Spontaneous rupture of ductus arteriosus.

Fig. 2. (A) Multi-slice computed tomography images showed extravasation of the contrast media into themediastinumwith surrounding hematoma, not only in the mediastinum but also into the left lung tissue. (B) Three dimensional volume-rendering images from the computed tomography scan clearly demonstrated leakage of the contrast media at the bifurcation of the ductus arteriosus and lesser curvature of the aortic arch. At operation, rupture of ductus arteriosus at the bifurcated point from aorta without any ductal aneurysm was seen. Biopsy specimens did not show any evidence of inflammation and/or infection.