A NEW SYRINGE FOR FINE-NEEDLE ASPIRATION BIOPSY

In order to improve the technique of fine needle aspiration biopsy (FN AB), we developed a disposable syringe that allows one to perform aspi ration with one hand while eliminating the need for a classic syringe holder. This study compared the cellularity and diagnostic adequacy of the material obtained with the new syringe and a syringe holder. More over, the acceptance of the new technique by physicians in training an d by patients was tested. FNAB was performed with a syringe holder and the new syringe on 120 lesions from different body sites. The total n umber of diagnostic cells and their relative percentage were estimated . The results of the study indicated that the adequacy of a conclusive cytologic diagnosis was similar for both techniques. Moreover, a comp arable cellular yield was demonstrated by a linear relationship betwee n the total number of diagnostic cells (r=.84, slope=.83). The new tec hnique was favorably accepted by physicians in training and patients. FNAB with the new syringe can be performed routinely.