Gastrointestinal metastasis from primary sarcomatoid carcinoma of the lung: a case report and review of the literature World Journal of Surgical Oncology (2015) 13:174 Chun-Hsien Chen, Wei-Ming Chen, Shui-Yi Tung, Cheng-Shyong Wu, Wei-Lin Tong, Kam-Fai Lee
and Kuo-Liang Wei
