Gross Pathology of Swine 2 Flashcards
Liver, nervous system, repro, urinary, integument, musculoskeletal
Cause of larval migrans in liver; which is worse?
Ascaris suum
Stephanurus dentatum (will tear up hilus of kidney)
Differentials for liver necrosis
Pseudorabies
Gram - sepsis (s. cholerasuis, typhisuis, Actinobacillus suis)
Listeria monocytogenes
Aflatoxin
What does the Vietnamese potbelly pig get?
Hepatocellular carcinoma
Cause of hepatosis dietetica
Concurrent deficiencies in sulfur-containing amino acids, tocopherols, and selenium
Gross lesions with hepatosis dietetica
Massive hepatic necrosis and fibrosis, skeletal and cardiac muscle degeneration, serous effusions, gastric ulcerations, arteriolar fibrinoid necrosis
Yellow stained adipose
Differentials for gall bladder edema
CSF
ASF
Common neurologic congenital defect in swine
Meningocele or meningoencephalocele
What causes hydranencephaly in piglets?
Paramyxovirus
Cause of cerebellar hypoplasia?
Porcine pestivirus (CSF)**
Cause of cerebellar hemorrhage?
Porcine circovirus 2
Causes of fibrinosuppurative meningitis (2)
Streptococcus suis type 2
Glasserella parasuis
Causes of congestion and meningitis without fibrin
Salmonella cholerasuis (sepsis)
Morph with salt deprivation
Multifocal laminar necrosis with eosinophilic infiltrate
Neuro lesions with selenium toxicity
Bilaterally symmetric poliomyelomalacia (necrosis of ventral horns**)
Cause of fibrin in testis
Polyserositis (big 3)
Cause of really bad testes with pyogranulomatous inflammation
Brucella suis
Primary cause of cystitis and pyelonephritis, including preputial diverticulitis
Actinobaculum suis
Causes of vulvovaginitis and mammary development in pre-pubertal animals (estrogen effects)
Fusarium spp. toxin (F2-zearalenone)
Alfalfa
Soybeans
Common finding in uterus of Vietnamese potbelly pigs
Cystic endometrial hyperplasia
Cause of abortion with proliferative and necrotizing dermatitis
Swine poxvirus
Classic cause of SMEDI; other causes
Porcine parvovirus; PCV-2, porcine arterivirus (PRRS), lepto, pseudorabies