Key result
Surgical resection of a metachronic lower-back body wall metastasis from retroperitoneal dedifferentiated liposarcoma resulted in 6 months of recurrence-free survival.
Case Report (n=1)
Surgical resection of a metastatic tumor from retroperitoneal liposarcoma may allow for long-term survival in select patients.
May support metastasectomy for distant metastases in select retroperitoneal liposarcoma cases; hypothesis-generating and should not yet change practice.
症例は86歳男性．2011年に後腹膜脱分化脂肪肉腫で根治手術を施行されていた．切除後２年のフォローctで左肺に転移が疑われる肺腫瘍を認め，左肺部分切除を施行されたが病理組織学的所見は肺孤在性線維性腫瘍と診断された．後腹膜腫瘍切除後２年６カ月のフォローctで左腰背部に腫瘤性病変を認め，約１年後増大傾向もあるため外科的切除を行った．病理組織学的所見では後腹膜脱分化型脂肪肉腫の転移であると診断された．転移巣切除後６カ月間再発を認めない．後腹膜脂肪肉腫の遠隔転移巣に対する外科的切除についての報告例は少ないが，症例によっては長期生存が望める可能性がある．若干の文献的考察を加えて報告する．
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Fukushima et al. (2015) conducted a case report in Retroperitoneal dedifferentiated liposarcoma with metachronic lower-back body wall metastasis (n=1). Surgical resection was evaluated on Recurrence-free survival after resection of metastatic tumor. Surgical resection of a metachronic lower-back body wall metastasis from retroperitoneal dedifferentiated liposarcoma resulted in 6 months of recurrence-free survival.