The Wallgraft Endoprosthesis for the treatment of traumatic arterial injuries offers a promising alternative to conventional operative repair with comparable patency and less major morbidity and mortality.

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A case of bilateral traumatic pulmonary pseudocysts, an uncommon complication of blunt chest trauma, is presented. The radiologic changes were followed over 6 months until spontaneous resolution had occurred. The mechanism of formation of traumatic pseudocysts and the diagnostic implications are discussed.

The effects of lymphography on ventilatory function and gas transfer factor were studied in nine patients. Serial measurements made up to one month showed no change in the forced expiratory volume in one second or vital capacity. A small but reversible fall in transfer factor was found. The greatest reduction was at 24 or 48 hours. It was concluded that patients with normal lungs are unlikely to encounter difficulties but that patients with severe lung disease require careful assessment before lymphography.