Relier Pairs Etiology, Pathogenesis and Definition for Exam 2Version en ligne Skin, Respiratory, Cardio and Neuro Pathology par Jessica Petry 1 Bilateral, symmetric necrosis (malacia) of the basal ganglia, internal capsule, thalamus, and substantia nigra 2 Mycotoxic leukoencephalomalacia 3 Hansen type 2 4 Hansen type 1 5 Nigropallidal encephalomalacia 6 Polioencephalomalacia 7 Edema disease of recently weaned pigs on high-protein rations 8 Visceral Gout 9 Histophilus somni 10 Bacteria in poorly fermented silage that impacts Cranial Nerve V release of nucleus pulp material into the spinal canal, resulting in compression protrusion of the annulus fibrosus into the spinal canal, resulting in compression (stays encapsulated) Thiamine (Vitamin B1) deficiency, Sulfur/Lead/Salt toxicity Escherichia coli Thrombotic meningoencephalitis, intralesional bacterial colonies Prolonged ingestion of yellow star thistle or Russian knapweed Clostridium perfringens Type D Listeria monocytogenes High protein diet, Vitamin A deficienct Mycotoxin = fumonisin B1 1 Lush Green Grass toxin 2 Moldy Sweet Potato Toxin 3 Ovine Progressive Pneumonia 4 Shipping Fever of Cattle 5 Porcine Contagious Pleuropneumonia 6 Enzootic Pneumonia of Pigs 7 Rhodococcus Pneumonia of Foals 8 Caprine Arthritis Encephalitis 9 Equine Multinodular Pulmonary Fibrosis 10 Purple mint toxin Mannheimia haemolytica Visna-Maedi Virus Fusarium solani produces 4-ipomeanol Equine gamma herpesvirus 5 CAEV Actinobacillus pleuropneumoniae Mycoplasma hyopneumoniae tryptophan, converted to 3-methyl-indole Rhodococcus equi Ketones 1 Traumatic reticulopericarditis (TRP): hardware disease 2 Non-Progressive Form of porcine atrophic rhinitis 3 Strangles 4 Thrombophlebitis 5 Arteritis 6 Progressive Form of porcine atrophic rhinitis 7 Necrotic Laryngitis 8 Infectious bovine rhinotracheitis 9 Artherosclerosis 10 Acute Bovine Pulmonary Edema and Emphysema Dogs with hypothyroidism or diabetes Fusobacterium necrophorum Strongylus vulgaris, Heartworm, SLE, RMSF, E. rhusiopathiae Foreign body in reticulum → penetrates reticular wall and diaphragm → enters pericardial sac → introduces infectious agents Streptococcus equi Bordetella bronchiseptica Ingested toxins activated by p450 enzymes Pasteurella multocida types A and D Bovine herpesvirus -1 FIP, hepatic abcesses 1 Pustule 2 Nodule 3 Macule 4 Crust 5 Cyst 6 Wheal 7 Vesicle 8 Bulla 9 Callus 10 Fissure 11 Excoriation 12 Erosion 13 Collarette 14 Papule 15 Lichenification 16 Plaque 17 Ulceration 18 Scale 19 Comedo Raised, firm regions < 1cm in diameter Deep linear break in the epidermis to the dermis Follicle distended/plugged by keratin/sebum Dried Exudate Raised, often solid mass ≥1cm in diameter in dermis/subcutis Full loss of Epidermis Raised fluid-filled intra- or sub-epidermal pockets > 1 cm Layer of scale that expands peripherally Raised focus of dermal edema, often with central pallor and erythematous rim Raised, flat-topped region ≥1cm in diameter in dermis/epidermis Epithelial lined cavity in dermis/subcutis Thickened, firm focus or region of epidermis Epidermal pocket of purulent discharge Shallow linear epidermal clefts Flat region of skin that has a color change Extensive/diffuse epidermal thickening +/- increased pigmentation Raised fluid-filled intra- or sub-epidermal pockets < 1 cm Fragmented sheets or corneocytes Partial loss of epidermis 1 Dermatophilosis 2 Feline Ulcerative Dermatitis and Stomatitis 3 Cutaneous manifestations of sepsis 4 Greasy Pig Disease 5 Impetigo/Folliculitis 6 Pyotraumatic Dermatitis 7 Canine Papillomatosis 8 Intertrigo 9 Granulomatous dermatitis/panniculitis 10 Contagious Pustular Dermatitis Dermatophilus congolensis Staphylococcus pseudointermedius FHV-1 Mycobacterium Hot spots Skin-fold dermatitis Ovine parapoxvirus Erysipelothrix rhusiopathiae (pigs) Ricketssia rickettsia (dogs) CPV-1 Staphylococcus hyicus 1 Equine cutaneous papillomas 2 Equine aural papillomas 3 Demodecosis 4 Zygomycosis 5 Equine genital papillomas 6 Dermatophytosis 7 Oomycosis 8 Malassezia dermatitis 9 Feline Cutaneous and Oral Papilloma 10 Facial/Localized Lupus Erythematosus Malassezia pachydermatis Conidiobolus sp EcPV-3 EcPV-1 FcPV-1,2,3 Demodex canis EcPV-2 Microsporum and Trichphyton spp. Self reactive T-cells target keratinocytes → keratinocyte death → erosion to ulceration Pythium insidiosum 1 Type 4 Solar Injury 2 Calcinosis Cutis 3 Lick granuloma 4 Ergotism 5 Vitiligo 6 Type 2 Solar Injury 7 Type 3 Solar Injury 8 Streptococcus equi equi / Auto-immune (Strangles) 9 Type 1 Solar Injury Hyperadrenocorticism Self reactive T-cells target melanocytes → depigmentation, leukotrichia (white hair) Stress Moldy feed infected with Claviceps Purpurea produce ergotamine Hepatic failure to excrete phylloerythrin from hepatotoxic plants and mycotoxins Ingestion/administration from plants or drugs with photodynamic pigments Idiopathic Abnormal porphyrin metabolism from congenital porphyria Purpura hemorrhagica
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