Rohlfing B M
Radiology. 1977 May;123(2):283-5. doi: 10.1148/123.2.283.
Many patients carry internal markers of pulmonary parenchymal anatomy: calcified granulomas. When such granulomas are present, their movement is a direct sign of significant parenchymal collapse.
钙化肉芽肿。当出现此类肉芽肿时,其移动是实质显著塌陷的直接征象。