Abstract
Superior vena cava (SVC) syndrome is obstruction of blood flow through the SVC and is characterized by facial and neck swelling and distended veins over the chest. It is a medical emergency and most often manifests in patients with a malignant disease process within the thorax. Lung cancer and lymphoma account for more than 90% of cases of SVC syndrome [1]. The most common underlying malignancy is carcinoma of the lung, in part because of the proximity to the heart and its common prevalence [2]. Lung cancer is the most common primary tumor, and adenocarcinoma the most frequent cell type of cardiac metastases [3]. Breast cancers, melanoma, and lymphoma are also likely noncardiac tumors that involve the pericardium [4].
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