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The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
Diagnosis #Radiology #Pulmonary ... #Differential #Diagram ... Emphysema #SignetRing #RadiologyAssistant
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
bronchiolitis (RB-ILD ... - Aspiration - Pulmonary ... Diagnosis #Radiology #Pulmonary ... #Upper #Lower #RadiologyAssistant
Tree-in-bud
In centrilobular nodules the recognition of 'tree-in-bud' is of value for narrowing the differential diagnosis.
Tree-in-bud describes
Pathophys #Radiology #Pulmonary ... CTChest #TreeInBud #Diagram ... #RadiologyAssistant
Here are the most common examples of these four patterns on a chest x-ray (click image
consolidation - Multifocal ill-defined ... mass - Solitary Pulmonary ... Consolidation #Patterns #RadiologyAssistant
Typical UIP with honeycombing and traction bronchiectasis in a patient with idiopathic pulmonary fibrosis (IPF) #Clinical
with idiopathic pulmonary ... CTChest #UIP #IPF #ILD ... #RadiologyAssistant
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
Hypersensitivity pneumonitis: ill ... bronchiolitis: ill ... Diagnosis #Radiology #Pulmonary ... Comparison #Table #RadiologyAssistant
Subsolid nodules
Most subsolid nodules are transient and the result of infection or hemorrhage.
However, persistent subsolid nodules
size and a solid component ... Diagnosis #Radiology #Pulmonary ... PulmonaryNodule #Followup #RadiologyAssistant
Basic Interpretation
A structured approach to interpretation of HRCT involves the following questions:
What is the dominant HR-pattern:
reticular
nodular
high
Basic Interpretation ... structured approach to interpretation ... Diagnosis #Radiology #Pulmonary ... #Algorithm #ILD ... #RadiologyAssistant
Beginner's Guide to End-Tital Capnography
4 Phases of the Capnoqram
I - Inspiration and expiration Of dead space
II
ventilated alveoli Ill ... Patterns #Waveform #Interpretation ... #pulmonary
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
usually multiple ill-defined ... The old name is ... Diagnosis #Radiology #Pulmonary ... Differential #Table #RadiologyAssistant