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  • spleen
  • Peripheral blood, bone marrow, spleen, and liver are most common, but any organ or tissue can be infiltrated by neutrophils. (wikipedia.org)
  • The primary sign of myelofibrosis is reactive bone marrow fibrosis, but it is often accompanied by: Abdominal fullness related to an enlarged spleen (splenomegaly). (wikipedia.org)
  • Bone pain Bruising and easy bleeding due to inadequate numbers of platelets Cachexia (loss of appetite, weight loss, and fatigue) Enlargement of both the liver and spleen Fatigue Gout and high uric acid levels Increased susceptibility to infection, such as pneumonia Pallor and shortness of breath due to anemia In rarer cases, a raised red blood cell volume Cutaneous myelofibrosis is a rare skin condition characterized by dermal and subcutaneous nodules. (wikipedia.org)
  • The result is extramedullary hematopoiesis, i.e. blood cell formation occurring in sites other than the bone marrow, as the haemopoetic cells are forced to migrate to other areas, particularly the liver and spleen. (wikipedia.org)
  • Hepatosplenic T-cell lymphoma is a systemic neoplasm comprising medium-sized cytotoxic T-cells that show a significant sinusoidal infiltration in the liver, spleen, and bone marrow. (wikipedia.org)
  • The spleen and liver are always involved, with bone marrow involvement frequently present. (wikipedia.org)
  • biopsy
  • There is a reported association between CNL and multiple myeloma, so the bone marrow biopsy may show evidence of a plasma cell dyscrasia with increased numbers of atypical plasma cells. (wikipedia.org)
  • abnormal
  • There may be signs of specific causes of anemia, e.g., koilonychia (in iron deficiency), jaundice (when anemia results from abnormal break down of red blood cells - in hemolytic anemia), bone deformities (found in thalassemia major) or leg ulcers (seen in sickle-cell disease). (wikipedia.org)
  • The abnormal megakaryocytes stimulate other cells, the fibroblasts, to produce collagen in the bone marrow. (wikipedia.org)
  • classification
  • Absent these causes, patients were diagnosed in the World Health Organization's classification as having either 1) Chronic eosinophilic leukemia, not otherwise specified, (CEL-NOS) if blood or bone marrow blast cells exceeded 2% or 5% of total nucleated cells, respectively, and other criteria were met or 2) idiopathic hypereosinophilic syndrome (HES) if there was evidence of eosinophil-induced tissue damage but no criteria indicating chronic eosinophilic leukemia. (wikipedia.org)
  • precursors
  • There are four main myeloproliferative diseases, which can be further categorized by the presence of the Philadelphia chromosome:[citation needed] In 2008, the World Health Organization listed these diagnoses as types of MPD: Chronic myelogenous leukemia (BCR-ABL1-positive) Chronic neutrophilic leukemia Polycythemia vera Primary myelofibrosis Essential thrombocythemia Chronic eosinophilic leukemia (not otherwise specified) Mastocytosis All MPNs arise from precursors of the myeloid lineages in the bone marrow. (wikipedia.org)
  • remission
  • RESULTS: Among 19 patients treated for NB resistant to induction therapy, 12 of 15 had complete remission (CR) of bone marrow (BM) disease, and three others who had less than partial responses achieved prolonged progression-free survival (one remains on study at 21+ months, two had PD at 12 and 17 months). (mendeley.com)
  • causes
  • Causes of decreased production include iron deficiency, a lack of vitamin B12, thalassemia, and a number of neoplasms of the bone marrow. (wikipedia.org)
  • There may be signs of specific causes of anemia, e.g., koilonychia (in iron deficiency), jaundice (when anemia results from abnormal break down of red blood cells - in hemolytic anemia), bone deformities (found in thalassemia major) or leg ulcers (seen in sickle-cell disease). (wikipedia.org)
  • Absent these causes, patients were diagnosed in the World Health Organization's classification as having either 1) Chronic eosinophilic leukemia, not otherwise specified, (CEL-NOS) if blood or bone marrow blast cells exceeded 2% or 5% of total nucleated cells, respectively, and other criteria were met or 2) idiopathic hypereosinophilic syndrome (HES) if there was evidence of eosinophil-induced tissue damage but no criteria indicating chronic eosinophilic leukemia. (wikipedia.org)
  • leukemia
  • Given that leukemia does not propagate just anywhere in the body and is difficult to grow ex vivo , it was thought that leukemia cells depend on the bone marrow microenvironment (BMM). (haematologica.org)