Fig. 6From: A case of a thoracic duct cyst extending from the mediastinum to the cisterna chyli resected using bilateral thoracoscopic surgery in the prone positiona Loupe image of hematoxylin and eosin staining. Cystic structures with fibrous walls are present. b Loupe image of α-smooth muscle actin (α-SMA) staining. Smooth muscle stained with α-SMA around the cystic structuresBack to article page