34 results
COVID-19 Patterns of Lung Findings on Chest CT
1. Reverse Halo Sign
2. ARDS
3. Crazy-Paving Pattern
4. Bilateral Peripheral
of Lung Findings ... Reverse Halo Sign ... Halo Sign 6. ... #ChestCT #radiology ... #CTChest #diagnosis
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... in interstitial lung ... is interstitial lung ... seen and in many cases ... #Diagnosis #Radiology
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
indicates unknown cause ... have specific patterns ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... IdiopathicInterstitialPneumonia #ILD
Septic emboli
Septic emboli usually present as multiple ill-defined nodules.
In about 50% cavitation is seen.
CT demonstrates more
can suggest the diagnosis ... feeding vessel sign ... feeding vessel sign ... densities iin the left lung ... #Clinical #Radiology
Here are the most common examples of these four patterns on a chest x-ray (click image
of these four patterns ... on a chest x-ray ... Nodule - Multiple Masses ... Atelectasis #Diagnosis ... #Clinical #Radiology
Whenever you see an area of increased density within the lung, it must be the result
of these four patterns ... Consolidation - any pathologic ... or multifocal ill-defined ... #Diagnosis #Radiology ... Consolidation #Patterns
Notice that there are multiple densities in both lungs.
The larger ones are ill-defined and maybe there
densities in both lungs ... masses. ... the differential diagnosis ... There was no eosinophilia ... #Clinical #Radiology
Tram Track Sign on Chest CT
 • Parallel, non-tapering airways, extending to the lung periphery.
 •
Tram Track Sign ... extending to the lung ... bronchiectasis, CF, ILD ... #Tram #Track #Sign ... #diagnosis #radiology
Air Bronchogram Sign on Chest CT
 • Patent airways surrounded by opacified lung
 • DDx: pna,
Air Bronchogram Sign ... edema, severe ILD ... #Bronchogram #Sign ... #CT #Lung #Pulmonary ... #diagnosis #radiology
Kussmaul's sign in Constrictive Pericarditis 

A 50-year-old woman with a remote history of mediastinal lymphoma (age
A 50-year-old ... blue marks on her chest ... the underlying diagnosis ... Causes = RV failure ... Pericarditis #Cardiology