Adequate, positive Choi et al, (46) 2016 Overview Procedure-related parameters and microscopic findings, number of punctures (>3 per node), length of core tissue (>2 cm), the gross appearance of aspirates (
puslike or anthracotic), and microscopic findings Criteria Tissue core in EBUS needle [greater than or equal to]2 cm Or malignant cells Or microscopic anthracotic pigment Or lymphocyte density >40 per 10 high-power fields, at X40 magnification Assigned Objective algorithm categories proposed for clinicians Abbreviation: HPF, high-power field.