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The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
Emphysema - Lung cysts ... LIP, Langerhans cell ... histiocytosis) ... on the basis of HRCT ... TractionBronchiectasis #Cysts
HRCT findings in Langerhans cell histiocytosis:
Early stage:
- Small irregular or stellate nodules in centrilobular location.
Late stage
HRCT findings in ... Cystic airspaces Cysts ... There are no cysts ... #Clinical #Radiology ... #RadiologyAssistant
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
) - Langerhans cell ... histiocytosis - ... edema #Diagnosis #Radiology ... #Pulmonary #HRCT ... #ChestCT #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 ... or Langerhans cell ... histiocytosis.
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
When the cysts have ... in Langerhans cell ... histiocytosis or ... #Pulmonary #CXR ... #RadiologyAssistant
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
Langerhans cell ... histiocytosis: early ... before the typical cysts ... #Pulmonary #CTChest ... NodularPattern #Differential
On the left a chest film of a 19 year old patient with Langerhans cell histiocytosis.
The
On the left a chest ... caused by multiple cysts ... #Clinical #Radiology ... #CTChest #LCH #LangerhansCellHistiocytosis ... #Cystic #RadiologyAssistant
Cystic lung disease
Lung cysts are defined as radiolucent areas with a wall thickness of less than
lung disease Lung cysts ... cell carcinoma ... #Diagnosis #Radiology ... #Pulmonary #Cystic ... #RadiologyAssistant
Common Dermatological Conditions - Distribution and Morphology
 • Acne vulgaris - Face, upper back, chest -
papules, pustules, cysts ... scale • Basal cell ... • Squamous cell ... ; pruritis #dermatology ... #rash #differential