STEEPLECHASE - PATHOLOGY II Flashcards























Intussusception



















Enteritis

































Normal glandular epithelium

Ductal epithelial hypertrophy

Mammary ductal hyperplasia

Squamous metaplasia in an ectatic mammary duct

Dysplasia (atypical ductal hyperplasia)

Mammary atrophy in a spayed dog











Healthy hoof





Sole ulcer





White line disease


Mixed lesions


Treponema species

Bovine digital dermatitis









Long toe





















Sub solar/white line abscess (‘Pus in the foot’)




Laminitis



Primary lamella

Secondary lamella

Laminitis - proteins (3)




Acute inflammatory laminitis


Acute inflammatory laminitis


Insulin dysregulation

Pituitary pars intermedia dysfunction

Canine liver


Porcine liver










Normal liver tissue

Hepatocellular atrophy - nuclei more prominent, less cytoplasm, smaller cells



Normal liver tissue

Hepatocellular hypertrophy - larger, pinkier = more cytoplasm

Glycogenosis - hepatocytes have ragged feathery-looking vacuoles in cytoplasm

Microvesicular steatosis/lipidosis of liver

Macrovesicular steatosis/lipidosis of liver

Hepatic lipidosis






Lipogranuloma - if fatty hepatocytes rupture as Kupffer cells clean up

Amyloidosis - liver


Apoptosis - liver


Coagulative necrosis - liver


Lytic necrosis - liver


Focal necrosis of liver, tan dots due to bacterial showering, animals probably dying of septicaemia/endotoxaemia rather than liver dysfunction

Focal hepatitis - inflammation - neutrophils and lymphocytes

Lobular necrosis

Liver


Liver


Liver


Liver


Massive necrosis of pig liver (connective tissue), whole lobule dead, haemorrhage, hypereosinophilia

Biliary hyperplasia

Liver


Liver




Cirrhosis of liver


Melanosis of liver

Bile plugs of liver

Lipofuscin of liver

Haemosiderin in Kupffer cells of liver

Haematin



Hepatic encephalopathy - big swollen nuclei (chromatin dispersed towards edges) of Alzheimer type II cells

Photosensitisation - hepatobiliary pathology


Hepatocutaneous syndrome

Extrahepatic portosystemic shunt


Intrahepatic portosystemic shunt


Hepatic fibrosis


Peritoneal, pericardial hernia of liver


Acquired diaphragmatic hernia


Liver lobe torsion


Liver rupture

Prehepatic portal hypertension




Passive congestion of liver


Caudal vena cava thrombosis


Peliosis hepatis/telangiectasis

Canine - chronic hepatitis

Lobular dissecting hepatitis - dissecting fibrosis between hepatocytes


Cholangitis in cats - liver

Cholangitis in cats - duodenum

Cholelithiasis - horse liver, don’t need gallbladder to get stones

Infectious canine hepatitis - canine adenovirus 1, large nuclear inclusions


Rift valley fever of liver


Equine serum hepatitis


Equine serum hepatitis


Hepatic abscess

Hepatic necrobacillosis (Fusobacterium necrophorum)

Hepatic necrobacillosis (Fusobacterium necrophorum) - central amorphous debris with a rim of lytic (dying) leucocytes followed by outer haemorrhage and often local thrombosis

Bacillary haemoglobinuria (Clostridium haemolyticum)


Bacillary haemoglobinuria (Clostridium haemolyticum) - bladder opening with port wine colour urine

Clostridium piliforme - Tyzzer’s disease


Clostridium piliforme - Tyzzer’s disease, long, gram-negative bacilli forming bundles in cytoplasm

Toxic diseases - copper toxicity in sheep


Nodular hyperplasia of liver


Nodular hyperplasia of liver


Gallbladder mucocele (dilation with mucoid secretion)

Gallbladder mucocele


Hepatocellular adenoma

Hepatocellular carcinoma

Hepatoblastoma


Cholangiocarcinoma - central depression in middle

Carcinoid

Leiomyoma or gallbladder

Lymphoma of liver (alpaca)