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Reversed halo sign in pulmonary infarction with tumor emboli: a case report
Hironobu Goshima1, Hiromi Tomioka1, Chihiro Nishio1
1Department of Respiratory Medicine, Kobe City Medical Center West Hospital, 4, 2-chome, Ichibancho, Nagata-ku, Kobe 653-0013, Japan.
Abstract:
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.
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