8 results
High Attenuation pattern (2) 
1. Non specific interstitial pneumonitis (NSIP): ground glass with traction bronchiectasis, no
High Attenuation pattern ... perihilar and in upper ... Clinical #Radiology #HRCT ... HighAttenuation #Pattern ... #Comparison #Table
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
Upper lung zone ... - Sarcoidosis Lower ... Pulmonary edema #Diagnosis ... Radiology #Pulmonary #HRCT ... #Differential #Table
High Attenuation pattern 
1. Chronic eosinophilic pneumonia with peripheral areas of ground glass opacity.
2. Sarcoid end-stage
High Attenuation pattern ... massive fibrosis in upper ... Clinical #Radiology #HRCT ... HighAttenuation #Pattern ... #Comparison #Table
Upper Versus Lower Motor Neuron Findings

Denervation near the target muscle fibers (lower motor neuron disease) results
Upper Versus Lower ... #Upper #Lower #MotorNeuron ... #Comparison #Versus ... #Findings #Diagnosis ... #Table #Neurology
Basic Interpretation
A structured approach to interpretation of HRCT involves the following questions:
What is the dominant HR-pattern:
reticular
nodular
high
the dominant HR-pattern ... random) Is there an upper ... versus lower zone ... bronchiectasis) #Diagnosis ... Interpretation #Algorithm
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
resolution of the HRCT ... in ground glass pattern ... be helpfull: - Upper ... bronchiolitis, PCP. - Lower ... bronchiolitis #Diagnosis
Causes of Dysuria - Differential Diagnosis Algorithm
Pyuria - Leukocytes on Dipstick/Microscopy
 - Bacteriuria & Hematuria -
- Differential Diagnosis ... Algorithm Pyuria ... • Upper ... Casts • Lower ... Neoplasm - Non-Pathogenic
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
) Differential diagnosis ... seen in smokers, upper ... show very similar HRCT ... UIP has a strong lower ... #CTChest #UIP #Comparison