9 results
Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
pattern The algorithm ... and centrilobular ... is likely centrilobular ... the nodules are diffuse ... HRCT #CTChest #NodularPattern
The distribution of nodules shown on HRCT is the most important factor in making an accurate
or random distribution ... Centrilobular distribution ... Random distribution ... Pulmonary #HRCT #NodularPattern ... Random #Centrilobular
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
with a nodular pattern ... Miliary TB: random ... perilymphatic distribution ... perilymphatic distribution ... #NodularPattern
Lung Nodules - Differential Diagnosis by Distribution
 • Centrilobular: Hypersensitivity Pneumonitis, RB-ILD, Pneumoconiosis, Infectious Bronchiolitis, Vasculitis,
Differential Diagnosis by Distribution ... • Centrilobular ... Pneumonitis, RB-ILD ... Bronchiolitis, Vasculitis, Diffuse ... Carcinomatosis • Random
Nodular pattern
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary TB: random nodules
3. Sarcoidosis: nodules with perilymphatic
Nodular pattern ... Hypersensitivity pneumonitis: ill ... defined centrilobular ... Miliary TB: random ... perilymphatic distribution
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
to look at the pattern ... of distribution ... more than one pattern ... lobar pneumonia caused ... The old name is
Algorithm for Diagnosis of Diffuse Cystic Lung Disease (DCLD)
Round, smooth cysts with normal lung parenchyma in
Algorithm for Diagnosis ... Diffuse distribution ... LCDD, SS Cyst pattern ... presentations - ILD ... DCLD #pulmonary #Algorithm
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 ... secondary lobule (centrilobular ... perilymphatic or random ... Interpretation #Algorithm ... #ILD #RadiologyAssistant
Cryptogenic Organizing Pneumonia (COP)

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