28 results
COVID-19 Patterns of Lung Findings on Chest CT
1. Reverse Halo Sign
2. ARDS
3. Crazy-Paving Pattern
4. Bilateral Peripheral
COVID-19 Patterns ... of Lung Findings ... Organizing Pneumonia ... Pulmonary #ChestCT #radiology ... #CTChest #diagnosis
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
- Clinical manifestations ... - Imaging: • CXR ... - Diagnosis: ... , CPK, anti-scl70 ... DDX: • CAP,
Halo Sign on Chest CT
 • SPN or mass surrounded by a circumferential GGO
 • DDx:
Halo Sign on Chest ... CT • SPN or mass ... #CT #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
There is a hydropneumothorax.
Notice the air-fluid level (blue arrow).
The upper lobe is still attached to the
So we can assume ... is a possible diagnosis ... LAM is a rare lung ... #Clinical #Radiology ... #CXR #Pneumothorax
Septic emboli
Septic emboli usually present as multiple ill-defined nodules.
In about 50% cavitation is seen.
CT demonstrates more
film and can suggest ... the diagnosis in ... the proper clinical ... #Clinical #Radiology ... #CXR #CTChest #
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... Lung Abscess - Clinical ... Blood cultures • CXR ... early disease) • CXR ... upright or lat
Miliary Pattern - Chest Radiology
 • Miliary opacities are scattered, small (1 -4 mm) nodules
 •
Radiology • Miliary ... throughout the lungs ... Differential Diagnosis ... rarely typical pneumonia ... #CXR #clinical
Corona Radiata (Sunburst sign) on Chest CT
 • SPN or mass, with spiculated and inegular margins
SPN or mass, with ... : Bronchogenic Ca ... #CT #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
Notice that there are multiple densities in both lungs.
The larger ones are ill-defined and maybe there
densities in both lungs ... the differential diagnosis ... The lab-findings ... #Clinical #Radiology ... #CXR #Peripheral
Sand Storm Sign on Chest CT
 • Diffusely dense pulmonary micronodular calcifications. Note the black pleural
Sand Storm Sign ... arrow) • DDx: PAM ... #CT #Lung #Pulmonary ... #diagnosis #radiology ... #clinical