At the end of the post you can vote for the right diagnosis!

The following lesions were observed in a 10-month-old Friesian calf carcass:

  • Increased liver size with very pale coloration.
  • Generalized increase in size and redness of lymph nodes, some of them had white nodules.
  • Kidneys: multiple punctiform whitish lesions.
  • Enlarged spleen.

Pale kidneys with punctiform whitish lesions and generalised enlargement and reddening of lymph nodes (arroheads).

 

Pale enlarged liver (hepatomegaly).

 

What is your diagnosis? (47)

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Histopathology revealed lesions consistent with a multicentric lymphoma. Immunohistochemical characterisation showed it was a B cell type (CD20 positive, CD3 negative) typical of the sporadic juvenile lymphoma in cattle.  Spain is oficially free of bovine enzootic leucosis since 1999, but it still is a notifiable disease of the OIE list, present in some countries of the european continent.
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Question 1

What is your diagnosis? (47)

A
Bovine enzootic leucosis
B
Amyloidosis (secondary to an inflammatory process)
C
Septic nephritis and hepatitis (Trueperella pyogenes)
D
Sporadic juvenile lymphoma
E
Generalized anemia (secondary to haemorrhagic diathesis)
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