reaction (AFR) is an important differential diagnosis for the pruritic dog. It is usually diagnosed by feeding an elimination diet with a novel protein and carbohydrate source for eight weeks followed by subsequent food provocation. A previous study demonstrated that patch testing dogs with foods had a high sensitivity and negative predictability for selection of elimination diet ingredients. HYPOTHESIS/OBJECTIVES: The aim of this study was to investigate patch testing with proteins, carbohydrates and dry commercial dog food in dogs to determine whether there was value in patch testing to aid the diagnosis of canine adverse food reaction...
May 22, 2017: Veterinary Dermatology
https://www.readbyqxmd.com/read/28543810/in-vitro-bactericidal-activity-of-blue-light-465-nm-phototherapy-on-meticillin-susceptible-and-meticillin-resistant-staphylococcus-pseudintermedius
#8
Amy H Schnedeker, Lynette K Cole, Gwendolen Lorch, Sandra F Diaz, John Bonagura, Joshua B Daniels
BACKGROUND: Staphylococcus pseudintermedius is the most common cause of bacterial skin infections in dogs. Meticillin-resistant infections have become more common and are challenging to treat. Blue light phototherapy may be an option for treating these infections. HYPOTHESIS/OBJECTIVES: The objective of this study was to measure the in vitro bactericidal activity of 465 nm blue light on meticillin-susceptible Staphylococcus pseudintermedius (MSSP) and meticillin-resistant Staphylococcus pseudintermedius (MRSP)...
May 22, 2017: Veterinary Dermatology
https://www.readbyqxmd.com/read/28543828/demodicosis-in-a-ferret-caused-by-demodex-canis
#9
LETTER
Christine M Zewe, Jennifer Graham, Andrea T H Lam, Lluis Ferrer
No abstract text is available yet for this article.
May 21, 2017: Veterinary Dermatology
https://www.readbyqxmd.com/read/28513001/the-frequency-of-urinary-tract-infection-and-subclinical-bacteriuria-in-dogs-with-allergic-dermatitis-treated-with-oclacitinib-a-prospective-study
#10
Andrew C Simpson, Jennifer R Schissler, Rod A W Rosychuk, A Russell Moore
BACKGROUND: Oclacitinib is a selective Janus kinase inhibitor for the treatment of canine allergic pruritus and atopic dermatitis in dogs. Glucocorticoids and ciclosporin increase urinary tract infection (UTI) frequency in dogs with inflammatory skin disease. OBJECTIVE: Prospective study to evaluate the frequency of UTI and subclinical bacteriuria in dogs with allergic dermatitis receiving oclacitinib. METHODS: Client-owned dogs ≥2 years of age with a history of allergic dermatitis without apparent history of urinary tract disease or predisposition to UTI were included...
May 17, 2017: Veterinary Dermatology
https://www.readbyqxmd.com/read/28503777/determination-of-threshold-concentrations-of-plant-pollens-in-intradermal-testing-using-fluorescein-in-clinically-healthy-nonallergic-cats
#11
Fiona M Scholz, Amanda K Burrows, Craig E Griffin, Russell Muse
BACKGROUND: Currently the same allergen concentrations for canine intradermal testing (IDT) are recommended for feline IDT. Feline skin reactions are subtle and more difficult to read than canine reactions. This difference may be due to suboptimal allergen concentrations used for IDT in cats. HYPOTHESIS/OBJECTIVES: To determine the irritant threshold concentration (ITC) of 16 pollen allergens using serial dilutions of allergen and intravenous fluorescein. The hypothesis tested was that feline IDT currently is performed at suboptimal allergen concentrations for pollens...
May 14, 2017: Veterinary Dermatology
https://www.readbyqxmd.com/read/28470877/in-vitro-comparison-of-the-dermal-penetration-of-three-different-topical-formulations-containing-lasalocid
#12
Evie C Knight, Darren J Trott, Stephen W Page, Sanjay Garg, Qian Zhang, Yunmei Song, Esmaeil Ebrahimie, Paul C Mills, Michael A Shipstone
BACKGROUND: Topical antimicrobial preparations are of utmost importance in treating suspected and confirmed meticillin-resistant Staphylococcus pseudintermedius (MRSP) infections due to the increasing incidence of widespread resistance to systemic antimicrobials. Lasalocid is active against MRSP in vitro and this may become an important topical antimicrobial for the treatment of canine pyoderma. HYPOTHESIS/OBJECTIVES: To determine effects of various formulation types on penetration and retention of lasalocid applied to canine skin in vitro...
May 3, 2017: Veterinary Dermatology
https://www.readbyqxmd.com/read/28470871/survival-of-staphylococcus-pseudintermedius-in-modified-romanowsky-staining-solutions
#13
Angus Misan, Wei Yee Chan, Darren Trott, Peter B Hill
BACKGROUND: Stains that are used regularly for patient-side diagnosis to rapidly identify bacterial and fungal infections could become contaminated by common pathogens, such as Staphylococcus pseudintermedius, during slide immersion. HYPOTHESIS/OBJECTIVES: To determine whether the inoculation of S. pseudintermedius into modified Romanowsky type stains (Quick Dip(®) ) results in viable bacterial contamination and whether this is influenced by the addition of organic debris (canine hair and skin)...
May 3, 2017: Veterinary Dermatology
https://www.readbyqxmd.com/read/28439997/therapeutic-effectiveness-of-calcineurin-inhibitors-in-canine-vesicular-cutaneous-lupus-erythematosus
#14
Frane Banovic, David Robson, Monika Linek, Thierry Olivry
BACKGROUND: Oral and topical calcineurin inhibitors (CIs) have been reported to lead to complete lesion remission in several dogs with vesicular cutaneous lupus erythematosus (VCLE). OBJECTIVES: To report retrospectively on the effectiveness and adverse effects of systemic (ciclosporin) and/or topical (tacrolimus/pimecrolimus) CIs in 11 dogs with VCLE. METHODS: Inclusion criteria were: (i) presence of characteristic annular, polycyclic or serpiginous ulcerations distributed over the groin, axillae and/or ventral abdomen; (ii) a histopathological diagnosis of VCLE (i...
April 24, 2017: Veterinary Dermatology
https://www.readbyqxmd.com/read/28439995/scleromyxoedema-in-a-dog
#15
Aurore F Laprais, Petra Bizikova, Erin W Lashnits, Alison Tucker, Keith E Linder
BACKGROUND: In humans, scleromyxoedema is a chronic progressive skin condition traditionally characterized by deposits of mucin, increased number of fibroblasts and fibrosis in the skin, and by systemic disease. Thyroid disease is typically absent. A monoclonal gammopathy is usually present, as are other comorbidities. Descriptions of scleromyxoedema in the veterinary literature are limited to a single feline case. One dog, previously reported as having papular mucinosis, exhibited features that matched the more current diagnostic criteria of scleromyxoedema...
April 24, 2017: Veterinary Dermatology
https://www.readbyqxmd.com/read/28393458/increased-filaggrin-metabolizing-enzyme-activity-in-atopic-skin-a-pilot-study-using-a-canine-model-of-atopic-dermatitis
#16
Natalia Fanton, Domenico Santoro, Luisa Cornegliani, Rosanna Marsella
BACKGROUND: Filaggrin (FLG) and its metabolites are essential for skin barrier function and hydration of the stratum corneum. Alteration of the FLG metabolism could be the basis for an abnormal skin barrier in allergic dogs. OBJECTIVES: To investigate the expression and distribution of calpain-1, caspase-14, furin and matriptase, four enzymes involved in FLG metabolism, in the skin of atopic and healthy beagles. METHODS: Skin biopsies were collected from four healthy and four atopic beagles before and after allergen exposure...
April 9, 2017: Veterinary Dermatology
https://www.readbyqxmd.com/read/28386956/comparison-of-cellular-location-and-expression-of-plakophilin-2-in-epidermal-cells-from-nonlesional-atopic-skin-and-healthy-skin-in-german-shepherd-dogs
#17
Brita Ardesjö-Lundgren, Katarina Tengvall, Kerstin Bergvall, Fabiana H G Farias, Liya Wang, Åke Hedhammar, Kerstin Lindblad-Toh, Göran Andersson
BACKGROUND: Canine atopic dermatitis (CAD) is an inflammatory and pruritic allergic skin disease caused by interactions between genetic and environmental factors. Previously, a genome-wide significant risk locus on canine chromosome 27 for CAD was identified in German shepherd dogs (GSDs) and Plakophilin-2 (PKP2) was defined as the top candidate gene. PKP2 constitutes a crucial component of desmosomes and also is important in signalling, metabolic and transcriptional activities. OBJECTIVES: The main objective was to evaluate the role of PKP2 in CAD by investigating PKP2 expression and desmosome structure in nonlesional skin from CAD-affected (carrying the top GWAS SNP risk allele) and healthy GSDs...
April 6, 2017: Veterinary Dermatology
https://www.readbyqxmd.com/read/28386939/should-precision-medicine-be-encouraged-in-veterinary-dermatology
#18
LETTER
Ramón M Almela, Wolfgang Bäumer
No abstract text is available yet for this article.
April 6, 2017: Veterinary Dermatology
https://www.readbyqxmd.com/read/28378419/successful-treatment-of-pemphigus-foliaceus-in-a-berrichon-du-cher-ram-with-methylprednisolone-acetate
#19
Bianca Lambacher, Julia Schoiswohl, Rene Brunthaler, Thomas Wittek, Reinhild Krametter-Frötscher
BACKGROUND: Pemphigus foliaceus is a severe, autoimmune blistering skin disease, which is described in humans and some animal species. In small ruminants pemphigus foliaceus has rarely been described and, to the best of the authors' knowledge, little information is available about successful treatment in sheep. AIM: This case report describes a Berrichon du Cher ram with the presumed diagnosis of pemphigus foliaceus. METHODS: The ram was treated with methylprednisolone acetate 40 mg at a dosage of 2...
April 4, 2017: Veterinary Dermatology
https://www.readbyqxmd.com/read/28370574/two-cutaneous-horns-associated-with-canine-papillomavirus-type-1-infection-in-a-pit-bull-dog
#20
LETTER
Elizabeth Falk, Christian E Lange, Sammuel Jennings, Lluis Ferrer
No abstract text is available yet for this article.
April 2, 2017: Veterinary Dermatology
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