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| ==Primary Liver Tumours== | | ==Primary Liver Tumours== |
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| *ductal and acinar proliferation in abundant fibrous tissue | | *ductal and acinar proliferation in abundant fibrous tissue |
| *sometimes papillary formations | | *sometimes papillary formations |
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| ==Secondary Liver Tumours== | | ==Secondary Liver Tumours== |
| *from a variety of origins | | *from a variety of origins |
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| + | ==Pancreatic== |
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| + | [[Image:Pancreatic carcinoma.jpg|right|thumb|100px|<small><center>Pancreatic carcinoma (Image sourced from Bristol Biomed Image Archive with permission)</center></small>]] |
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| + | [http://w3.vet.cornell.edu/nst/nst.asp?Fun=Image&imgID=11616 Image of haemorrhage and pancreatic carcinoma in a cat from Cornell Veterinary Medicine] |
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| + | *In older dogs, more common in Airedale terriers, rare in cats, other species too |
| + | *Tend to arise centrally in the gland |
| + | *Highly invasive and infiltrative |
| + | *Metastases to the [[Liver - Anatomy & Physiology|liver]], visceral serosa, abdominal [[Lymph Nodes - Anatomy & Physiology|lymph nodes]], [[Spleen - Anatomy & Physiology|spleen]], [[Adrenal Glands - Anatomy & Physiology|adrenals]] etc. |
| + | *Similar to malignant ovarian tumours - implant on the [[Peritoneal cavity - Anatomy & Physiology|peritoneum]] |
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| + | ===Gross appearance=== |
| + | [[Image:Pancreatic carcinoma histo.jpg|right|thumb|100px|<small><center>Pancreatic carcinoma (Image sourced from Bristol Biomed Image Archive with permission)</center></small>]] |
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| + | *Usually spherical nodules with adhesions to nearby structures |
| + | *Single or multiple, variable size |
| + | *Greyish or yellow fibrous tissue - firm on cutting |
| + | *May show internal necrosis and haemorrhage |
| + | *Some tumours may contain cysts wih mucinous content |
| + | *Adhesions may occur |
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| + | ===Microscopic appearance=== |
| + | *May be well differentiated with normal acini and ducts |
| + | *Or diffuse sheet of undifferentiated cells |
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| [[Category:Liver,_Primary_Tumours]] | | [[Category:Liver,_Primary_Tumours]] |
| [[Category:Liver,_Secondary_Tumours]] | | [[Category:Liver,_Secondary_Tumours]] |
| + | [[Category:Pancreas_-_Hyperplastic_and_Neoplastic_Pathology]] |