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Abstract：
Pulmonary osseous metaplasia is a disease in which mature bone is found within the parenchyma of the lung. The current study presents a case of pulmonary osseous metaplasia in a 64-year-old female. The patient was previously diagnosed with transitional cell carcinoma (TCC) of the lower ureter. During a routine check-up, an enhancing basal lung nodule was found on chest computed tomography scan, which was suspected to be metastatic lung disease. The patient underwent a thoracoscopic resection of the nodule. The histopathological examination of the specimen confirmed it to be myeloid osseous metaplasia. The disease usually has no significant complications and can also be found in association with other pulmonary diseases. Very limited information is available on the phenomenon; therefore, there is no exact treatment guide for clinicians to follow. In conclusion, myeloid osseous metaplasia of the lung is a rare finding, and based on this report, it may be associated with TCC.
摘要：
肺骨化生是一种在肺实质内发现成熟骨的疾病。当前的研究显示了一名64岁女性的肺骨化生病例。该患者先前被诊断为输尿管下段移行细胞癌（TCC）。在例行检查中，在胸部计算机断层扫描扫描中发现了一个增强的基底肺结节，怀疑是转移性肺病。患者接受了胸腔镜下结节切除术。标本的组织病理学检查证实其为髓样骨化生。该疾病通常没有明显的并发症，也可以与其他肺部疾病有关。关于这种现象的信息非常有限；因此，没有确切的治疗指南供临床医生遵循.总之,肺髓样骨化生是一个罕见的发现，根据这份报告，它可能与TCC有关。
