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Clinical Features of Primary Pulmonary Artery Sarcoma: A Systematic Review and Pooled Analysis
Fumihiro Kashizaki1, Hao Chen1, Nanami Tsuchiya1
1Department of Respiratory Medicine, Yokohama Minami Kyosai Hospital, Yokohama, Japan.
Archivos De Bronconeumologia
|January 18, 2025
Summary
Primary pulmonary artery sarcoma (PPAS) is rare, but advanced imaging like 18F-FDG PET/CT aids diagnosis. Complete surgical resection significantly improves overall survival (OS) for PPAS patients.
Area of Science:
- Oncology
- Radiology
- Cardiovascular Surgery
Background:
- Primary pulmonary artery sarcoma (PPAS) is a rare malignancy with often non-specific clinical presentations.
- Diagnostic challenges persist, potentially impacting patient outcomes and treatment strategies.
- Recent advancements in medical imaging may offer improved diagnostic capabilities for PPAS.
Purpose of the Study:
- To conduct a pooled analysis of case reports and series on Primary Pulmonary Artery Sarcoma (PPAS).
- To analyze the clinical characteristics and overall survival (OS) of PPAS patients in the era of advanced medical imaging.
- To evaluate the role of modern imaging modalities in differentiating PPAS from other conditions like pulmonary thromboembolism (PTE).
Main Methods:
- A comprehensive literature search was performed on PubMed and CINAHL for studies published between January 1, 2014, and December 31, 2023.
- Data extraction included patient demographics, diagnostic findings, treatment modalities, and survival outcomes for confirmed PPAS cases.
- Pooled analysis was conducted to assess clinical features and overall survival (OS) trends.
Main Results:
- 643 PPAS patients were analyzed; initial misdiagnosis as pulmonary thromboembolism (PTE) was common (70.6%).
- Computed tomography (CT)-integrated positron emission tomography with 2-deoxy-2-18F-fluoro-d-glucose (18F-FDG PET/CT) showed suggestive findings in 93.9% of cases.
- Surgery (81.4%) and chemotherapy (66.4%) were common treatments, with complete surgical resection and chemotherapy for advanced stages correlating with improved overall survival (OS) (median OS: 31 months).
Conclusions:
- Advanced imaging, specifically 18F-FDG PET/CT and multi-detector-row CT, can effectively differentiate PPAS from PTE.
- These imaging technologies appear to contribute to earlier diagnosis and potentially improved overall survival (OS) in PPAS patients.
- Complete surgical resection is a critical factor in achieving longer overall survival (OS) for individuals diagnosed with PPAS.
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