Splenic Neoplasms

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  • these are important surgically since splenomegaly can be diagnoses clinically by palpation or X-ray and some tumours are surgically curable

Hyperplastic Nodules or Benign Lymphoma

  • very common incidental findings in older dogs
  • should not be mistakenly identified as pathognomic lesions
  • consist of nodules of hyperplastic white and red pulp
- usually 1-2 cms in size, but occasionally may be larger
- spherical
- protrude hemispherically from the surface as yellow and red mottled nodules
  • infrequently, may rupture and give rise to haemorrhage

Haemangioma

Haemangiosarcoma

Haematopoietic Neoplasms

Lymphosarcoma
myeloid (granulocytic) leukaemia
  • rare
  • all species
  • extreme form with spleen approaching liver size
systemic mastocytosis
  • cat
  • extreme form with spleen approaching liver size