Mesotheliomas are rare tumors derived from the cellular tissue that lines the cavities and interior structures of the body. These linings are called the epithelial linings. The mesothelial lining, specifically, is a membranous epithelial lining that is derived from the mesoderm cell layer, with its main functions being to line the body cavity, to cover and protect the internal organs, and to facilitate movement within the body cavity (coelom).
 
Mesotheliomas are the result of abnormal division and replication of mesothelial cells, and their migration to other sites in the body. ...read more