@article{oai:niigata-u.repo.nii.ac.jp:00006496, author = {Motoyama, Teiichi and Ohta, Tamaki and Fujiwara, Takato and Watanabe, Hidenobu and Watanabe, Tohru and Emura, Iwao and Tanaka, Nobuko and Karibe, Yutaka and Seino, Toshihide and Okazaki, Etsuo}, issue = {3}, journal = {Acta medica et biologica, Acta medica et biologica}, month = {Sep}, note = {To obtain some useful descriminants for distinguishing mesothelioma cells from adenocarcinoma cells or reactive mesothelial cells in ascitic fluids, we studied the ultrastructural features of malignant mesothelioma cells in ascitic fluids. In a total of seven cases of malignant epithelial mesothelioma, there was a characteristic form with a concentric arrangement of intracytoplasmic organelles that appeared most frequently in the fluids. Determining the ratio of length to diameter (LDR) in the microvilli was helpful in distinguishing malignant mesothelioma cells from adenocarcinoma cells or reactive mesothelial cells in ascitic fluids as well as in tumor tissues. However, the number of intermediate filaments was not considered a useful discriminant in ascitic fluids, because some gastric adenocarcinoma cells also had abundant intermediate filaments.}, pages = {115--121}, title = {Ultrastructural Studies of Malignant Peritoneal Mesothelioma Cells in Ascitic Fluids and Tumor Tissues}, volume = {42}, year = {1994} }