Mesothelioma - An Introduction

What is Mesothelium?
To understand Mesothelioma let us first understand what mesothelium is. The mesothelium is a membrane that covers & protects most of the internal organs of the body, the mesothelium is composed of two layers of cells, one layer immediately surrounds the organ the other forms a sac like covering around it. The mesothelium membrane produces a lubricating fluid that is released between these layers, allowing moving organs such as the beating heart and lungs to slide easily against adjacent structures.

The mesothelium is called by different names, depending on where it is located in the body. For e.g. the peritoneum is the mesothelial tissue that covers most of the organs in the abdominal cavity. The pericardium covers and protects the heart. The pleura is the membrane that surrounds the lungs and lines the wall of the chest cavity. The mesothelial tissue surrounding the male internal reproductive organs is called the tunica vaginalis testis. The tunica serosa uteri covers the internal reproductive organs in women.