1. Clinical Outcome of Patients with Pelvic and Retroperitoneal Bone and Soft Tissue Sarcoma: A Retrospective Multicenter Study in Japan
- Author
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Toshiyuki Takemori, Teruya Kawamoto, Hitomi Hara, Naomasa Fukase, Shuichi Fujiwara, Ikuo Fujita, Takuya Fujimoto, Masayuki Morishita, Kazumichi Kitayama, Shunsuke Yahiro, Tomohiro Miyamoto, Masanori Saito, Jun Sugaya, Katsuhiro Hayashi, Hiroyuki Kawashima, Tomoaki Torigoe, Tomoki Nakamura, Hiroya Kondo, Toru Wakamatsu, Munenori Watanuki, Munehisa Kito, Satoshi Tsukushi, Akihito Nagano, Hidetatsu Outani, Shunichi Toki, Shunji Nishimura, Hiroshi Kobayashi, Itsuo Watanabe, Yusuke Demizu, Ryohei Sasaki, Takumi Fukumoto, Takahiro Niikura, Ryosuke Kuroda, and Toshihiro Akisue
- Subjects
pelvis ,retroperitoneum ,bone and soft tissue sarcoma ,prognosis ,prognostic factors ,Cancer Research ,Oncology - Abstract
This study aimed to retrospectively analyze the clinical outcomes of patients with pelvic and retroperitoneal bone and soft tissue sarcoma (BSTS). Overall, 187 patients with BSTS in the pelvis and retroperitoneal region treated at 19 specialized sarcoma centers in Japan were included. The prognostic factors related to overall survival (OS), local control (LC), and progression-free survival (PFS) were evaluated. The 3-year OS and LC rates in the 187 patients were 71.7% and 79.1%, respectively. The 3-year PFS in 166 patients without any distant metastases at the time of primary tumor diagnosis was 48.6%. Osteosarcoma showed significantly worse OS and PFS than other sarcomas of the pelvis and retroperitoneum. In the univariate analyses, larger primary tumor size, soft tissue tumor, distant metastasis at the time of primary tumor diagnosis, P2 location, chemotherapy, and osteosarcoma were poor prognostic factors correlated with OS. Larger primary tumor size, higher age, soft tissue tumor, chemotherapy, and osteosarcoma were poor prognostic factors correlated with PFS in patients without any metastasis at the initial presentation. Larger primary tumor size was the only poor prognostic factor correlation with LC. This study has clarified the epidemiology and prognosis of patients with pelvic and retroperitoneal BSTS in Japan.
- Published
- 2022