Dr. Gerald Diaz @GeraldMD
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Board Certified Internal Medicine Hospitalist, GrepMed Editor in Chief πŸ‡΅πŸ‡­ πŸ‡ΊπŸ‡Έ - Sign up for an account to like, bookmark and upload images to contribute to our community platform. Follow us on IG: https://www.instagram.com/grepmed/ | Twitter: https://twitter.com/grepmeded/
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On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
defined centrilobular ... bronchiolitis: ill ... #Pattern #NodularPattern ... Differential #Comparison #Table ... #RadiologyAssistant
Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
Algorithm for nodular ... perilymphatic, random and centrilobular ... are diffuse and ... HRCT #CTChest #NodularPattern ... #RadiologyAssistant
Nodular pattern
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary TB: random nodules
3. Sarcoidosis: nodules with perilymphatic
Hypersensitivity pneumonitis: ill ... defined centrilobular ... Hypersensitivity pneumonitis: centrilobular ... Pattern #Comparison #Table ... #RadiologyAssistant
The distribution of nodules shown on HRCT is the most important factor in making an accurate
In most cases small ... perilymphatic, centrilobular ... , centrilobular ... Pulmonary #HRCT #NodularPattern ... Comparison #Diagram #RadiologyAssistant
Here are the most common examples of these four patterns on a chest x-ray (click image
consolidation - Diffuse ... consolidation - Multifocal ill-defined ... opacities - Fine Nodular ... - Multiple Masses ... Consolidation #Patterns #RadiologyAssistant
Subacute hypersensitivity pneumonitis
The key findings in the subacute hypersensitivity pneumonitis are:
ill-defined centrilobular nodules of ground-glass opacity
centrilobular nodules ... opacity (80% of cases ... There are ill-defined ... centrilobular nodules ... #RadiologyAssistant
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
diagnosis The table ... lobar pneumonia caused ... The old name is ... #Differential #Table ... #RadiologyAssistant
Basic Interpretation
A structured approach to interpretation of HRCT involves the following questions:
What is the dominant HR-pattern:
reticular
nodular
high
HR-pattern: reticular nodular ... secondary lobule (centrilobular ... Interpretation #Algorithm ... #ILD #RadiologyAssistant