A tumor derived from mesothelial tissue (peritoneum, pleura, pericardium). It appears as broad sheets of cells, with some regions containing spindle-shaped, sarcoma-like cells and other regions showing adenomatous patterns. Pleural mesotheliomas have been linked to exposure to asbestos. (Dorland, 27th ed)
Mesotheliomas
D008875
Middle Aged
An adult aged 45 - 64 years.
Middle Age
D009852
Omentum
A double-layered fold of peritoneum that attaches the STOMACH to other organs in the ABDOMINAL CAVITY.