When the bullae are subepidermal, they are tense, and ulceration and scarring may result.

如果大疱位于表皮下, 则疱壁紧张, 最终可能形成溃疡和瘢痕.

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In advanced stage in 15 cases, chronic bronchitis, pulmonary interstitial fibrosis and pulmonary bullae.

15例晚期出现慢性支气管炎 、 肺间质纤维化及肺大泡等改变.

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CT scans identified bullae in all of the patients, with nine having bullous disease.

CT扫描显示所有患者都存在肺大泡, 其中9例患有重症肺大泡病.

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