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

In a cross-breed, 2-3 years old pig a solid mass of fibrous consistency was observed in the abdominal cavity, cranial to the kidney, surrounded by numerous cysts of serous to sero-sanguinolent content. Cysts were also observed on the peritoneal serous membranes, particularly on the the mesentery.

Mass in the abdominal cavity, localized cranially to the kidney.

Mass in the abdominal cavity, localized cranially to the kidney.

Details of the mass, surrounded by cystic formations.

Details of the mass, surrounded by cystic formations.

The cysts can also be seen in the peritoneal serous membranes, especially in the mesentery.

The cysts can also be seen in the peritoneal serous membranes, especially in the mesentery.

Details of the mass, once extracted from the abdominal cavity.

Details of the mass, once extracted from the abdominal cavity.

What is your diagnosis? (25)

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  The lesions observed in the histopathological study were compatible with a papillary cistadenocarcinoma, most probably origined form the ovarian epithelium. It is a malignant ovarian neoplasia that metastatized by seeding on the serous membranes of the abdominal cavity.     A similar metastatic pattern was previously described in an ovarian neoplasia of a cow: Nodular cystic lesions in the abdominal cavity..
Your answers are highlighted below.
Question 1
What is your diagnosis?
A
Benign congenital epithelial cysts
B
Cysticercus tenuicollis
C
Polycystic kidney
D
Malignant ovarian neoplasia
E
Echinococcus multilocularis
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