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===Clinical Signs===
===Clinical Signs===
Multicentric Lymphoma: Dogs:
Multicentric Lymphoma: Dogs:
The most common presenting sign in dogs is a lymphadenopathy, with only 10-20% of dogs presenting clinically unwell. Dogs that do present with clinical signs may be anorexic, lethargic and have lost weight.
For other types of lymphoma affecting dogs the clinical signs will demonstrate the anatomical site affected.
''Mediastinal'' forms will present with decreased heart sounds, dyspnoea and polyuria and polydypsia due to paraneoplastic hypercalcaemia.
Dogs with mediastinal lymphoma can also have pitting oedema of the head and neck due to compression of the cranial vena cava.
''Alimentary'' forms will present with vomiting, diarrhoea, anorexia and thickened loops on intestine on abdominal palpation.
''Cutaneous'' lymphoma can also occur with a varied presentation but often present as cutaneous nodules.
==Gastric==
==Gastric==