I don't remember what size my spleen is since too much time has lapsed. I was going to put a link where Hector gave a pretty decent answer without realizing who the OP is
http://www.medhelp.org/posts/Hepatitis-C/Is-the-spleen-getting-enlarged-in-HCV/show/1821478
Sorry about that. OH says it in a way that makes sense to me, "spleen gets enlarged from cirrhosis which can be caused by hep C."
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The thing is this link says, "An enlarged spleen measures about 12 to 20 cm (4.5 to 8 inches) in any dimension while a spleen greater than 20 cm (8 inches) is considered severe enlargement."
What are the causes of an enlarged spleen?
The spleen enlarges if it is asked to do excessive work in filtering or manufacturing blood cells, if there is abnormal blood flow to it, or if it is invaded with abnormal cells or deposits.
Abnormal red blood cells - Sickle cell disease, thalassemia, and spherocytosis are examples of diseases . . .
Viral and bacterial infection - infectious mononucleosis (caused by the Epstein Barr virus), AIDS and viral hepatitis. Examples of bacterial infections associated with splenomegaly include tuberculosis, malaria, and anaplasmosis (formerly known as ehrlichiosis).
Splenic vein pressure/blockage - cirrhosis and portal vein obstruction can cause complications with venous blood flow from the spleen. Congestive heart failure
Cancers: Leukemias and both Hodgkins and non-Hodgkins lymphoma can cause the spleen to enlarge, as can a variety of other tumors including melanomas.
Metabolic disease - Niemann-Pick disease, Gaucher's disease, and Hurler syndrome.
http://www.medicinenet.com/enlarged_spleen_splenomegaly/page3.htm