Lai R S, Lu J Y, Chang J M, Hsu W H, Tseng H H
Department of Medicine, Veterans General Hospital-Kaohsiung, Taiwan, R.O.C.
Zhonghua Yi Xue Za Zhi (Taipei). 1992 Nov;50(5):424-8.
Intrathoracic neurogenic tumors are relatively common mediastinal tumors generally located in the posterior mediastinum. The most common origin is the intercostal nerve or the sympathetic chain. These tumors rarely arise from vagus nerve in the anterior mediastinum. The English literature demonstrates a total of 29 cases, which are more often on the left than the right. Here, we present another case: a 41-year-old man with a history of chronic cough for 10 years, whose chest radiograph showed a homogenous mass in the right anterosuperior mediastinum. The chest CT scan revealed a well-defined mass, 4-cm in diameter, located at the right side of trachea. Marked compression and lateral displacement of the R't innominate vein were noted. The mass was heterogenous with partial area of relative lower density and only mild enhancement was noted after contrast medium infusion. Sternotomy with tumor resection from the right vagus nerve was done. The histological diagnosis was schwannoma.
胸内神经源性肿瘤是相对常见的纵隔肿瘤，通常位于后纵隔。最常见的起源是肋间神经或交感神经链。这些肿瘤很少起源于前纵隔的迷走神经。英文文献中共报道了29例，左侧发病多于右侧。在此，我们报告另一例：一名41岁男性，有10年慢性咳嗽病史，胸部X线片显示右前上纵隔有一均匀肿块。胸部CT扫描显示一个边界清晰的肿块，直径4厘米，位于气管右侧。可见无名静脉明显受压并向外侧移位。肿块密度不均匀，部分区域密度相对较低，注入造影剂后仅见轻度强化。行胸骨切开术，从右迷走神经处切除肿瘤。组织学诊断为神经鞘瘤。
