Atollzeichen

Atoll-Zeichen

am ehesten im Rahmen einer gleichzeitig nachgewiesenen Lungenembolie. Diese möglicherweise mehrzeitig, also dieser Befund als älterer Restzustand einer kleinen Infarktpneumonie zu werten.

CT scan of

the chest of a 59-year-old with four months of progressive weight loss, fever, dry cough and dyspnea. it shows a reversed halo sign. A diagnosis of bronchiolitis obliterans organizing pneumonia was made.

Thorax CT of

a 74-year-old man with a long-standing pulmonary embolism (having lasted 3 months) of the artery of the right lower lobe, secondary to a leg fracture, and with long-standing hemoptysis. It shows the embolism, as well as a pulmonary infarction (white arrow) seen as a reverse halo sign (black arrow). Further information: Reverse halo sign

Thorax CT of

a 74-year-old man with a long-standing pulmonary embolism (having lasted 3 months) of the artery of the right lower lobe, secondary to a leg fracture, and with long-standing hemoptysis. It shows the embolism, as well as a pulmonary infarction seen as a reverse halo sign. Further information: Reverse halo sign

The Reversed

Halo Sign in Pulmonary Mucormycosis with cerebral dissemination in immunocompromised host.. Axial (a), sagittal (b) and coronal (c) chest CT demonstrate a pulmonary mass with three components: central ground glass opacity (“reversed halo sign”) (*) and peripheral (arrow) ground glass opacity (halo sign) and intermedial consolidation.

Atoll-Zeichen

("reversed halo sign") rechts dorsobasal bei Lungeninfarkt bei zentraler Lungenembolie.