13 results
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
in interstitial lung ... reticular, nodular ... low attenuation (table ... #Diagnosis #Radiology ... #Pulmonary #CXR
The distribution of nodules shown on HRCT is the most important factor in making an accurate
shown on HRCT is ... pattern. ... In most cases small ... structures of the lung ... #Pulmonary #HRCT
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
indicates unknown cause ... listed in the table ... morphologic findings on HRCT ... #Diagnosis #Radiology ... #Pulmonary #CTChest
UIP
UIP is a histologic pattern of pulmonary fibrosis.
On a chest X-ray UIP manifests as a reticular
of pulmonary fibrosis ... On a chest X-ray ... A HRCT is needed ... at the lung bases ... #Clinical #Radiology
Tree-in-Bud Sign on Chest CT
 • Multiple centrilobular nodules arranged in a linear branching pattern.
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CT • Multiple ... centrilobular nodules ... linear branching pattern ... #Lung #Pulmonary ... #diagnosis #radiology
Miliary Pattern - Chest Radiology
 • Miliary opacities are scattered, small (1 -4 mm) nodules
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- Chest Radiology ... small (1 -4 mm) nodules ... throughout the lungs ... #Chest #Radiology ... CXR #clinical #CT
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
nodules, asthma ... Goodpasture's cause ... sparing of the lung ... CT ... • IF staining patterns
Septal thickening
Thickening of the lung interstitium by fluid, fibrous tissue, or infiltration by cells results in
Thickening of the lung ... cells results in a pattern ... differential diagnosis (Table ... Nodular or irregular ... #Pulmonary #HRCT
Progressive Massive Fibrosis aka Complicated Silicosis.
Silicosis is a fibrotic lung disease caused by inhalation of crystalline
is a fibrotic lung ... disease caused ... coalescence of the nodules ... typical eggshell pattern ... #labeled #pulmonary
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
centrilobular nodules ... in the adjacent lung ... of the affected lung ... Diagnosis: • HRCT ... CT) • Broncho-arterial