Difference between revisions of "Lymphocytosis"

Revision as of 19:34, 18 August 2010

Lymphocytosis refers to an increase in the number of circulating lymphocytes in the blood. The major causes of lymphocytosis are:

Neoplasia
- Several types of tumour may result in increases in the number of blood lymphocytes, including:
  - Stage V lymphoma
  - Acute lymphoblastic and chronic lymphocytic leukaemia
  - Bovine Leukosis caused by bovine leukaemia virus
Stress
- Following adrenaline release in fear, excitement and so on.
Chronic infection
- In some cases of chronic infection.
  - However, reactive hyperplasia in associated lymph nodes may not correlate with the numbers of circulating lymphocytes.
Physiological
- Commonly in growing swine.
  - Possibly associated with aMycoplasma infection.
Equine neonates

@@ Line 1: / Line 1: @@
-* Lymphocytosis is an increase in numbers of lymphocytes in the blood.
+{{unfinished}}
-* Occurs:
+==Description==
-** In tumours in which there is a substantial increase in their number.
+Lymphocytosis refers to an increase in the number of circulating lymphocytes in the blood.  The major causes of lymphocytosis are:
-*** Some of the lymphocytes are immature - lymphoblasts.
+*Neoplasia
-*** For example, Bovine Leukosis.
+**Several types of tumour may result in increases in the number of blood lymphocytes, including:
+***Stage V [[Lymphoma|lymphoma]]
+***Acute lymphoblastic and chronic lymphocytic leukaemia
+***Bovine Leukosis caused by bovine leukaemia virus
+*Stress
 ** Following adrenaline release in fear, excitement and so on.
+*Chronic infection
 ** In some cases of chronic infection.
 *** However, reactive hyperplasia in associated lymph nodes may not correlate with the numbers of circulating lymphocytes.
+*Physiological
 ** Commonly in growing swine.
+*** Possibly associated with aMycoplasma infection.
+*Equine neonates
-*** Possibly associated with aMycoplasma infection.
 [[Category:Blood Cell Changes]][[Category:To Do - James]]