Within a 2-year period 677 diagnostic fine needle (DFP) and coarse needle punctures (DGP) were performed in 536 patients. In 34 patients (14 women; 20 men; 54 +/- 17.6 years) the abdominal tumour mass was punctured with the fine needle (22 g) as well as with the coarse (18 g) needle. Sensitivity of DGP accounted for 72%, sensitivity of DFP was 82.6%. Specificity was 100%, respectively. Complications could not be observed, neither with the coarse needle nor with the fine needle. Due to the high sensitivity of DFP this method should be employed first in the diagnostic work up of abdominal tumours.
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