18 results
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
- Sarcoidosis Lower ... edema #Diagnosis #Radiology ... #Pulmonary #HRCT ... #Differential #Table ... #RadiologyAssistant
Central distribution is seen in sarcoidosis and cardiogenic pulmonary edema.
Peripheral distribution is mainly seen in cryptogenic
and cardiogenic pulmonary ... #Diagnosis #Radiology ... #Pulmonary #HRCT ... #Differential #Table ... Central #Peripheral #RadiologyAssistant
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
On HRCT there are ... low attenuation (table ... #Diagnosis #Radiology ... #Pulmonary #CXR ... #Differential #RadiologyAssistant
Perilymphatic distribution
Perilymphatic nodules are most commonly seen in sarcoidosis.
They also occur in silicosis, coal-worker's pneumoconiosis and
thickening in the reticular ... #Diagnosis #Radiology ... #Pulmonary #HRCT ... #Differential #RadiologyAssistant
Reticular pattern 
1. Lymphangitic carcinomatosis: irregular septal thickening, usually focal or unilateral 50% adenopathy', known carcinoma.
2.
Reticular pattern ... Cardiogenic pulmonary ... #Clinical #Radiology ... #Comparison #Table ... #RadiologyAssistant
Basic Interpretation
A structured approach to interpretation of HRCT involves the following questions:
What is the dominant HR-pattern:
reticular
nodular
high
dominant HR-pattern: reticular ... an upper versus lower ... bronchiectasis) #Diagnosis #Radiology ... #Pulmonary #HRCT ... Algorithm #ILD #RadiologyAssistant
UIP
UIP is a histologic pattern of pulmonary fibrosis.
On a chest X-ray UIP manifests as a reticular
histologic pattern of pulmonary ... A HRCT is needed ... HRCT demonstrated ... #Clinical #Radiology ... #Honeycombing #RadiologyAssistant
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
resolution of the HRCT ... bronchiolitis, PCP. - Lower ... bronchiolitis #Diagnosis #Radiology ... #Pulmonary #CTChest ... #Differential #RadiologyAssistant
On the left a patient with DIP.
The HRCT shows diffuse areas of ground-glass density in the
The HRCT shows diffuse ... density in the lower ... Reticular abnormalities ... smoking #Clinical #Radiology ... DesquamativeInterstitialPneumonia #ILD #RadiologyAssistant
Septal thickening
Thickening of the lung interstitium by fluid, fibrous tissue, or infiltration by cells results in
in a pattern of reticular ... differential diagnosis (Table ... #Diagnosis #Radiology ... #Pulmonary #HRCT ... #Differential #RadiologyAssistant