12 results
CT Lung Signs in Pulmonary Diseases - One Page Summary of Pulmonary Signs
 - Air Crescent
CT Lung Signs in ... Signs - Air Crescent ... sign - Feeding ... Diseases #diagnosis #differential ... #radiology
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
: 'signet ring sign ... central dot. - LIP #Clinical ... #Diagnosis #Radiology ... #Cysts #Differential ... #Comparison #Table
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
attenuation or air-filled ... pattern can be readily ... #Pulmonary #CTChest ... LowAttenuation #Differential ... #Diagram #Comparison
Septic emboli
Septic emboli usually present as multiple ill-defined nodules.
In about 50% cavitation is seen.
CT demonstrates more
CT demonstrates ... abutting the pleura, air-bronchograms ... vessel sign (7) ... #Clinical #Radiology ... #CXR #CTChest #
There is a hydropneumothorax.
Notice the air-fluid level (blue arrow).
The upper lobe is still attached to the
Notice the air-fluid ... small airways leading ... to pulmonary cyst ... #Clinical #Radiology ... #CXR #Pneumothorax
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
associated pulmonary ... air, but occasionally ... #Clinical #Diagnosis ... #Radiology #CTChest ... Emphysema #Comparison
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
no evidence of cystic ... Nasal polyps and signs ... thickening, presence of air-fluid ... high-resolution chest CT ... #differential #
When a rib fracture heals, the callus formation may create a mass-like appearance (blue arrow).
Sometimes a
Sometimes a CT is ... necessary to differentiate ... with pulmonary ... #Clinical #Radiology ... #CXR #Old #RibFracture
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Clinical ... lat decubitus - air ... seen • Chest CT ... Lung #Abscess #pulmonary ... #differential #
There is a hydropneumothorax.
Notice the air-fluid level.
The upper lobe is still attached to the chest wall
Notice the air-fluid ... small airways leading ... to pulmonary cyst ... #Clinical #Radiology ... #CXR #Pneumothorax