8 results
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
; smoking history ... #HRCT #CTChest ... #LowAttenuation ... #Cystic #Pattern ... #Comparison #Table
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
Centrilobular emphysema ... #HRCT #CTChest ... #LowAttenuation ... #Cystic #Pattern ... #Comparison #Table
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
on the basis of HRCT ... #Pulmonary #CTChest ... #LowAttenuation ... #Differential #Diagram ... #Comparison #Honeycombing
Nodular pattern
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary TB: random nodules
3. Sarcoidosis: nodules with perilymphatic
Nodular pattern ... : nodules with perilymphatic ... #Clinical #Radiology ... #HRCT #CTChest ... #Comparison #Table
The distribution of nodules shown on HRCT is the most important factor in making an accurate
nodules shown on HRCT ... in the nodular pattern ... #Diagnosis #Radiology ... #Pulmonary #HRCT ... #Comparison #Diagram
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
with a nodular pattern ... before the typical cysts ... #Pulmonary #CTChest ... #Differential #Comparison ... #Table #RadiologyAssistant
Nodular pattern(2)
1. Sarcoidosis: nodules with perilymphatic distribution, along fissures, adenopathy.
2. TB: Tree-in-bud appearance in a patient
: nodules with perilymphatic ... before the typical cysts ... #Clinical #Radiology ... #HRCT #CTChest ... #Comparison #Table
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 ... secondary lobule (centrilobular ... , perilymphatic ... #Pulmonary #HRCT