Liver 1 Pictures

• Name the abnormality shown below.

  Cirrhosis ( regeneration , fibrosis and hyperplasia of liver)

  
• Name the abnormality, which animal group its common in and what it is caused by

  Tension lipidosis

  Common in horses – caused by capsular tension

  
• Name the lesions on the liver

  fibrous tags caused by strongyle migration

  
• Name the lesions seen and which animal species is it common in

  Telangiectasis. In Cattle and cats

  
• Name the lesions on the liver seen below

  Congenital Biliary Cysts

  
• Describe what is seen below mentioning the common cause and what is predisposed.

  Trauma is the most common cause. Inflammation, fatty change and amyloidosis may predispose

  
• Name the abnormality , which animal is it common in and its pathological significance

  Calves, lambs, piglets – of no pathological significance

  
• Describe the lesion seen below and what is it DDX


  Cholestasis- bile flow blocked

  Greenish or orange bile oozes from cut surfaces Arboriform pattern

  DDX: fatty liver

  
• What caused the discoloration below and what is the animal predisposed to because of it?

  Iron-porphyrin

  CAUSE: Fasciola and Schistosoma spp. Larval migration – fluke pigment

  Predisposes to Clostridial proliferation

  
• Name the abnormality and what is it predisposed to?

  Amyloidosis

  • Secondary to chronic inflammation

  • Amyloid deposited in space of Disse • Hepatomegaly, pale tan, predisposed to rupture

  
• State the phenomenon here and its pathology

  Cell swelling – usually indicates acute activation of smooth ER in response to drug/toxin

  
• State the abnormality

  FATTY LIVER: A fatty liver will be tan to creamy-yellow, enlarged with rounded edges, friable in consistency and often greasy to touch.

  
• State the causes of fatty liver

  • Physiological

  – Fasting

  – Pregnancy (esp. ruminants)

  – Lactation (cows)

  Pathological

  – Genetic

  • Hyperlipaemia in horses and cats

  – Metabolic

  • Pregnancy toxaemia and ketosis

  • Diabetes mellitus

  • Hypothyroidism

  • Hyperadrenocorticism

  – Deficiencies

  • Anaemia, choline, Cobalt/Vit B12

  – Toxicities

  • Phosphorus, aflatoxin, Myoporum spp.
• Name the disease

  Ovine White Liver Disease

  
• Name the change below

  Hepatocyte Atrophy

  
• Name the lesion and possible causes

  SMALL FOCAL NECROSIS

  Causes include bacterial septicaemia (e.g. salmonellosis), viruses (e.g. EHV1), protozoa (e.g. Toxoplasma)

  
• Name the lesion and possible cause

  Necrobacillosis caused by Fusobacterium necrophorum

  
• Name the abnormality

  Hepatosis Dietetica

  
• Name the disease, which animal gets it and its pathogenesis

  Serum hepatitis/Theilers disease - horses

  Pathogenesis: Administration of hyperimmune serum to circulating antibody/ antigen complex deposition (type III hypersensitivity) to peracute massive hepatic necrosis

  
• Name the abnormality

  Chronic Passive Congestion. Nutmeg cut in half. The liver is swollen and darker than normal – the pattern on cut surface may resemble a nutmeg – hence ‘nutmeg liver’. Ascites is usually severe.

  
• Name the abnormality

  Portocaval Shunts

  
• What is seen below

  Cholelithiasis