[Cervicofascial subcutaneous emphysema and pneumomediastinum following routine restorative dentistry--two case reports].

Although a well-known complication of dental treatment, cervicofacial subcutaneous emphysema is uncommon, especially with co-existing pneumomediastinum. This complication is usually attributed to high-speed air-driven handpieces or air-water syringes. Pneumomediastinum is usually self-limiting but potentially life threatening.

A giant unruptured aneurysm of the sinus of Valsalva together with ectasia of the left coronary artery.

A sinus of Valsalva aneurysm is defined as a dilatation of the aortic sinuses, between the aortic valve annulus and the sinotubular junction. They are rare and most frequently involve the right coronary sinus. We report a case of an unruptured giant sinus of Valsalva aneurysm in a patient associated with ectasia of the left main stem and left anterior descending coronary artery.