A 59-year-old male patient was referred to our hospital for further examinations and treatment due to an abnormal shadow detected in his left lower lung lobe on computed tomography. The patient was diagnosed with intralobar pulmonary sequestration and scheduled for an operation. During the surgery, after resection of the aberrant artery, indocyanine green was intravenously injected, and the border between normal lung and sequestrated lung was clearly identified by an infrared thoracoscope. Subsequently, wedge resection was performed, and the patient was discharged on postoperative day 5. Spirometry performed 6 months after the surgery indicated that the patient's lung function was well-preserved compared to the preoperative status.
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