1. Intercellular pores were observed on the mesenteric mesothelium.

2. Methods The morphosis of the mesothelium of the parietal pleura in rat were investigated by intrapleura injection with tracers and observed by scanning electron microscope.

3. The permeability of the mesothelium of the diaphragmatic peritoneum in rat was studied by intraperitoneal injection of Indian ink and rabbit blood and observed by electron microscopy.

4. Results There was significant changes in diaphragmatic peritoneal mesothelium and lymphatic capillaries.

5. A layer of mesothelium and dispersed milk spots compose the surface layer of the omentum.

6. Malignant pleural mesothelioma(MPM), originated from pleural mesothelium cell, is an fatal tumor with natual history of only about several months,[] has showed an increased morbidity recently.

7. Results There were significant changes in diaphragmatic peritoneal mesothelium and lymphatic capillaries.

8. The results showed that the diaphragm mesothelium was only covered with the flattened mesothelial cells (FMC) on embryonic day (ED)13.

9. Mesothelioma is a from of lung cancer that is almost always caused by asbestos exposure and is most commonly found in the outer lining of the lungs called the mesothelium .

10. The mucinous signet-ring cancer cells in high differentiation small cell adenocarcinoma should be differential diagnosis from mesothelium signet-ringoid change.