A 73-year-old woman was found to have a pulmonary mass on a CT scan of the chest 10 years ago, but did not receive any treatment. Approximately 2 years ago, she started experiencing chest tightness and bloating, without other discomfort. These symptoms worsened half a month ago and were accompanied by dyspnoea. A CT scan (figure 1A,D) revealed a spherical mass in the left upper lobe lingular segment, with a uniform density, no calcification or fat density and a CT value of about 30 HU on plain scan. The margin of the mass was smooth without lobulation or spiculation, measuring approximately 47 mm × 46 mm in size. The contrast-enhanced scan showed significant heterogeneous enhancement in the arterial phase (figure …

中文翻译：

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肺血管周围上皮样细胞肿瘤


一名 73 岁的女性在 10 年前的胸部 CT 扫描中被发现有肺部肿块，但没有接受任何治疗。大约 2 年前，她开始出现胸闷和腹胀，没有其他不适。这些症状在半个月前恶化，并伴有呼吸困难。CT 扫描（图 1A、D）显示左上叶舌段有球形肿块，密度均匀，无钙化或脂肪密度，平扫 CT 值约为 30 胡。肿块边缘光滑，无分叶或裂孔，大小约为 47 mm × 46 mm。对比增强扫描显示动脉期显著的异质性增强（图 ...