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Thymic cyst causing superior venacava syndrome relieved by mediastinoscopy--a rare presentation
Anand P Iyer1, Dinesh Sadasivan, Sumit Yadav
1Department of Cardiothoracic Surgery, Fremantle Hospital, Alma Street, Fremantle, WA, Australia. anandcvts@hotmail.com
Abstract:
Superior venacava obstruction is most often caused by intrathoracic malignant masses. The commonest cause of benign superior venacava obstruction is fibrosing mediastinitis. A thymic cyst causing marked superior venacava obstruction is very rare and has not been reported. We hereby present a case of a 40-year-old man with such a finding who presented with chest pain and facial congestion. Evaluation revealed a mediastinal mass causing marked superior venacaval obstruction. He underwent a mediastinoscopy, which showed a cyst. It was drained following which there was complete resolution of symptoms post-operatively. Histopathology of the lesion confirmed a thymic cyst.
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