Fig. 2From: Cellular and acellular ex vivo lung perfusion preserve functional lung ultrastructure in a large animal model: a stereological studyLight micrographs of lung parenchyma. Lung parenchyma was unaltered in all groups in most sections. Toluidine blue stained sections. (a) control group; (b) ischaemia group; (c) aEVLP group; (d) cEVLP group. AL air filled alveolar lumen, AS interalveolar septumBack to article page