# Clinicopathological Characteristics and Prognosis Analysis of 39 Patients with Pulmonary Sarcomatoid Carcinoma

**Authors:** Cen CHEN, Zhanliang REN, Yujie DONG, Ying WANG, Yuan GAO, Hongxia LI, Tongmei ZHANG

PMC · DOI: 10.3779/j.issn.1009-3419.2024.101.18 · Chinese Journal of Lung Cancer · 2024-07-20

## TL;DR

This study analyzes clinical features and survival outcomes of 39 patients with pulmonary sarcomatoid carcinoma, a rare and aggressive lung cancer subtype.

## Contribution

The study identifies PD-L1 expression, MET pathway abnormalities, and lymph node metastasis as key prognostic factors in pulmonary sarcomatoid carcinoma.

## Key findings

- PD-L1 expression ≥1% and MET pathway abnormalities are associated with poor prognosis in PSC patients.
- Lymph node metastasis is an independent risk factor for overall survival in PSC patients.
- Surgery-based combined treatment is the main approach for early and locally advanced PSC.

## Abstract

肺肉瘤样癌（pulmonary sarcomatoid carcinoma, PSC）是非小细胞肺癌（non-small cell lung cancer, NSCLC）的罕见类型，具有低发病率、高度恶性、强侵袭性、预后差的特点，当前无标准治疗方案。本研究拟通过收集PSC患者临床病理特征、当前诊治情况并分析预后因素，总结诊治经验，旨在提高临床对PSC的认识。

回顾性收集2013年12月至2023年12月于北京胸科医院确诊、接受治疗且临床资料完整的39例PSC患者的人口学信息、临床病理特征、肿瘤原发灶-淋巴结-转移（tumor-node-metastasis, TNM）分期和诊疗方案资料，并完成临床预后随访。应用Kaplan-Meier法进行单因素生存分析。

39例PSC患者年龄范围45-76岁，其中男性35例，女性4例，首诊临床表现缺乏特异性；20例患者接受手术治疗，19例患者行姑息性放化疗或对症支持治疗。患者1、5年生存率分别为61.90%、35.20%。单因素分析结果提示恶性肿瘤家族史、肿瘤部位、TNM分期、淋巴结转移、远处转移、是否手术、手术类型、治疗方案、细胞程序性死亡配体1（programmed cell death ligand 1, PD-L1）蛋白表达≥1%、间质上皮细胞转化因子（mesenchymal-epithelial transition factor, MET）通路异常与患者总生存期（overall survival, OS）有关（P<0.05）；多因素分析结果显示，淋巴结转移是患者OS的独立影响因素（P=0.037）。

PSC临床发病率低，多见于有吸烟史的老年男性。PD-L1蛋白表达≥1%及MET通路异常可提示患者不良预后，淋巴结转移是患者OS的独立危险因素。以手术为主的综合治疗是早期及局部晚期患者的主要治疗模式，靶向治疗和免疫治疗的临床应用价值有待进一步探索。

Clinical characteristics and univariate prognostic analysis of OS in 39 patients with PSC

Multivariate prognostic analysis of OS in 39 patients with PSC

## Linked entities

- **Diseases:** non-small cell lung cancer (MONDO:0005233)

## Full-text entities

- **Genes:** CD274 (CD274 molecule) [NCBI Gene 29126] {aka ADMIO5, B7-H, B7H1, PD-L1, PDCD1L1, PDCD1LG1}
- **Diseases:** TNM (MESH:D008207), NSCLC (MESH:D002289), Tumor (MESH:D009369), PSC (MESH:D002292), metastasis (MESH:D009362)
- **Species:** Homo sapiens (human, species) [taxon 9606]

## Full text

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## Figures

5 figures with captions in the complete paper: https://tomesphere.com/paper/PMC11331260/full.md

## References

16 references — full list in the complete paper: https://tomesphere.com/paper/PMC11331260/full.md

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Source: https://tomesphere.com/paper/PMC11331260