Abstract：
BACKGROUND: Organizing pneumonia (OP) is a pathologic diagnosis with clinical and imaging manifestations that often resemble other diseases, such as infections and cancers, which can lead to delays in diagnosis and inappropriate management of the underlying disease. In this article, we present a case of organized pneumonia that resembles lung cancer.
METHODS: We report a case of initial suspicion of pulmonary malignancy, treated with anti-inflammatory medication and then reviewed with CT suggesting no improvement, and finally confirmed to be OP by pathological biopsy taken via transbronchoscopy. A joint literature analysis was performed to raise clinicians\' awareness of the diagnosis and treatment of OP.
RESULTS: Initially, because of the atypical auxiliary findings, we thought that the disease turned out to be a lung tumor, which was eventually confirmed as OP by pathological diagnosis.
CONCLUSIONS: The diagnosis and treatment of OP requires a combination of clinical information and radiological expertise, as well as biopsy to obtain histopathological evidence. That is, clinical-imaging-pathological tripartite cooperation and comprehensive analysis.
METHODS: We report a case of initial suspicion of pulmonary malignancy, treated with anti-inflammatory medication and then reviewed with CT suggesting no improvement, and finally confirmed to be OP by pathological biopsy taken via transbronchoscopy. A joint literature analysis was performed to raise clinicians\' awareness of the diagnosis and treatment of OP.
RESULTS: Initially, because of the atypical auxiliary findings, we thought that the disease turned out to be a lung tumor, which was eventually confirmed as OP by pathological diagnosis.
CONCLUSIONS: The diagnosis and treatment of OP requires a combination of clinical information and radiological expertise, as well as biopsy to obtain histopathological evidence. That is, clinical-imaging-pathological tripartite cooperation and comprehensive analysis.
摘要：
背景：机化性肺炎（OP）是一种具有临床和影像学表现的病理诊断，通常与其他疾病相似，比如感染和癌症，这可能导致诊断延误和对潜在疾病的不当管理。在这篇文章中,我们介绍了一例类似肺癌的有组织肺炎。
方法：我们报告一例最初怀疑肺部恶性肿瘤，用抗炎药治疗，然后用CT检查，提示没有改善，经支气管镜病理活检证实为OP。进行了联合文献分析，以提高临床医生对OP的诊断和治疗的认识。
结果：最初，由于非典型的辅助发现，我们认为这种疾病是肺部肿瘤，最终经病理诊断为OP。
结论：OP的诊断和治疗需要结合临床信息和放射学专业知识，以及活检以获得组织病理学证据。也就是说,临床-影像-病理三方合作及综合分析。
方法：我们报告一例最初怀疑肺部恶性肿瘤，用抗炎药治疗，然后用CT检查，提示没有改善，经支气管镜病理活检证实为OP。进行了联合文献分析，以提高临床医生对OP的诊断和治疗的认识。
结果：最初，由于非典型的辅助发现，我们认为这种疾病是肺部肿瘤，最终经病理诊断为OP。
结论：OP的诊断和治疗需要结合临床信息和放射学专业知识，以及活检以获得组织病理学证据。也就是说,临床-影像-病理三方合作及综合分析。
