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On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
diseases with a nodular ... #Clinical #Diagnosis ... #Radiology #Pulmonary ... #CTChest #Nodular ... #Differential #Comparison
Tree-in-bud
In centrilobular nodules the recognition of 'tree-in-bud' is of value for narrowing the differential diagnosis.
Tree-in-bud describes
centrilobular nodules ... the differential diagnosis ... identified in the lung periphery ... #Radiology #Pulmonary ... #CTChest #TreeInBud
The distribution of nodules shown on HRCT is the most important factor in making an accurate
making an accurate diagnosis ... The most peripheral ... #Diagnosis #Radiology ... #Pulmonary #HRCT ... Perilymphatic #Comparison
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
polyangiitis), MPA (microscopic ... nodules, asthma ... vasculitis, ulcers, nodules ... sparing of the lung periphery ... FINDINGS: • U/A: microscopic
Bronchus Sign on Chest CT
 • Airway leading directly to a peripheral lung nodule or mass
Bronchus Sign on Chest ... directly to a peripheral ... lung nodule or ... Sign #CT #Lung #Pulmonary ... #diagnosis #radiology
Based on the images alone, it is usually not possible to determine the cause of the
between these chest ... Infarction - peripheral ... in fact this is nodular ... #Clinical #Diagnosis ... #Radiology #CXR
Hampton hump is a radiologic sign which consists of a shallow wedge-shaped opacity in the periphery
opacity in the periphery ... may aid in the diagnosis ... confirmed with chest ... EmergencyMedicine #CriticalCare ... #Radiology #Cardiology
Galaxy Sign on Chest CT
 • Coalescent granuloma with a central dense mass and tiny peripheral
Galaxy Sign on Chest ... mass and tiny peripheral ... satellite nodules ... Sign #CT #Lung #Pulmonary ... #diagnosis #radiology
Basic Interpretation
A structured approach to interpretation of HRCT involves the following questions:
What is the dominant HR-pattern:
reticular
nodular
high
HR-pattern: reticular nodular ... central versus peripheral ... bronchiectasis) #Diagnosis ... #Radiology #Pulmonary ... #HRCT #CTChest