26 results
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
: round cysts, evenly ... Centrilobular emphysema ... central dot. - LIP #Clinical ... #Cysts #Differential ... #Comparison #Table
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
- Lung cysts (LAM ... pattern can be readily ... #Pulmonary #CTChest ... #Diagram #Comparison ... TractionBronchiectasis #Cysts
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 ... #Clinical #Radiology ... #Pattern #Comparison
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Centrilobular emphysema ... multiple thick walled cysts ... (LAM): regular cysts ... #Clinical #Radiology ... #Pattern #Comparison
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
them from cysts ... associated pulmonary ... #Clinical #Diagnosis ... #Cavity #Cyst # ... Emphysema #Comparison
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
High-Res Chest CT ... Patterns - Differential ... Attenuation: • Emphysema ... Antitripsyn Def • Cysts ... #radiology
Radiologists use many terms to describe areas of decreased density or lucencies within the lung, like
the lung, like cyst ... a thick wall Cyst ... #CXR #Lucency #Differential ... CavitaryLesion #Cavity #Cyst ... #Lung #Pulmonary
There is a hydropneumothorax.
Notice the air-fluid level (blue arrow).
The upper lobe is still attached to the
There is a lung cyst ... something to do with a cystic ... small airways leading ... to pulmonary cyst ... #Clinical #Radiology
Honeycombing is defined by the presence of small cystic spaces with irregularly thickened walls composed of
Honeycomb cysts ... Subpleural honeycomb cysts ... from paraseptal emphysema ... which subpleural cysts ... #Differential #
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... pattern we are dealing ... When the cysts have ... #Diagnosis #Radiology ... #Pulmonary #CXR