15 results
Central distribution is seen in sarcoidosis and cardiogenic pulmonary edema.
Peripheral distribution is mainly seen in cryptogenic
pneumonia (COP), chronic ... pneumonia and UIP ... #HRCT #ChestCT ... #Differential #Table ... Central #Peripheral #RadiologyAssistant
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
Upper lung zone ... is seen in: - UIP ... #HRCT #ChestCT ... #Differential #Table ... #Upper #Lower #RadiologyAssistant
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
cysts (LAM, LIP ... on the basis of HRCT ... Diagnosis #Radiology #Pulmonary ... Differential #Diagram #Comparison ... Emphysema #SignetRing #RadiologyAssistant
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
in interstitial lung ... low attenuation (table ... in many cases UIP ... Diagnosis #Radiology #Pulmonary ... #Differential #RadiologyAssistant
UIP
UIP is a histologic pattern of pulmonary fibrosis.
On a chest X-ray UIP manifests as a reticular
pattern of pulmonary ... On a chest X-ray ... A HRCT is needed ... attributed to chronic ... #Honeycombing #RadiologyAssistant
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
listed in the table ... morphologic findings on HRCT ... findings of NSIP, UIP ... Diagnosis #Radiology #Pulmonary ... ILD #Findings #RadiologyAssistant
Pulmonary Hypertension Groups - WHO Classification
Group I - Vascular remodeling of pulmonary arteries
 • Idiopathic, HIV,
disease causing back up ... lung disease causing ... Classification I - No limitation ... dyspnea, fatigue, or chest ... dyspnea, fatigue, chest
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
UIP with honeycombing ... similar HRCT findings ... throughout the whole lung ... #Comparison #Chronic ... Fibrosis #Mimic #ILD #RadiologyAssistant
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Loss of weight • Chest ... in the adjacent lung ... of the affected lung ... Diagnosis: • HRCT ... mycobacteria Treatment
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
pneumonia • Chronic ... disease: Pleuritic chest ... level seen • Chest ... until the chest ... #Abscess #pulmonary