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The terms hip dysplasia, fibrous dysplasia, renal dysplasia refer to an abnormal development, at macroscopic or microscopical level. Myelodysplastic syndromes, or dysplasia of blood-forming cells, show increased numbers of immature cells in the bone marrow, and a decrease in mature, functional cells in the blood.yelodysplastic syndromes, or dysplasia of blood-forming cells, show increased numbers of immature cells in the bone marrow, and a decrease in mature, functional cells in the blood.
A number of diseases or conditions can affect the structure and function of bone marrow. This in turn can affect the production and/or function of any of the mature blood cells or their immature precursors.Disorders that affect the bone marrow and the blood cells it produces may be very subtle, causing mild or non-specific symptoms over a long period of time, or may be severe and life-threatening.his in turn can affect the production and/or function of any of the mature blood cells or their immature precursors. Disorders that affect the bone marrow and the blood cells it produces may be very subtle, causing mild or non-specific symptoms over a long period of time, or may be severe and life-threatening.