13 results
Central distribution is seen in sarcoidosis and cardiogenic pulmonary edema.
Peripheral distribution is mainly seen in cryptogenic
Peripheral distribution ... Radiology #Pulmonary #HRCT ... #ChestCT #Differential ... #Table #Distribution ... #Central #Peripheral
Nodular pattern
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary TB: random nodules
3. Sarcoidosis: nodules with perilymphatic
Nodular pattern ... Hypersensitivity pneumonitis: ill ... perilymphatic distribution ... Clinical #Radiology #HRCT ... #Comparison #Table
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
bronchiolitis (RB-ILD ... Radiology #Pulmonary #HRCT ... #ChestCT #Differential ... #Table #Distribution
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 ... Radiology #Pulmonary #HRCT ... MultipleNodules #Nodules #Differential
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
The table summarizes ... to look at the pattern ... of distribution ... perihilar (batwing) or peripheral ... more than one pattern
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
with a nodular pattern ... perilymphatic distribution ... perilymphatic distribution ... NodularPattern #Differential ... #Comparison #Table
Maculopapular Rashes - THE ALGORITHMIC APPROACH 

The term maculopapule is a portmanteau, a combination
of macule and
Maculopapular Rashes - THE ALGORITHMIC ... macule and papule (Table ... based on the distribution ... Maculopapular #Rash #Algorithm ... #Differential
Lymphomas and Lymphoproliferative Disorders - Differential Diagnosis Algorithm
Hodgkin Lymphoma ~40% - Characteristic For Reed-Sternberg (RS) Cells
Diagnosis Algorithm ... - Bimodal Age Distribution ... involvement, irregular pattern ... Lymphoproliferative #Disorders #Classification ... #algorithm
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 ... central versus peripheral ... Interpretation #Algorithm ... #ILD #RadiologyAssistant
Cryptogenic Organizing Pneumonia (COP)

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