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Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
On a Chest X-Ray ... The cystic pattern ... When the cysts have ... #Diagnosis #Radiology ... #Pulmonary #CXR
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
Emphysema - Lung cysts ... diseases with a ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... TractionBronchiectasis #Cysts
Algorithm for Diagnosis of Diffuse Cystic Lung Disease (DCLD)
Round, smooth cysts with normal lung parenchyma in
Round, smooth cysts ... - PLCH Round cysts ... pattern not consistent ... Disease #DCLD #pulmonary ... #differential
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
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
diseases with a ... before the typical cysts ... Clinical #Diagnosis #Radiology ... #Pulmonary #CTChest ... NodularPattern #Differential
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
Patterns - Differential ... Antitripsyn Def • Cysts ... #CT #Patterns # ... Differential #Diagnosis ... #pulmonary #radiology
Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
pattern The algorithm ... #Diagnosis #Radiology ... #Pulmonary #HRCT ... #CTChest #NodularPattern ... MultipleNodules #Nodules #Differential
Radiologists use many terms to describe areas of decreased density or lucencies within the lung, like
the lung, like cyst ... thick wall Cyst ... CavitaryLesion #Cavity #Cyst ... #Lung #Pulmonary ... #Diagnosis #Radiology
On the left a chest film of a 19 year old patient with Langerhans cell histiocytosis.
The
On the left a chest ... patern and that's ... caused by multiple cysts ... #Clinical #Radiology ... #CXR #CTChest #
Basic Interpretation
A structured approach to interpretation of HRCT involves the following questions:
What is the dominant HR-pattern:
reticular
nodular
high
the dominant HR-pattern ... attenuation (emphysema, cystic ... #Pulmonary #HRCT ... #CTChest #Interpretation ... #Algorithm #ILD