12 results
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
Upper lung zone ... bronchiolitis (RB-ILD ... Hypersensitivity pneumonitis ... #ChestCT #Differential ... #Table #Distribution
Nodular pattern
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary TB: random nodules
3. Sarcoidosis: nodules with perilymphatic
: ill defined centrilobular ... #Clinical #Radiology ... #HRCT #CTChest ... Pattern #Comparison #Table ... #RadiologyAssistant
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
idiopathic interstitial pneumonias ... listed in the table ... morphologic findings on HRCT ... IdiopathicInterstitialPneumonia #ILD ... #Findings #RadiologyAssistant
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
Hypersensitivity pneumonitis ... #Clinical #Diagnosis ... NodularPattern #Differential ... #Comparison #Table ... #RadiologyAssistant
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
chronic HP (right) Differential ... Hypersensitivity Pneumonitis ... show very similar HRCT ... #Clinical #Diagnosis ... #RadiologyAssistant
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
polymicrobial infection ... Pneumonitis 3. ... Lung Abscess - Clinical ... Abscess Differential ... Abscess #pulmonary #differential
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
• Domestic and wild ... Pulmonary Disease: Clinical ... Disease: • Clinical ... diagnosis • Microbiologic ... #differential #
Acute interstitial pneumonia (AIP, earlier named Hamman Rich Pneumonitis) is a rare idiopathic lung disease characterized
named Hamman Rich Pneumonitis ... rare idiopathic lung ... #Clinical #Radiology ... AcuteInterstitialPneumonia #ILD ... #RadiologyAssistant
On the left a smoker with RB-ILD with subtle HRCT-findings.
The dominant pattern is ground glass opacification.
Additional
with subtle HRCT-findings ... there is a broad differential ... and additional clinical ... hypersensitivity pneumonitis ... #RadiologyAssistant
Fungal Biomarkers: Beta-D-Glucan and Aspergillus Galactomannan
Beta-D-Glucan:
 • Polysaccharide cell wall component of many fungi
 • Pathogens:
invasive fungal infection ... cut-offs defined in clinical ... surfaces - Infections ... BAL GM does not differentiate ... setting of GVHD) ID