Mediastinal thymic cysts are usually asymptomatic and found incidentally on a routine chest roentgenogram. Rarely, they may cause symptoms of vascular obstruction. A 55-year-old woman presented with intermittent swelling in her left neck. The swelling was positional and was worse while supine and disappeared while upright. Evaluation revealed a thymic cyst causing extrinsic compression of the left brachiocephalic vein. The cyst was resected with complete resolution of the left neck swelling. (C) 2000 by The Society of Thoracic Surgeons.
ASJC Scopus subject areas
- Pulmonary and Respiratory Medicine
- Cardiology and Cardiovascular Medicine