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

Samples and images were submitted to SESC of a 3 months old fattening chicken. Only one animal in the batch was invovled.

Whitish perifolicular nodules.

Whitish perifolicular nodules.

A different view of the cutaneous lesion.

A different view of the cutaneous lesion.

Whitish nodules were also seen in the myocardium.

Whitish nodules were also seen in the myocardium.

Multifocal whitish nodules were seen in the liver (top) as well as splenomeglay (bottom).

Multifocal whitish nodules were seen in the liver (top) as well as splenomeglay (bottom).

View of the sciatic nerves.

View of the sciatic nerves.

What is your Diagnosis?

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Histopathology showed a lymphoid neoplastic proliferation in the spleen, the skin ans also in the liver and myocardium.No significant lesions were observed in the sciatic nerves.

 

These lesions are suggestive of Marek's Disease.

 

In the following link Marek's most common lesions are reviewed:Let's take a look!


Your answers are highlighted below.
Question 1
A
Squamous cell carcinoma.
B
Avian leukosis
C
Marek's Disease
D
Newcastle's Disease
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