Diagnostic outcome and safety of CT-guided core needle biopsy for mediastinal masses: a systematic review and meta-analysis.

• The pooled estimates of diagnostic yield and accuracy of computed tomography (CT)-guided core needle biopsy (CNB) for mediastinal masses are 92% and 94%, respectively. • The pooled estimates of the total complication rate and major complication rate were 13% and 2%, respectively. • The use of a 20-gauge needle and ≥ 3 tissue samplings are recommended for CT-guided mediastinal CNB to achieve high diagnostic outcomes and lower complication rates.