[Thin-needle puncture aspiration cytology in the diagnosis of lymph node tumors].

356 patients were studied suffering from lymph node swelling of the neck, supraclavicular region, axilla and groin. A primary or secondary malignant process was confirmed in 196 cases, reactive or granulomatous changes were found in 151 cases, in 64 smears there were only a few lymphocytes and connective tissue. The last group was the source of 11 false negative results. Not a single false positive diagnosis was established. Histological correlation was made in 85 cases.