CNRI / SCIENCE PHOTO LIBRARY CNRI / SCIENCE PHOTO LIBRARY
Reticulosarcoma. Light micrograph of reticulocyte blood cells (red, one at upper left) from a lymphatic ganglion in a case of reticulosarcoma. Sarcomas are a form of cancer that arise from various tissues including blood-producing tissues such as bone marrow. Reticulocytes are immature red blood cells.
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