Entamoeba histolytica is a single-celled organism, spread predominantly by ingestion of material contaminated with human feces tainted by this creature. Infection may lead to the formation of liver abscess(es) which contain a soft yellow-brown substance resembling anchovy paste.
Pritt BS, Clark CG: Amebiasis. Mayo Clin Proc, 2008 83(10):1154-9. Go to reference
Entamoeba histolytica life cycle