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Lymphoma (view source)

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→‎Prevalence

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~~=====Prevalence=====~~

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* Order of prevalence in UK: cats, dogs, cattle, pigs and sheep.

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** In the cat and ox, viral agents have been identified as the causal agents.

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* Lymphoma is one of the prevalent neoplasms in the dog.

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** 80% of cases affect the 5 to 11 year old age group.

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** The incidence is about 28 per 100,000 dogs.

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** Blood of affected dogs shows neither a relative nor absolute increase in the number of lymphocytes until the late stages of the disease.

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*** When this stage is reached, poorly differentiated cells may appear in the blood.

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* FeLV is an important cause of lymphoma in the cat.

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** 70% of cats with lymphoma will test positive for FeLV.

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** FeLV also causes a number of non-neoplastic diseases.

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*** Anaemia.

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*** Leukopaenia.

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*** Thymic atrophy.

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* Cattle suffer both lymphosarcoma and leukosis in a variety of cytological forms.

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** Bovine lymphoma is caused by [[Bovine Leukaemia Virus]] (BLV).

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*** A retrovirus.

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*** There is a juvenile form of bovine lymphoma seen in young cattle which is not associated with BLV.

=====Species Differences=====

Bara

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Lymphoma (view source)

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