NAVLE - O.O.O's Review 18 Flashcards
– parakeratosis
Zinc deficiency
Exudative dermatitis (Greasy pig) –
Staph hyicus
– Lameness, swollen joints, incoordination, nystagmus
Streptococcal meningitis
– Diamond-shaped skin lesion
Erysipela
– purple/ cyanotic discolouration of the ear tip, hemorrhage in the kidney
Salmonella cholerasuis
– Hemorrhagic diarrhea in new born
Clostridium perfringes
– Feces with the appearance of wet cement
Brachispira pilosicoli
– 8-12 weeks, diarrhea, dyspnoea, enlarged inguinal lymph node
Circovirus
– Abortion, mummified fetus
Porcine parvovirus
– 1-week old piglets, high morbidity and mortality
TGE
- Diarrheic piglet at 5 days to 3 weeks
Rotavirus
– Many dead mummified piglets, incoordination, seizures
Aujesky’s
– Pulmonary edema, hydrothorax, mycotoxin
Fumonisin toxicity
– Late abortion, necrotizing interstitial pneumonia
PRRS
– Yellowish foul-smelling diarrhea, oocyst
Coccidiosis
– Rectal strictures
Salmonella Typhimurium
– Porcine proliferative enteritis
Lawsonia
– White milk spots Rx. Pyrantel, Benzimidazoles, ivermectin
Ascaris
– H2 receptor antagonist
Famotidine
– diarrhea, dark red discoloration of ears/ ventral abdomen, fever
Salmonella typhinurium
Iron deficiency anemia –
Microcytic, hypochromic
– high morbidity, low mortality
Coccidiosis
– B-mode ultrasonography
Pregnancy dx
– late gestation, abortion, mummified fetus, coughing
Porcine reproductive and respiratory syndrome (PRRS)
– Purulent vulva discharge, bred but shows return to estrus
Endometritis
– Induces farrowing
PGF2alfa
– Uncooked muscle, dead carcass
Trichinella spiralis
– Endocarditis, thickened meninges, neurologic disease
Streptococcus suis
– estrogenism, vulvovaginitis, fusarium
Zearalenone
Ergot e.g Claviceps, rye, wheat –
Necrosis of extremities
– Profuse salivation
Slaframine
– dry cough, pulmonic lesions in cardia/ apical lobe
Mycoplasma hyopneumoniae
– mucosa with mucous, blood, fibrin, necrotic debri
Swine dysentery
– porcine proliferative enteritis
Lawsonia intracellularis
– Edema disease
E.col (Shiga toxin)
– Ear tip hyperemia
ASF
– Exudative bronchiopneumonia
Pasteurellosis
– Chronic erysipelas
Lameness
chronic erysipelas
Lameness
Glasser’s disease and Rx –
poly arthritis Rx. Gentamycin
Swine dysentery – Rx
Lincomycin
– Whitish grey myocardial necrotic foci, fluid in the trachea, pulmonary edema
Encephalomyocarditis virus
Boer effect –
Stimulate estrus in sows
– Most common cause of diarrhea in 7-16 weeks old
Swine dysentery
– Rectal stricture
Salmonella Typhimurium
– Piglet Diarrhea 0-1 week old
TGE
Rotavirus and C. perfringes in piglets –
5 days to 3 weeks
Liver flukes –
Clortusion
– Scaly areas, erythematous edges that enlarge and coalesce, lesion resolves itself. No rx
Pityriasis rosea
– Exudative dermatitis
Greasy pig
– Open mouth breathing, blood-stained nasal or oral discharge, blood in the lungs
Actinobacillus pleuropneumonia
Strongyloides ransomni –
Threadworms
Post weaning multi systemic wasting syndrome –
Mottled lymph nodes/ lungs
– Milk spots from migrating fibrosis
Ascaris suum
– Skin lesions, lameness
Erysipelas
– Thickening and corrugation of the ileum
Lawsonia
– Fibrinous exudate in pleura pericardium
Glasserella parasuis
– healthiest piglet is usually affected (1-2 weeks old)
Edema disease
– Liquid yellow feces with shreds of necrotic debris, enlarged mesenteric lymph node
Salmonella
SIGNS
Excessive licking of the affected area. Alopecic, eroded, thickened, and raised firm plaques with scabs and exudation, usually located on the dorsal aspect of the carpus, metacarpus, tarsus, or metatarsus.
PATHOLOGIC FINDINGS
Histopathology—epidermal hyperplasia, plasmacytic dermal inflammation, folliculitis, furunculosis, perihidradenitis, hidradenitis, and vertical streaking fibrosis.
Acral Lick Dermatitis
Combination of hair loss, scaling, crusting, erythema, papules, hyperpigmentation, and variable pruritus. Diagnosis can be confirmed by direct examination of hairs or scales from lesions or by skin biopsy. Dermoscopy or a Wood’s lamp can be used to identify hairs for culture and/or direct examination. Fungal culture, PCR testing confirms the presence or absence of fungal DNA on the hair coat.
Dermatophytosis (ringworm)
Glowing hair under woodlamp reveals infection Rx: Itraconazole
Dermatophytosis (ringworm)
Any combination of head shaking, pain with ear manipulation, malodor, exudate, erythema, erosion, ulceration, swelling, or ceruminous gland hyperplasia. Coccal organisms are usually staphylococci or streptococci. Rod-shaped organisms are usually Pseudomonas aeruginosa, Escherichia coli, or Proteus mirabilis
Otitis externa
Runny nose that goes on for a long time Occasional bloody nose Excessive tears (epiphora) Excessive sneezing Bad breath (halitosis) Loss of appetite (anorexia) Seizures Bulging eyes Nose seems deformed Dx – Clinical signs, CT, CBC
Squamous cell carcinoma
Relatively common skin tumors in dogs. They are most frequently identified on the head, ears, lips, mouth, and legs of mature to aged animals.
Canine extramedullary plasmacytomas
- flaky skin, red patches on the skin surface, raised and ulcerated areas, or lumps deep within the skin.
Cutaneous (Skin) Lymphosarcoma : Epitheliotropic lymphosarcoma
Benign tumors of fat (adipose tissue) and are common in dogs. They generally occur in older, obese females, most commonly on the trunk and near the tops of the legs.
Lipomas
The most common malignant tumor seen in dogs. They may be seen in dogs of any age but occur most commonly in dogs 8 to 10 years old.
Mast cell tumors
The most commonly develop in older animals. Most malignant melanomas appear as raised, generally ulcerated lumps that may or may not be darkened.
Malignant melanomas
A type of tumor found near the anus in dogs. Up to 95% of male dogs with these tumors are cured by castration.
Perianal gland tumors
– Common in dogs with liver shunt
Urate
Walnut toxicity in horses –
Laminitis
To reveal lameness in fracture of navicular –
Palmar digital N. block
– Liver has bull’s eye lesion
Histomoniasis
– 3.5-4 years
Cow’s 4th incisors
- 2-3 d old pigs with hemorrhagic enteritis, mucosal hemorrhage, emphysema
C. perfringes (C)
Cobblestone, Moroccan leather –
Ostertagia, Rx Ivermectin
– Tachycardia, increased BP results in retinal hemorrhage/ blindness
Hyperthyroidism
Equine granulocytic ehrlichiosis –
Anaplasma
Corneal ulcer in horse, gram –ve rod –
Pseudomonas
– Photosensitizing agent in Johnson grass, horse bush
Phylloerythrin
– Productive and destructing lesion affecting distal radius, most common primary bone tumor in dogs
Osteosarcoma
– Damage to the sympathetic innervation of the eye on the same side of the lesion
Horner’s
– Horses and cats in Dec and January, ovaries have small follicles and no CL
Anestrus
– Can predispose to laminitis
Equine HAC
– Indicates Liver and muscle damage in dogs and cats
ALT
– Most common carcinoma in Equine stomach
Squamous cell carcinoma
– Decreases as prevalence decreases
PVP
– Test for Rare disease, early dx improves prognosis
Sensitive test
– Drug that causes Acute renal failure in horses
Neomycin
Extensor rigidity in the forelimb of a cat with Schiff-Sherrington –
Subdural white matter compression at C6-T3
Following RX with erythromycin for strangles, the mare can contact ? -
C.difficile
Prevention of G.pig with scabby hind feet –
Improve sanitation, provide smooth flooring
Misshapen eggs –
Reportable
– Thoracic limb (decreased biceps/ triceps muscle tone), Pelvic limb has hyper-reflective patellar and gastrocnemius reflex
C6-T2
Ferret that is weak, depresses, lethargic before a meal –
Insulinoma
Exophthalmos in cattle –
Retrobulbar lymphoma
– Old cat has bilateral thyroidectomy then begins panting, facial rubbing, restlessness
Hypocalcemia
Tooth root abscess in llama –
Bony facial masses
Cow with abnormal pelvic gait after mating –
Tibial nerve
Feline stomatitis –
Periodontal disease
– Acquired megaesophagus
Myasthenia gravis
Owner develops a pruritic rash after contact with piglet –
Sarcoptes scabei
– Most common cause of toxin-induced seizures
Organophosphates
Reverse C sign –
GDV
Reverse D sign –
Splenic torsion
“Gull shaped” rods –
Campylobacteriosis
Corneal dermoid –
Congenital tumor
- proximal renal tubules of the kidney do not properly reabsorb electrolytes and nutrients back into the body, but instead “spill” them in the urine - particularly Basenjis dogs.
Fanconi syndrome
– Smooth, UTI, acidify diet
Struvite
– Spikey stones
Calcium oxalate
- Chronic nasal discharge containing mucus, pus, or blood is the most common sign. Periodic sneezing, bleeding from the nose, and snoring may occur. Dx: X-rays, CT scan
Nasal tumors
More than 80% are malignant (cancerous). The most common signs in dogs include coughing, weight loss, lethargy, and labored breathing. Dx: Chest x-rays
Primary lung tumors in dogs -
- The complete anorexia and decreased milk production, tachycardia, and right-side ping together indicate a probable abomasal volvulus.
Abomasal volvulus
Enterolithiasis -
alfalfa hay
Ileal impactions -
tapeworm infections
- inability to fully close the eyelids
Lagophthalmos
The first sign of progressive retinal atrophy is usually
night blindness
– Abortion, retained placenta, metritis, no sign in younger ones
Brucellosis
- Autolyzed fetus
Neospora
EBA (Foothill) abortion –
Ticks, abortion
- Early term abortion
Tritrichomonas, BVD