A 22-year-old woman presented with intermittent blood-tinged sputum for about 3 years. She reported experiencing exertional dyspnoea and had no history of chronic disease, family history or smoking. On physical examination, mild coarse breathing sounds and wheezing on the upper sternum were auscultated. Lab results were non-specific. Chest CT scan (figure 1A,B) revealed a heterogeneous enhancing endotracheal mass of approximately 1.9 cm at mid-trachea extending to the boundary of the right tracheal wall or through the tracheal wall but not invading adjacent structures. The bronchoscopy showed a tracheal mass characterised by a lobulated surface with hypervascularity (figure 1C). 2-Deoxy-2-[18F]-fluorodeoxyglucose (FDG) positron emission tomography (PET)-CT demonstrated mild to moderate uptake increase of FDG (figure 1D) and no definitive invasion to the neighbouring structures was observed on images (figure 1E). The tracheal mass was resected with a sufficient resection margin via uniportal video-assisted thoracic surgery and was reconstructed by end-to-end anastomosis. Figure 1 (A, B) Images on contrast-enhanced chest CT showing a 1.9×1 cm endotracheal mass with heterogeneous enhancement at mid-trachea (yellow arrow). (C) Initial diagnostic flexible fibreoptic …

中文翻译：

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罕见的气管腺泡细胞癌导致年轻人中央气道阻塞


一名 22 岁女性出现间歇性带血痰约 3 年。她报告出现劳力性呼吸困难，没有慢性病史、家族史或吸烟史。体格检查听诊可闻及轻微粗重的呼吸音和胸骨上部喘息。实验室结果是非特异性的。胸部 CT 扫描 （图 1A、B） 显示气管中部约 1.9 cm 的异质性增强气管内肿块延伸到右侧气管壁边界或穿过气管壁，但未侵入邻近结构。支气管镜检查显示气管肿块，其特征是分叶状表面伴有血统丰富（图 1C）。2-脱氧-2-[18F]-氟代脱氧葡萄糖 （FDG） 正电子发射断层扫描 （PET）-CT 显示 FDG 的轻度至中度摄取增加（图 1D），并且在图像上未观察到对邻近结构的明确侵袭（图 1E）。通过单门视频辅助胸外科手术切除气管肿块，并具有足够的切除边缘，并通过端对端吻合重建。图 1 （A， B） 胸部造影剂增强 CT 上的图像显示 1.9×1 cm 的气管内肿块，气管中部有异质性增强（黄色箭头）。（C） 初始诊断柔性光纤...