A retrospective, single-center cohort study on 65 patients with primary retroperitoneal liposarcoma

被引：22

作者：

Wu, Yi-Xi ^{[1
,2
]}

Liu, Jun-Yan ^{[1
,2
]}

Liu, Jia-Jia ^{[1
,2
]}

Yan, Peng ^{[1
,2
]}

Tang, Bo ^{[1
,2
]}

Cui, You-Hong ^{[3
,4
]}

Zhao, Yong-Liang ^{[1
,2
]}

Shi, Yan ^{[1
,2
]}

Hao, Ying-Xue ^{[1
,2
]}

Yu, Pei-Wu ^{[1
,2
]}

Qian, Feng ^{[1
,2
]}

机构：

[1] Third Mil Med Univ, Southwest Hosp, Ctr Minimal Invas Gastrointestinal Surg, Key Lab Tumor Immunopathol,Minist Educ China, 29 Gao Tan Yan St, Chongqing 400038, Peoples R China

[2] Third Mil Med Univ, Southwest Hosp, Dept Gen Surg, Key Lab Tumor Immunopathol,Minist Educ China, 29 Gao Tan Yan St, Chongqing 400038, Peoples R China

[3] Third Mil Med Univ, Southwest Hosp, Inst Pathol, Key Lab Tumor Immunopathol,Minist Educ China, Chongqing 400038, Peoples R China

[4] Third Mil Med Univ, Southwest Hosp, Southwest Canc Ctr, Key Lab Tumor Immunopathol,Minist Educ China, Chongqing 400038, Peoples R China

来源：

ONCOLOGY LETTERS | 2018年 / 15卷 / 02期

关键词：

disease-specific survival; local recurrence primary retroperitoneal liposarcoma; immunohistochemistry; primary tumor complete resection; SOFT-TISSUE SARCOMA; POPULATION-BASED-ANALYSIS; PROGNOSTIC-FACTORS; LIPOMATOUS TUMORS; RADIATION-THERAPY; CANCER CENTER; SURVIVAL; RESECTION; MANAGEMENT; RECURRENCE;

D O I：

10.3892/ol.2017.7533

中图分类号：

R73 [肿瘤学];

学科分类号：

100214 ;

摘要：

Primary retroperitoneal liposarcoma (PRPLS) is the most common soft tissue malignancy of the retro-peritoneum. To determine the pathological features and the curative effects of surgery in patients with PRPLS, and to elucidate key prognostic factors, the present study retrospectively analyzed the clinical cases of 65 patients with PRPLS. Immunohistochemical analysis demonstrated that vimentin and Ki-67 are better indicators for PRPLS immunohistochemical diagnosis compared with S-100 protein. S-100 protein was predominantly expressed in well-differentiated PRPLS. Positive expression of vimentin and Ki-67 were observed in almost all PRPLS samples, and Ki-67 exhibited a higher expression level in high-grade PRPLS. The level of Ki-67 expression was negatively correlated with disease-specific survival (DSS). Survival analysis revealed that the pathological subtype and histological grade were associated with DSS and local recurrence in the patients, whereas the tumor burden was associated with DSS but not local recurrence. In addition, complete tumor resection and contiguous organ resection were able to improve DSS. Microscopically positive margins did not affect DSS, whereas gross margins did. Multivariate analysis revealed that pathological subtype, histological grade and contiguous organ resection were independent prognostic factors, and that histological grade was an independent factor for local recurrence. Patient sex and age at presentation were not independent factors associated with prognosis or local recurrence. Correlation analysis demonstrated that postoperative local recurrence significantly affected DSS, and local recurrence was the most common cause of mortality among patients. Histological grade was strongly associated with the invasion of adjacent organs but not with tumor burden. Furthermore, the tumor burden was not associated with recurrence or tumor invasion of adjacent organs. Ki-67 expression was associated with prognosis. Pathological subtype, histological grade and contiguous organ resection were independent prognostic factors, while histological grade was an independent factor which affected tumor recurrence.

引用

页码：1799 / 1810

页数：12

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