71 results
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
decreased lung attenuation ... Emphysema - Lung cysts ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... Differential #Diagram #Comparison
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
Low Attenuation ... (LAM): uniform cysts ... #Clinical #Radiology ... #HRCT #CTChest ... Cystic #Pattern #Comparison
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Low Attenuation ... emphysema: low attenuation ... #Clinical #Radiology ... #HRCT #CTChest ... Cystic #Pattern #Comparison
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
High-Res Chest CT ... - Differential Diagnosis ... Antitripsyn Def • Cysts ... Differential #Diagnosis ... #pulmonary #radiology
Mosaic Attenuation on Chest CT
 • Variable attenuation seen on a chest CT in a lobular
Mosaic Attenuation ... on Chest CT • ... CT in a lobular ... #diagnosis #radiology ... #clinical
On the left three different patients with lung cysts.
From left to right: Lymphangiomyomatosis, LIP and Langerhans
patients with lung cysts ... #Clinical #Diagnosis ... #Radiology #CTChest ... #Cystic #Comparison
Using Stroke Windows for Detecting Ischemia on Head CT
When evaluating a CT head for possible stroke,
Ischemia on Head CT ... When evaluating a CT ... Ischemia #HeadCT #Radiology ... #CTHead #diagnosis ... #comparison
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Differential diagnosis ... central dot. - LIP #Clinical ... #Diagnosis #Radiology ... #CTChest #Cystic ... #Comparison #Table
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
the differential diagnosis ... #Clinical #Diagnosis ... #Radiology #CTChest ... #Cavity #Cyst # ... Emphysema #Comparison
Halo Sign on Chest CT
 • SPN or mass surrounded by a circumferential GGO
 • DDx:
Halo Sign on Chest ... CT • SPN or mass ... #Halo #Sign #CT ... Lung #Pulmonary #diagnosis ... #radiology #clinical