Shifting granuloma sign refers to a shift in the location of a parenchymal lesion visible on prior films that may be seen in the presence of atelectasis.
For example, this occurs when a calcified granuloma is present in a lung and a significant parenchymal collapse "shifts" it from one location to another.
- 1. Rohlfing BM. The shifting granuloma: an internal marker of atelectasis. Radiology. 1977;123 (2): 283-5. Pubmed citation
- 2. Webb RT, Beaton JN, Wilson FJ et-al. Shifting granuloma: a sign of lobar collapse. Chest. 1984;85 (4): 559-60. Pubmed citation
- 3. W. Richard Webb, Charles B. Higgins. Thoracic Imaging. (2010) ISBN: 9781605479767