Fig. 4From: The uniportal VATS in the treatment of stage II pleural empyema: a safe and effective approach for adults and elderly patients—a single-center experience and literature reviewA, B Stage II of pleural empyema at uniportal video-assisted thoracoscopy (u-VATS) approach characterized by a exudative thickening and dense fibrin depositions in pleural spaceBack to article page