Of the many parasitic infestations involving worms, pinworms are the most prevalent form of worm infestation. They affect approximately 200 million people all over the world, one-third of which can be found in the United States. Genus Enterobius or pinworm, is a parasitic roundworm belonging to the phylum Nematoda.
The liver and spleen share common blood circulation pathways. Due to the circulatory link between the liver and spleen, many disease processes affect both organs. Infections, blood cell diseases, liver diseases, cancer and inherited disorders can adversely affect the liver and spleen, causing enlargement of both organs. Any disease process that causes ongoing liver inflammation -- or chronic hepatitis -- and subsequent liver scarring can lead to cirrhosis.
An enlarged spleen can be caused by infections, cirrhosis and other liver diseases, blood diseases characterized by abnormal blood cells, problems with the lymph system, or other conditions. Here are some common causes of an enlarged spleen: Infections. 1  Viral infections, such as mononucleosis.