RT Journal Article SR Electronic T1 Diagnosis and management of superior vena cava syndrome JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 59 OP 61 VO 66 IS 1 A2 Markman, Maurie YR 1999 UL http://www.ccjm.org/content/66/1/59.abstract AB Superior vena cava (SVC) syndrome is a relatively common complication of lung cancer or lymphoma, and in fact is often the initial manifestation of these diseases. However, benign causes also exist, and physicians should not automatically assume that SVC syndrome is due to cancer. A definitive histologic diagnosis of cancer should be obtained before starting radiotherapy or chemotherapy to treat SVC syndrome.