Methylene Blue Staining: A New Technique for Identifying Intersegmental Planes in Anatomic Segmentectomy

To our knowledge, this study is the first to report a safe and feasible methylene blue staining method for identifying the lung segment borders that does not require any special equipment. More importantly, this method can clearly detect the intersegmental planes on the pleural surface and within the lung parenchyma, enabling thoracic surgeons to accurately perform anatomic segmentectomy.