你错报了多少“肺疱”与“肺大疱”？
在我们报告中常常会出现“肺大疱”或者“肺大泡”的字样，到底是哪个正确的呢？这里需要指出是应该用“肺大疱”这一专业术语。肺大疱的英文称为“bulla”，我们先看看Fleischner Society是如何解释的。
bulla（肺大疱）
Pathology：An airspace measuring more than 1 cm—usually several centimeters—in diameter, sharply demarcatedby a thin wall that is no greater than 1 mm in thickness. A bulla is usually accompanied by emphysematous
changes in the adjacent lung.
病理：大于1cm且与周围分界清晰的薄壁腔隙（通常为数厘米），壁＜1mm，通常肺大疱临近周围伴随肺气肿改变。
Radiographs and CT scans.—A bulla appears as a rounded focal lucency or area of decreased attenuation, 1 cm or more in diameter, bounded by a thin wall (Fig 16). Multiple bullae are often present and are associated with other signs of pulmonary emphysema (centrilobular and paraseptal).
平片与CT扫描： 肺大疱表现为直径≥1cm的局灶性圆形透亮影或密度减低区，以薄壁为界。多发肺大疱很常见，并常伴有肺气肿征象（小叶中央型肺气肿、间隔旁型肺气肿）
来源：ECR
bleb（疱）
Anatomy：A bleb is a small gas-containing space within the visceral pleura or in the subpleural lung, not larger than1 cm in diameter.
解剖：“疱”是指在脏层胸膜内或在胸膜下肺内的小含气腔隙，直径小于1cm。
疱与肺大疱之间的差异
CT scans：A bleb appears as a thin-walled cystic air space contiguous with the pleura. Because the arbitrary (size) distinction between a bleb and bulla is of little clinical importance, the use of this term by radiologists is discouraged.
CT扫描：与胸膜相邻的薄壁囊状含气腔隙。由于疱与大疱的大小界定没有太多的临床意义，因此不推荐影像科医生使用疱（bleb）这个词。
来源：ECR
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