8 results
Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
Algorithm for nodular ... pattern The algorithm ... the nodules are diffuse ... Diagnosis #Radiology #Pulmonary ... #HRCT #CTChest
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
Upper lung zone ... - Aspiration - Pulmonary ... #HRCT #ChestCT ... #Differential #Table ... #Distribution #
Algorithm for Diagnosis of Diffuse Cystic Lung Disease (DCLD)
Round, smooth cysts with normal lung parenchyma in
Algorithm for Diagnosis ... cavities in an upper ... Diffuse distribution ... LCDD, SS Cyst pattern ... Disease #DCLD #pulmonary
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 ... of distribution ... more than one pattern ... Diagnosis #Radiology #Pulmonary
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
resolution of the HRCT ... in ground glass pattern ... be helpfull: - Upper ... Centrilobular distribution ... Diagnosis #Radiology #Pulmonary
Reticular pattern 
1. Lymphangitic carcinomatosis: irregular septal thickening, usually focal or unilateral 50% adenopathy', known carcinoma.
2.
Reticular pattern ... Cardiogenic pulmonary ... incidental finding in HRCT ... and perihilar distribution ... #Comparison #Table
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 ... the dominant HR-pattern ... random) Is there an upper ... Diagnosis #Radiology #Pulmonary ... Interpretation #Algorithm
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
CXR: Peripheral distribution ... consolidation and GG pattern ... , cavities • HRCT ... lymphoma, Diffuse ... Pneumonia #COP #BOOP #pulmonary