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Here are the most common examples of these four patterns on a chest x-ray (click image
of these four patterns ... Consolidation - Lobar ... consolidation - Diffuse ... - Multiple Masses ... Consolidation #Patterns
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
pattern. 1. ... 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 ... pattern The algorithm ... are visible, the pattern ... are diffuse and ... #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 ... centrilobular nodules ... #Pattern #Comparison ... #Table #RadiologyAssistant
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
diagnosis The table ... to look at the pattern ... more than one pattern ... pneumonia caused ... #Differential #Table
The distribution of nodules shown on HRCT is the most important factor in making an accurate
pattern. ... In most cases small ... Pulmonary #HRCT #NodularPattern ... #Nodular #Pattern ... Perilymphatic #Comparison
Whenever you see an area of increased density within the lung, it must be the result
of these four patterns ... substances resulting in lobar ... , diffuse or multifocal ... ill-defined opacities ... Consolidation #Patterns
Lobar atelectasis or lobar collaps is an important finding on a chest x-ray and has a
Lobar atelectasis ... The most common causes ... produces only mild ... #Collapse #Patterns ... #Comparison #RadiologyAssistant
Algorithm for Diagnosis of Diffuse Cystic Lung Disease (DCLD)
Round, smooth cysts with normal lung parenchyma in
Algorithm for Diagnosis ... cysts along with nodules ... septal thickening & nodules ... LCDD, SS Cyst pattern ... presentations - ILD
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
Unknown • 6-7 cases ... consolidation and GG pattern ... irregular lines, nodular ... Pulmonary lymphoma, Diffuse ... BOOP #pulmonary #ILD