A full core biopsy device (10) includes a needle assembly (14, 14', 314, 414) having stylet (20, 320, 420), spoon (18, 18', 318, 418), and at least one coring cannula (16, 316, 317, 416, 417). A window (62, 62', 362, 462) is located in at least one of the spoon (18, 18', 318, 418) and coring cannula (16, 316, 317, 416, 417). A excising finger (98, 398, 498) is configured to prolapse through the window (62, 62', 362, 462) into a lumen (46, 46'), of the inner spoon or cannula to sever a tissue sample upon translation or axial advancement of the excising finger.
