Dysplasia
This article is about the pre-cancerous change in cells and tissues. For the clinical condition affecting the hip joint, see Hip dysplasia. Normal squamous cells Dysplastic cells Dysplasia (from Ancient Greek δυσ- dys- , "bad" or "difficult" and πλάσις plasis , "formation") is a term used in pathology to refer to an abnormality of development or an epithelial anomaly of growth and differentiation (epithelial dysplasia). [1] The terms hip dysplasia, fibrous dysplasia, and 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. Contents 1 Epithelial dysplasia 1.1 Examples 1.2 Screening 1.3 Microscopic changes 1.4 Dysplasia vs. carcinoma in situ vs. invasive carcinoma 2 See also 3 References ...