%0 Case Reports
%T A bone tumor-like chest wall mass lesion with pathological rib fractures observed 13 years after lung stereotactic body radiotherapy: A case report.
%A Matsuda M
%A Ichikawa J
%A Komiyama T
%A Onohara K
%A Saito M
%A Nemoto H
%A Kubota M
%A Onishi H
%J Thorac Cancer
%V 0
%N 0
%D 2024 Aug 7
%M 39113470
%F 3.223
%R 10.1111/1759-7714.15419
%X Although stereotactic body radiotherapy (SBRT) is a curative treatment option for stage I non-small cell lung cancer (NSCLC), limited data are available regarding chest wall (CW) toxicities during an extended follow-up of over 10 years. We report an unusual case of a bone tumor-like CW mass lesion with pathological rib fractures observed 13 years after SBRT for peripheral lung cancer. Despite the initial suspicion of radiation-induced sarcoma, a subsequent incisional biopsy revealed no evidence of malignancy, and a definitive diagnosis of osteonecrosis was made. Thus, long-term observation of over 10 years is required to identify late chronic complications following SBRT.