The Effect of Histopathological Subtype on 5 Year and 10 Year Overall Survival in Primary Malign Tumors of the Chest Wall

Primary tumors of the chest wall are rare tumors comprising 5% of thoracic neoplasms. The current study was designed to evaluate the effect of histopathological subtype on the 5-year and 10-year overall survival and regional recurrence in primary malignant tumors of the chest wall. From December 2007 to December 2019, the data of 20 patients were analyzed. Overall survival rates, median overall survival, regional tumor recurrence and median disease-free survival rates were compared retrospectively between histopathological subtypes. Chondrosarcoma (n=7), desmoid tumor (n=6), undifferentiated pleomorphic sarcoma [(UPS), (n=4)], Ewing's sarcoma (n=1), malignant peripheral nerve sheath tumor (n=1), and liposarcoma (n=1) were the subtypes identified. A lower median overall survival was detected in the UPS histopathological subtype (p = 0.004). The 5 and 10-year overall survival rates in the chondrosarcoma group were 71% and 37%, respectively; desmoid tumors were found in 83% and 42%, respectively. There was no patient with 5-year survival in UPS. A shorter median overall survival was found in lateral wall masses compared to anterior and posterior wall masses (p = 0.001). During the follow-up, 10 patients (50%) died. It was observed that the median disease-free survival in the UPS subtype was shorter compared to the other subtypes (p = 0.002). The regional recurrence rate was 57%, 17% and 75% in chondrosarcoma, desmoid tumor and UPS, respectively. In UPS, a primary malignant tumor of the chest wall, 5-year and 10-year overall survival rates and median overall survival; it was found to be significantly shorter than the chondrosarcoma and desmoid tumor groups.