Diagnostic, survival, and tumor control outcomes of parapharyngeal space liposarcoma: a systematic review.

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Title: Diagnostic, survival, and tumor control outcomes of parapharyngeal space liposarcoma: a systematic review.
Authors: Vasudevan, Srivatsa Surya (AUTHOR), Candelo, Estephania (AUTHOR), Kandrikar, Tiba Yamin (AUTHOR), Janus, Jeffrey R. (AUTHOR)
Source: Acta Oto-Laryngologica. Apr2025, Vol. 145 Issue 4, p348-354. 7p.
Subjects: Head & neck cancer diagnosis, Cytology, Cancer relapse, Treatment effectiveness, Preoperative care, Descriptive statistics, Liposarcoma, Systematic reviews, MEDLINE, Kaplan-Meier estimator, Needle biopsy, Online information services, Progression-free survival, Survival analysis (Biometry), Overall survival
Abstract (English): Background: Parapharyngeal space liposarcomas (PPS-LS) are rare tumors often associated with a moderate-to-poor prognosis. Objectives: This study aims to assess tumor control and survival outcomes across the various subtypes of PPS-LS. Material and methods: We conducted a systematic review of cases using PubMed, OVID, Scopus, Web of Science, ScienceDirect, and EBSCO from inception to October 2024. Given the data on individual patient follow-up, Kaplan–Meier survival analysis was utilized to calculate disease-free survival (DFS) and disease-specific survival (DSS). Results: Out of 303 articles, 10 studies with 11 patients (72.7% male) met the inclusion criteria, with a mean age of 51.3 years (range: 12–77.5). Preoperative fine needle aspiration cytology was conducted in 45.4%, with 80% yielding inconclusive results. The 2-year and 5-year DFS rates for PPS-LS were 64% and 50%, respectively, while the 2-year DSS rate was 84%. Tumor recurrence occurred in 36.3% of patients, with an average of 2.5 recurrences per patient, specifically the myxoid subtype of PPS-LS. Conclusion: This systematic review highlights the varied prognostic outcomes of PPS-LS and its subtypes, emphasizing the need for vigilant surveillance to improve DFS and reduce recurrence rates. Significance: This provides surgeons with critical insights into probable prognostic outcomes when dealing with specific subtypes of PPS-LS. [ABSTRACT FROM AUTHOR]
Abstract (Chinese): 咽旁间隙脂肪肉瘤 (PPS-LS) 是一种罕见肿瘤, 通常预后中等至不良。 本研究旨在评估 PPS-LS 各种亚型的肿瘤控制和生存结果。 我们使用 PubMed、OVID、Scopus、Web of Science、ScienceDirect 和 EBSCO 对从开始到 2024 年 10 月的病例进行了系统回顾。根据个体患者随访数据, 使用 Kaplan-Meier 生存分析计算无病生存期 (DFS) 和疾病特异性生存期 (DSS)。 在 303 篇文章中, 10 项研究(11 名患者, 72.7% 为男性)符合纳入标准, 平均年龄为 51.3 岁(范围: 12-77.5 岁)。 45.4% 的患者进行了术前细针穿刺细胞学检查, 其中 80% 的结果不确定。PPS-LS 的 两 年和 五年 DFS 率分别为 64% 和 50%, 而 两年 DSS 率为 84%。36.3% 的患者发生肿瘤复发, 平均每例患者复发 2.5 次, 尤其是 PPS-LS 的粘液样亚型。 本系统评价突显了 PPS-LS 及其亚型的不同预后结果, 强调需要进行警觉监测以改善 DFS 并降低复发率。 本研究为外科医生在处理 PPS-LS 的特定亚型时提供了对可能的预后结果的关键性理解。 [ABSTRACT FROM AUTHOR]
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Database: Psychology and Behavioral Sciences Collection
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Abstract:Background: Parapharyngeal space liposarcomas (PPS-LS) are rare tumors often associated with a moderate-to-poor prognosis. Objectives: This study aims to assess tumor control and survival outcomes across the various subtypes of PPS-LS. Material and methods: We conducted a systematic review of cases using PubMed, OVID, Scopus, Web of Science, ScienceDirect, and EBSCO from inception to October 2024. Given the data on individual patient follow-up, Kaplan–Meier survival analysis was utilized to calculate disease-free survival (DFS) and disease-specific survival (DSS). Results: Out of 303 articles, 10 studies with 11 patients (72.7% male) met the inclusion criteria, with a mean age of 51.3 years (range: 12–77.5). Preoperative fine needle aspiration cytology was conducted in 45.4%, with 80% yielding inconclusive results. The 2-year and 5-year DFS rates for PPS-LS were 64% and 50%, respectively, while the 2-year DSS rate was 84%. Tumor recurrence occurred in 36.3% of patients, with an average of 2.5 recurrences per patient, specifically the myxoid subtype of PPS-LS. Conclusion: This systematic review highlights the varied prognostic outcomes of PPS-LS and its subtypes, emphasizing the need for vigilant surveillance to improve DFS and reduce recurrence rates. Significance: This provides surgeons with critical insights into probable prognostic outcomes when dealing with specific subtypes of PPS-LS. [ABSTRACT FROM AUTHOR]
ISSN:00016489
DOI:10.1080/00016489.2025.2462688