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A complex anterior‐lateral basal segmentectomy. (a) The computed tomography (CT) showed a small nodule located between S8 and S9 segment, and was suspected to be an early‐stage lung cancer. (b) The ultra–high‐definition 4K systems were applied in the surgery. (c) The intersegmental plane between S9 and S10 was clearly detected in the Mindray 4K device. (d) The final surgical field after the S8–S9 pulmonary tissues were removed
