Fig. 2From: Combination of electromagnetic navigation bronchoscopy-guided biopsy with a novel staining for peripheral pulmonary lesionsSurgical procedure for ENB-guided biopsy combined with massage staining. a The locatable guide wire and the extended working channel reached the lesion. b The locatable guide wire and the extended working channel reached the visceral pleura. c The methylene blue was injected through cannula with the dose of 0.8 ml/cm of the lesion diameter. d The catheter with methylene blue was placed into the extended working channel, and the direction of catheter rubbing during the staining was shown by the red arrowBack to article page