Introduction: Primary pulmonary leiomyosacromas are a subset of the rare sarcomatous lung neoplasms, found to be less than 0.5% of the organ's primary malignant tumors (Attanoos et al., 1996). Presentation of case: We describe here a case of a 69-year-old woman who presented with heart palpitations, incidentally found to have a large lung mass abutting the left inferior pulmonary veins. Challenging tissue diagnosis led to invasive alternatives; attempted full neoplastic resection and pneumonectomy. Discussion: The mainstay of treatment for these tumors is complete surgical resection. Chemotherapy and radiation can be helpful adjuncts as well. Conclusion: This case presents a unique invasion pattern of a primary leiomyosarcoma of the lung, our diagnostic process, and surgical intervention.
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机译：简介：原发性肺平滑肌肉瘤是罕见的肉瘤性肺肿瘤的一部分，被发现少于器官原发性恶性肿瘤的0.5％（Attanoos et al。，1996）。病例介绍：我们在这里描述了一个69岁的妇女，该妇女表现出心，偶然发现其肺大肿块紧靠左下肺静脉。具有挑战性的组织诊断导致了侵入性替代方法;试图进行完整的肿瘤切除和肺切除术。讨论：这些肿瘤的主要治疗方法是完全手术切除。化学疗法和放射疗法也可能是有用的辅助手段。结论：本病例显示了原发性肺平滑肌肉瘤的独特侵袭模式，我们的诊断过程和外科手术干预。
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