7.The pulmonary hamartoma is seen microscopically to be composed mostly of benign cartilage on the right that is jumbled with a fibrovascular stroma and scattered bronchial glands on the left.

• 显微镜下，肺错构瘤主要由良性软骨(右侧)构成，它与间质混在一起，左边是散在的支气管腺体。