8 results
Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
Algorithm for nodular ... along the central ... #Diagnosis #Radiology ... #Pulmonary #HRCT ... Differential #Algorithm #RadiologyAssistant
Central distribution is seen in sarcoidosis and cardiogenic pulmonary edema.
Peripheral distribution is mainly seen in cryptogenic
Central distribution ... #Diagnosis #Radiology ... #Pulmonary #HRCT ... #Differential #Table ... #Peripheral #RadiologyAssistant
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Differential diagnosis ... Nodular LCH: - Sarcoidosis ... emphysema: no walls, central ... Differential #Comparison #Table ... #RadiologyAssistant
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... patterns: reticular, nodular ... low attenuation (table ... #Diagnosis #Radiology ... #Differential #RadiologyAssistant
Basic Interpretation
A structured approach to interpretation of HRCT involves the following questions:
What is the dominant HR-pattern:
reticular
nodular
high
interpretation of HRCT ... HR-pattern: reticular nodular ... lower zone or a central ... bronchiectasis) #Diagnosis ... Algorithm #ILD #RadiologyAssistant
Risk factors
Defining high- or low-risk is currently more difficult than it was in the old guideline.
Previously
characteristics alone (See Table ... #Diagnosis #Epidemiology ... Radiology #Pulmonary #Fleischner ... PulmonaryNodule #Nodule ... #RadiologyAssistant
Fleischner Society recommendations for follow-up of nodules
Previous chest radiographs should be reviewed to determine if the
Fleischner Society ... for follow-up of nodules ... lesion has been stable ... definitive tissue diagnosis ... #RadiologyAssistant
Septal thickening
Thickening of the lung interstitium by fluid, fibrous tissue, or infiltration by cells results in
(Table). ... Nodular or irregular ... #Diagnosis #Radiology ... #Pulmonary #HRCT ... #Differential #RadiologyAssistant