14 results
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
- Lung cysts (LAM ... #Pulmonary #CTChest ... LowAttenuation #Differential ... #Diagram #Comparison ... TractionBronchiectasis #Cysts
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
: round cysts, evenly ... Centrilobular emphysema ... #CTChest #Cystic ... #Cysts #Differential ... #Comparison #Table
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
(LAM): uniform cysts ... bizarre shaped cysts ... Centrilobular emphysema ... #HRCT #CTChest ... #Pattern #Comparison
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Centrilobular emphysema ... multiple thick walled cysts ... ; smoking history ... (LAM): regular cysts ... #HRCT #CTChest
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
them from cysts ... Cysts occur without ... associated pulmonary ... #CTChest #Cavity ... #Cyst #Emphysema
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
High-Res Chest CT ... Attenuation: • Emphysema ... Antitripsyn Def • Cysts ... HiRes #HighRes #Chest ... #radiology
Radiologists use many terms to describe areas of decreased density or lucencies within the lung, like
the lung, like cyst ... we describe a chest ... a thick wall Cyst ... CavitaryLesion #Cavity #Cyst ... #Lung #Pulmonary
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
TB: Tree-in-bud appearance ... before the typical cysts ... #Pulmonary #CTChest ... NodularPattern #Differential ... #Comparison #Table
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... On a Chest X-Ray ... detected on a chest ... When the cysts have ... #Pulmonary #CXR
On the left a chest film of a 19 year old patient with Langerhans cell histiocytosis.
The
On the left a chest ... findig on the chest ... caused by multiple cysts ... #Clinical #Radiology ... #CXR #CTChest #