In brief: Abnormal wrist bone. The lunate is one of eight bones in the wrist. It is shaped like a half-moon and therefore called the lunate. Breakdown of this bone is known as kienbock's disease. The exact cause of this condition is not known. It may be related to various anatomical features unique to you. It may be genetically related.
Quick Answer. Atypical cells, the presence of which is sometimes called dysplasia, have a number of causes that range from infection and/or inflammation to normal aging. Atypical cells usually revert back into normal cells once the cause is identified and treated.
Also referred to as reactive lymphocytes, atypical lymphocytes are larger in size with a diameter of more than 30 microns. The large size of the lymphocytes is attributed to antigen stimulation. There are several factors that are responsible for atypical lymphocytes. These atypical lymphocytes are either folded, round, indented or elliptic in shape. They have basophilic cytoplasm and contain several vacuoles.