Tumours of Swine, in
particular pet pigs
Juvenile tumours |
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Nephroblastoma The large mass is the right kidney, which is grossly enlarged into a nephroblastoma. This tumor develops from the renal blastema. Generally the tumour is discovered at slaughter as an incidental finding |
Young adult |
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Lymphosarcoma Lymphosarcoma classically affects young adults – gilt or 1st
parity sows. The sow loses weight
rapidly and is unresponsive to treatment.
At post-mortem, lesions associated with swollen lymph nodes are found
scattered throughout the carcase. The
right photograph reveals the swollen chain of lymph nodes associated with the
rib cage. |
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Middle aged adult |
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Skin tumours |
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Melanoma – these are not infrequently found in pet pigs. They can be removed surgically or review the growth of the tumour over time. Many of these lumps remain very static over a long period of time without causing any problems or irritation to the pig. |
Elderly adult |
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Reproductive tumors |
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Large
leiomyoma pre-surgical and the tumour being removed- Pictures Dr K Mozzachio Tumours
of the female reproductive tract are being increasingly reported particularly
associated with the broad ligament and uterus. |
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This large ovarian tumour was removed from a pig |
Sertoli cell tumour – cut surface through testes shown |
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Tumours also occur elsewhere; this is a tumour of the thyroid. |
Scrotal haemangioma – these can be very common with little or no significance. |
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Elderly pig which suddenly went off her back legs |
X-ray revealed a tumour – lymphoma – under the spinal column - arrow |