Distinction between reactive mesothelial and metastatic adenocarcinoma cells in serous fluids is very important and sometimes very difficult. CEA, which is a tumor marker, is positive in 50 to 80% of metastatic adenocarcinoma and negative in reactive mesothelial cells. In the present study, 85 samples of body serous fluid were selected and then referred to laboratory of Alzahra Hosp...
