• Myelofibrosis: Proliferation of mesenchymal elements (connective tissues) bone marrow fibrosis, spleen, liver, lymph nodes & extramedullary haemopoieses.

  • Seen in over 50 age group.

  • Huge splenomegaly & infarct causes discomfort.

  • Splenectomy relieves symptoms.

  • Tumours: Large haemangioma, Non-Hodgkin’s lymphoma confined to spleen-splenectomy