| Aggressive and poorly responsive tumors are often characterized by multiple molecular cytogenetic aberrations. |
| It does help to distinguish mesotheliomas from reactive, proliferating mesothelium, which typically has no cytogenetic abnormalities. |
| Because of an insufficient number of mitoses, conventional cytogenetic analysis was unsuccessful. |
| In vivo cytogenetic studies suggested the induction of chromosome damage in Chinese hamster bone marrow cells. |
| An aliquot of fetal cells was obtained from fetal villous tissue in each case, and the samples were examined by cytogenetic techniques. |
| We also describe for the first time the ultrastructural and cytogenetic features of this tumor. |
