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  2. Hemophagocytic lymphohistiocytosis - Wikipedia

    en.wikipedia.org/wiki/Hemophagocytic_lymphohist...

    The bone marrow may show hemophagocytosis. The liver function tests are usually elevated. A low level of the protein albumin in the blood is common. [citation needed] The serum C reactive protein, erythrocyte sedimentation rate, and ferritin level are markedly elevated.

  3. Bone marrow - Wikipedia

    en.wikipedia.org/wiki/Bone_marrow

    Bone marrow is a semi-solid tissue found within the spongy (also known as cancellous) portions of bones. [2] In birds and mammals, bone marrow is the primary site of new blood cell production (or haematopoiesis). [3] It is composed of hematopoietic cells, marrow adipose tissue, and supportive stromal cells.

  4. Bone marrow examination - Wikipedia

    en.wikipedia.org/wiki/Bone_marrow_examination

    Bone marrow samples can be obtained by aspiration and trephine biopsy. Sometimes, a bone marrow examination will include both an aspirate and a biopsy. The aspirate yields semi-liquid bone marrow, which can be examined by a pathologist under a light microscope and analyzed by flow cytometry, chromosome analysis, or polymerase chain reaction (PCR

  5. Hemosiderin - Wikipedia

    en.wikipedia.org/wiki/Hemosiderin

    Excessive systemic accumulations of hemosiderin may occur in macrophages in the liver, lungs, spleen, kidneys, lymph nodes, and bone marrow. These accumulations may be caused by excessive red blood cell destruction (haemolysis), excessive iron uptake/hyperferraemia, or decreased iron utilization (e.g., anaemia of copper toxicity) uptake ...

  6. Porphyria - Wikipedia

    en.wikipedia.org/wiki/Porphyria

    The underlying mechanism results in a decrease in the amount of heme produced and a build-up of substances involved in making heme. [1] Porphyrias may also be classified by whether the liver or bone marrow is affected. [1] Diagnosis is typically made by blood, urine, and stool tests. [2] Genetic testing may be done to determine the specific ...

  7. Erythropoiesis - Wikipedia

    en.wikipedia.org/wiki/Erythropoiesis

    After 20 years of age, the shaft of the long bones becomes yellow bone marrow because of fat deposition and loses the erythropoietic function. [5] Comparison of erythrocyte production by marrow stem cell lines from old and young adult donors shows no significant differences. [6]

  8. Haematopoietic system - Wikipedia

    en.wikipedia.org/wiki/Haematopoietic_system

    Haematopoietic stem cell transplantation (HSCT) is the transplantation of multipotent haematopoietic stem cells, usually derived from bone marrow, peripheral blood, or umbilical cord blood. [10] [11] [12] It may be autologous (the patient's own stem cells are used), allogeneic (the stem cells come from a donor) or syngeneic (from an identical ...

  9. Giemsa stain - Wikipedia

    en.wikipedia.org/wiki/Giemsa_stain

    Giemsa stain is a classic blood film stain for peripheral blood smears and bone marrow specimens. Erythrocytes stain pink, platelets show a light pale pink, lymphocyte cytoplasm stains sky blue, monocyte cytoplasm stains pale blue, and leukocyte nuclear chromatin stains magenta. It is also used to visualize the classic "safety pin" shape in ...