Monocytosis

Monocytosis is an increase in the number of circulating monocytes. 950/mcL is regarded as at the upper limit of normal; monocyte counts above this level are regarded as monocytosis.

Monocytosis often occurs during chronic inflammation. Diseases that produce this state:

• Infections: tuberculosis, brucellosis, subacute bacterial endocarditis, syphilis, infectious mononucleosisand other viral infections and many protozoaland rickettsialinfections (e.g. kala azar, malaria, Rocky Mountain spotted fever).
• Blood and immune causes: chronic neutropeniaand myeloproliferative disorders.
• Autoimmune diseasesand vasculitis: systemic lupus erythematosus, rheumatoid arthritisand inflammatory bowel disease.
• Malignancies: Hodgkin's diseaseand certain leukaemias, such as chronic myelomonocytic leukaemia(CMML) and monocytic leukemia.
• Recovery phase of neutropenia or an acute infection.
• Miscellaneous causes: sarcoidosisand lipid storage disease.de:Monozytose

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It uses material from the http://en.wikipedia.org/wiki/Monocytosis Wikipedia article Monocytosis.