Fig. 3.

Coaxial biopsy technique using quick core biopsy set. Top row shows 16-gauge guiding needle with stylet inside and thinner 18-gauge biopsy needle in "ready" position. On bottom row, biopsy needle is placed inside guiding needle after removing stylet and specimen notch is advanced (inset specimen notch). By fully pressing plunger, cutting cannula is fired and tissue sample is captured within specimen notch. 1, guiding needle; 2, plunger; 3, specimen notch; 4, cutting cannula; 5, stylet of guiding needle.