what is an enlarged spleen a symptom of
1 An enlarged spleen is not normal and occurs as a consequence of another underlying disease. 2  An enlarged spleen is caused by. 3  infections (mononucleosis, toxoplasmosis, endocarditis);  liver diseases (cirrhosis);
An enlarged liver and spleen, medically known as hepatosplenomegaly, occur when the liver and spleen swell beyond their normal size.