Figure 2From: Pulmonary artery injury during mediastinoscopy controlled without gauze packing Pathological findings of the biopsied specimen. (A) Lymph node tissue and pulmonary artery wall in biopsied specimen (H&E, ×40). (B) Smooth muscle layer and endothelial layer (H&E ×200). (C) Smooth muscle layer of the artery (E&M ×200).Back to article page