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

A 13 years old cow of Bruna dels Pirineus breed, presented with multiple nodules of variable size (0.2 to 4 cm), of whitish to yellow colouration, moderately hardened and located in the serosa of the abdominal viscera. The mesenteric lymph node also presented the same lesion.

Nodular lesions in the spleen serosa.

Nodular lesions in the spleen serosa.

The abdominal adipous tissue also had nodular lesions.

The abdominal adipous tissue also had nodular lesions.

The abdominal serosa of the diaphragm was also involved.

The abdominal serosa of the diaphragm was also involved.

What is your diagnosis? (15)

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Histopathology of the lesions revealed a neoplastic proliferation compatible with a mesothelioma with an intense fibrosis around each proliferation nuclei.

SESC-059-14 (HE)  

This case was submitted to SESC as a suspected TB case since the lesions were, indeed, macroscopically compatible with a pearly tuberculosis case: Tuberculous lesions: why do we need to confirm the diagnosis?.

 
Your answers are highlighted below.
Question 1
A
Granulosa cell neoplasm (Ovarian)
B
Pearly tuberculosis
C
Multifocal Lipoma
D
Mesothelioma
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