[Cytological diagnosis of small cell lung cancer]

Morphometric studies using the Integral instrumentation complex and the ICP--II pulsed cytophotometer assays of DNA in lung tumor cells of various histological patterns were conducted to obviate difficulties involved in establishing differential cytologic diagnosis of small cell undifferentiated lung cancer. It was shown that morphometric and pulsed cytophotometric measurements may offer considerable advantage when used in conjunction with other procedures of differential diagnosis with a view to improving diagnosis of various forms of lung tumors and small cell undifferentiated lung cancer, in particular.