Huge cervico-thoracic thymic cyst

Cardiothoracic Surgery Department, Mansoura University Hospital, Mansoura Faculty of Medicine, 12, Mansoura 123, Egypt * Corresponding author. Tel.: +2-50-225-5471; fax: +2-50-226-5471 sameh001{at}yahoo.com We present a case of a 6 year-old boy who presented with a huge mass in the right side of the neck and changes its size with respiration and with straining. Computed tomography of the chest and neck showed a huge mass that was thought to be cystic hygroma. It was excised by both median sternotomy and a right cervical incision. Pathology revealed a thymic cyst. Key Words: Thymic cyst