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Here are the most common examples of these four patterns on a chest x-ray (click image
patterns on a chest ... - Multifocal ill-defined ... Masses Atelectasis #Diagnosis ... #Clinical #Radiology ... #Patterns #RadiologyAssistant
Septic emboli
Septic emboli usually present as multiple ill-defined nodules.
In about 50% cavitation is seen.
CT demonstrates more
can suggest the diagnosis ... which are probably consolidations ... #Clinical #Radiology ... #SepticEmboli #Cavity ... #RadiologyAssistant
HRCT findings in OP
- Bilateral peripheral consolidations, sharply demarcated.
- Consolidations may be migratory.
- Lesions may show
carcinoma, the diagnosis ... #Clinical #Radiology ... #CTChest #COP # ... Organizing #Pneumonia #ILD ... #RadiologyAssistant
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
or an area of consolidation ... #Radiology #CTChest ... #Cavity #Cyst # ... Emphysema #Comparison ... #RadiologyAssistant
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
#Clinical #Diagnosis ... #Radiology #Pulmonary ... #CTChest #Nodular ... #Differential #Comparison ... #Table #RadiologyAssistant
Cavitation - Pneumonia
In virulent pyogenic infections an abscess may form within the consolidated lung as a
coughed up, a cavity ... resolution of the consolidation ... #Clinical #Radiology ... #CXR #CTChest # ... CavitaryPneumonia #RadiologyAssistant
Basic Interpretation
A structured approach to interpretation of HRCT involves the following questions:
What is the dominant HR-pattern:
reticular
nodular
high
(ground-glass, consolidation ... bronchiectasis) #Diagnosis ... #Radiology #Pulmonary ... #HRCT #CTChest ... #RadiologyAssistant
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
) Differential diagnosis ... Subacute stage: - RB-ILD ... #Radiology #CTChest ... #UIP #Comparison ... #RadiologyAssistant
Acute interstitial pneumonia (AIP, earlier named Hamman Rich Pneumonitis) is a rare idiopathic lung disease characterized
suggestive of the diagnosis ... #Clinical #Radiology ... #CTChest #AIP # ... AcuteInterstitialPneumonia #ILD ... #RadiologyAssistant
Lobar atelectasis or lobar collaps is an important finding on a chest x-ray and has a
important finding on a chest ... produces only mild ... #Diagnosis #Radiology ... Collapse #Patterns #Comparison ... #RadiologyAssistant