9 results
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
disease comes from HRCT ... On HRCT there are ... reticular, nodular ... low attenuation (table ... is reticular.
High Attenuation pattern (2) 
1. Non specific interstitial pneumonitis (NSIP): ground glass with traction bronchiectasis, no
High Attenuation pattern ... Non specific interstitial ... COP. ... Clinical #Radiology #HRCT ... #Comparison #Table
Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
Algorithm for nodular ... pattern The algorithm ... bronchovascular interstitium ... Radiology #Pulmonary #HRCT ... #CTChest #NodularPattern
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
BOOP • Type of interstitial ... cough, dyspnea, fever ... consolidation and GG pattern ... , cavities • HRCT ... Idiopathic interstitial
Reticular pattern 
1. Lymphangitic carcinomatosis: irregular septal thickening, usually focal or unilateral 50% adenopathy', known carcinoma.
2.
Reticular pattern ... incidental finding in HRCT ... peribronchovascular interstitium ... #CTChest #Reticular ... #Table #RadiologyAssistant
Septal thickening
Thickening of the lung interstitium by fluid, fibrous tissue, or infiltration by cells results in
cells results in a pattern ... of reticular opacities ... differential diagnosis (Table ... Radiology #Pulmonary #HRCT ... #CTChest #Reticular
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
listed in the table ... have specific patterns ... morphologic findings on HRCT ... realise, that these patterns ... of NSIP, UIP, OP
Amiodarone Induced Lung Toxicity Summary

Who?
• 5% of patients
• Dose ≥ 400 mg per day

How?  Possible
Fever 4. ... glass opacities • Reticular ... ground glass or reticular ... confirmatory findings on HRCT ... LDH • ↑ ESR, CRP
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis: • Fevers ... Elevated ESR and CRP ... purpura, livedo reticularis ... white and gray matter ... inflammatory lesions - interstitial