27 results
Nodular pattern
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary TB: random nodules
3. Sarcoidosis: nodules with perilymphatic
: centrilobular ... #Clinical #Radiology ... #HRCT #CTChest ... Nodular #Pattern #Comparison ... #Table #RadiologyAssistant
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Centrilobular emphysema ... #Clinical #Radiology ... #HRCT #CTChest ... Cystic #Pattern #Comparison ... #Table #RadiologyAssistant
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
related diseases (centrilobular ... emphysema - Respiratory ... Hypersensitivity pneumonitis ... edema #Diagnosis #Radiology ... #Upper #Lower #RadiologyAssistant
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
. - Centrilobular ... emphysema: no walls ... #CTChest #Cystic ... #Differential #Comparison ... #Table #RadiologyAssistant
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
Centrilobular emphysema ... #Clinical #Radiology ... #HRCT #CTChest ... Cystic #Pattern #Comparison ... #Table #RadiologyAssistant
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
Hypersensitivity pneumonitis ... Hypersensitivity pneumonitis ... #Pulmonary #CTChest ... #Differential #Comparison ... #Table #RadiologyAssistant
Ill defined centrilobular nodules of ground glass density in a patient with hypersensitivity pneumonitis #Clinical #Radiology
Ill defined centrilobular ... #Clinical #Radiology ... #CTChest #Hypersenstitivity ... #Centrilobular ... #RadiologyAssistant
Centrilobular emphysema due to smoking. The periphery of the lung is spared (blue arrows). Centrilobular artery
Centrilobular emphysema ... #Clinical #Radiology ... #CTChest #Centrilobular ... #Emphysema #CentrilobularEmphysema ... #RadiologyAssistant
Sometimes the centrilobular opacities are more nodular in appearance as in this case. #Clinical #Radiology #CTChest
Sometimes the centrilobular ... #Clinical #Radiology ... #CTChest #Hypersensitivity ... #Pneumonitis #HypersensitivityPneumonitis ... #RadiologyAssistant
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
These include: - Emphysema ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... Differential #Diagram #Comparison ... #SignetRing #RadiologyAssistant