Table 1.

Mediastinal MPNST：characteristics.

Case	Age	Sex	Symptoms	Location	Size(mm)	Preoperative diagnosis
1	17	M	Back pain, Cough	P	150	Neurogenic tumor
2	65	M	–	S	75	Mediastinal tumor
3	50	M	Back pain	P	70	Neurogenic tumor
4	45	F	Chest oppression, Cough	M	86	Lung tumor
5	55	F	–	S	110	Mediastinal tumor
6	72	M	Back pain	P	120	Schwannoma

P: posterior mediastinum, S: superior mediastinum, M, middle mediastinum.