Category: R
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Reticulosarcoma
A neoplasm composed of large monocytic cells that originated in the mononuclear phagocyte of the lymph and other glands. A highly aggressive type of cancer originating from lymph gland cells.
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Reticuloma
A neoplasm composed of cells of the mononuclear phagocytic system.
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Reticulohistiocytoma
A malignant connective tissue tumor composed of multinucleated giant cells in the skin, mucous membranes, or synovium.
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Reticuloendothelium
The tissue of the reticuloendothelial system, which is the old name for the mononuclear phagocytic system.
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Reticuloendothelioma
A neoplasm composed of cells of the mononuclear phagocytic system.
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Reticulocytopenia
A decreased number of the reticulocytes of the blood.
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Reticulocyte hemoglobin content
The amount of hemoglobin in newly circulating red blood cells. It is an early indicator of functional iron deficiency.
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Rete ridge
One of the down growths of epithelium surrounding the connective tissue papillae in the irregular internal surface of the epidermis. Microscopic sections often appear as single down growths when in fact the epithelium is in a series of interconnecting ridges at the dermis-epidermis interface.
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Reteplase
A thrombolytic drug used to treat acute myocardial infarction.
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Retention with overflow
A spasm of the urinary sphincter, causing failure to empty the bladder at one voiding, with only overflow dribbling away. It results from the same causes as urinary retention.