The benign mediastinal tumor with SVC syndrome is very rare.The kind of tumor grows slowly and the symptoms are usually due to compression of the adjacent structures.

• 摘要良性纵膈肿瘤并上腔静脉症候群是相当罕见病例，这类肿瘤生长速度缓慢而症状通常是肿瘤压迫到邻近器官所造成的。