11 results
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
(LAM, LIP, Langerhans ... can be readily ... #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 pattern ... woman of child-bearing ... #Clinical #Radiology ... #HRCT #CTChest ... #Comparison #Table
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Low Attenuation pattern ... woman of child-bearing ... #Clinical #Radiology ... #HRCT #CTChest ... #Comparison #Table
Usual Interstitial Pneumonia (UIP) pattern on Chest CT
75 M with progressive dyspnea. Typical usual interstitial pneumonia
pattern on Chest ... pattern: - Subpleural ... Idiopathic pulmonary fibrosis ... #IPF #ChestCT #radiology ... #pulmonary #clinical
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
women in the child-bearing ... central dot. - LIP ... #Clinical #Diagnosis ... #Radiology #CTChest ... #Differential #Comparison
On the left a patient with GGO as dominant pattern.
In addition there is traction bronchiectasis indicating
a patient with GGO ... As in UIP (usual ... #Clinical #Radiology ... #CTChest #NSIP ... #GroundGlass #GGO
HRCT findings in UIP
Honeycombing consisting of multilayered thick-walled cysts.
Architectural distortion with traction bronchiectasis due to fibrosis.
Predominance
multilayered thick-walled cysts ... bronchiectasis due to fibrosis ... lymphadenopathy #Clinical ... #Radiology #CTChest ... #Usual #Interstitial
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
can heal and end up ... with end-stage fibrosis ... #Clinical #Diagnosis ... #Radiology #CTChest ... Emphysema #Comparison
On the left a chest film of a patient with UIP due to IPF.
The findings on
volume loss and fibrotic ... thick walls of the cysts ... #Clinical #Radiology ... #CXR #CTChest # ... #Usual #Interstitial
Honeycombing represents the second reticular pattern recognizable on HRCT.
Because of the cystic appearance, honeycombing is also
second reticular pattern ... composed of dense fibrous ... typical feature of usual ... #Clinical #Radiology ... #CTChest #Honeycombing