Table 1. Histological data of group 1 and group 2.

Histologic type	Number of patients
Group 1
High-grade sarcoma	1
Malignant solitary fibrous tumor	1
Ewing’s sarcoma	2
Leiomyosarcoma	1
Chondrosarcoma	8
Liposarcoma	2
Myxofibrosarcoma	1
Giant cell tumor of the bone	1
Total	17
Group 2
Squamous carcinoma	31
Adenocarcinoma	14
Pleomorphic large cell carcinoma	2
Undifferentiated large cell carcinoma	6
Anaplastic carcinoma	1
Total	54

Group 1, primary chest wall tumors; group 2, non-small cell lung cancer (NSCLC).