Intrathoracic schwannoma of vagus nerve.
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.
Lai
R S
RS
Department of Medicine, Veterans General Hospital-Kaohsiung, Taiwan, R.O.C.
Lu
J Y
JY
Chang
J M
JM
Hsu
W H
WH
Tseng
H H
HH
D000328:Adult; D003390:Cranial Nerve Neoplasms / Q000000981:diagnostic imaging / Q000601:surgery*; D006801:Humans; D008297:Male; D009442:Neurilemmoma / Q000000981:diagnostic imaging / Q000601:surgery*; D011859:Radiography; D013899:Thoracic Neoplasms / Q000000981:diagnostic imaging / Q000601:surgery*; D014630:Vagus Nerve