Fig. 1From: Modified thoracoscopic pleural cryo-biopsy in diagnosis of exudative pleural effusion of undetermined etiologySteps of the modified thoracoscopic cryo-biopsy technique. a Insertion of the needle. b Injection of mixed saline and adrenaline subpleurally. c Insertion of the cryoprobe and attaching to the target area of the parietal pleura forming the ice-ball (note that the cryoprobe is attached to a rigid forceps). d Getting the biopsyBack to article page