14 results
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
Upper lung zone ... Radiology #Pulmonary #HRCT ... #Differential #Table ... #Distribution # ... Upper #Lower #RadiologyAssistant
Nodular pattern
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary TB: random nodules
3. Sarcoidosis: nodules with perilymphatic
perilymphatic distribution ... Clinical #Radiology #HRCT ... Nodular #Pattern #Comparison ... #Table #RadiologyAssistant
Nodular pattern(2)
1. Sarcoidosis: nodules with perilymphatic distribution, along fissures, adenopathy.
2. TB: Tree-in-bud appearance in a patient
perilymphatic distribution ... Clinical #Radiology #HRCT ... Nodular #Pattern #Comparison ... #Table #RadiologyAssistant
Upper Versus Lower Motor Neuron Findings

Denervation near the target muscle fibers (lower motor neuron disease) results
Upper Versus Lower ... muscle fibers (lower ... #Upper #Lower #MotorNeuron ... #Comparison #Versus ... Findings #Diagnosis #Table
High Attenuation pattern 
1. Chronic eosinophilic pneumonia with peripheral areas of ground glass opacity.
2. Sarcoid end-stage
massive fibrosis in upper ... Clinical #Radiology #HRCT ... HighAttenuation #Pattern #Comparison ... #Table #RadiologyAssistant
High Attenuation pattern (2) 
1. Non specific interstitial pneumonitis (NSIP): ground glass with traction bronchiectasis, no
perihilar and in upper ... Clinical #Radiology #HRCT ... HighAttenuation #Pattern #Comparison ... #Table #RadiologyAssistant
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
resolution of the HRCT ... be helpfull: - Upper ... bronchiolitis, PCP. - Lower ... Centrilobular distribution
Stage I - Redistribution
In a normal chest film with the patient standing erect, the pulmonary vessels
supplying the upper ... flow from the lower ... to the upper lobes ... In these cases comparison ... Views of the upper
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
seen in smokers, upper ... show very similar HRCT ... UIP has a strong lower ... zone distribution ... #CTChest #UIP #Comparison
Lower GI Bleed - Management Algorithm

Suspected lower GI bleeding (LGIB):
 • Hematochezia 
 • Melena +
Lower GI Bleed - ... Management Algorithm ... Unstable (Rule out upper ... GI bleed) vs Stable ... GIBleed #management #Algorithm