Category:Splenic Neoplasia

• 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