Monocytosis

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

Differential Diagnosis of Causes of
(By organ system)

(In alphabetical order)
 * Acute lymphocytic leukemia
 * Bacterial Endocarditis
 * Benign familial neutropenia
 * Brucellosis
 * Carcinoma
 * Chronic myeloid leukaemia
 * Chronic neutropenia
 * Cirrhosis
 * Crohn's disease
 * Cyclical neutropenia
 * Cytomegalovirus
 * Drugs
 * Gaucher's Disease
 * Granulocyte-macrophage colony stimulating factor
 * Herpes Zoster Virus
 * Hodgkin lymphoma
 * Infectious Endocarditis
 * Infectious hepatitis
 * Inflammatory bowel disease
 * Irritable Bowel Syndrome
 * Kala-azar
 * Kostmann syndrome
 * Lipid storage disease
 * listeriosis
 * Lymphoproliferative disease
 * Malaria
 * Mononeucleosis
 * Mycobacterium tuberculosis
 * Myelodysplastic syndrome
 * Myeloma
 * Myeloproliferative disease
 * Non-Hodgkin lymphoma
 * Other malignant lymphomas
 * Polyarteritis nodosa
 * Recovery from neutropenia
 * Relapsing fever
 * Rheumatoid arthritis
 * Rocky Mountain spotted fever
 * Sarcoidosis
 * Syphillis
 * Systemic lupus erythematosus
 * Trypanosomiasis
 * Tuberculosis
 * Ulcerative colitis
 * Visceral leishmaniasis
 * Whooping cough