Journal
RESPIRATORY INVESTIGATION
Volume 52, Issue 3, Pages 199-202Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.resinv.2013.08.004
Keywords
Reversed halo sign; Central lucencies; Pulmonary infarction; Tumor emboli; Organizing pneumonia
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We describe the case of a 79-year-old woman with pulmonary infarction due to tumor emboli whose high-resolution CT (HRCT) scan demonstrated the reversed halo sign. The patient had gastric cancer and died because of cancer-related cerebral infarction. On autopsy, the central ground-glass area of the reversed halo sign on HRCT corresponded to pulmonary edema associated with alveolar septal capillary metastasis, whereas the peripheral ring-like consolidation consisted of a hemorrhagic infarct with tumor emboli. The present case is important because a detailed pathologic correlation with this unique HRCT appearance was revealed. (C) 2013 The Japanese Respiratory Society. Published by Elsevier B.V. Allrights reserved.
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