25 results
Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
Algorithm for nodular ... pattern The algorithm ... perilymphatic, random ... HRCT #CTChest #NodularPattern ... #Nodular #Pattern
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
pattern. 1. ... Hypersensitivity pneumonitis: ill ... Miliary TB: random ... bronchiolitis: ill ... #Pattern #NodularPattern
The distribution of nodules shown on HRCT is the most important factor in making an accurate
pattern. ... In most cases small ... Nodules are randomly ... Pulmonary #HRCT #NodularPattern ... #Nodular #Pattern
Nodular pattern
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary TB: random nodules
3. Sarcoidosis: nodules with perilymphatic
Nodular pattern ... Hypersensitivity pneumonitis: ill ... Miliary TB: random ... nodules 3. ... #Pattern #Comparison
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
Organizing Pneumonia (COP ... Unknown • 6-7 cases ... consolidation and GG pattern ... irregular lines, nodular ... BOOP #pulmonary #ILD
Here are the most common examples of these four patterns on a chest x-ray (click image
of these four patterns ... consolidation - Multifocal ill-defined ... opacities - Fine Nodular ... - Multiple Masses ... Consolidation #Patterns
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
High-Res Chest CT Patterns ... Low Attenuation Nodular ... : • Random: Metastases ... Hypersensitivity Pneumonia, COP ... Sarcoidosis, NSIP, COP
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
to look at the pattern ... more than one pattern ... lobar pneumonia caused ... called cryptogenic (COP ... The old name is
Causes of Chronic Dyspnea - Differential Diagnosis Algorithm
Pericardial
 • Effusion
 • Cardiac Tamponade*
 • Constriction
Myocardial
 •
Causes of Chronic ... Differential Diagnosis Algorithm ... • Asthma • COPD ... Interstitium • ILD ... #Causes
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 ... : reticular nodular ... perilymphatic or random ... Interpretation #Algorithm ... #ILD #RadiologyAssistant