52 results
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
adenopathy and pleural effusion ... Centrilobular emphysema ... Clinical #Radiology #HRCT ... Comparison #Table #RadiologyAssistant
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
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These include: - Emphysema ... on the basis of HRCT ... #Diagnosis #Radiology ... TractionBronchiectasis #Cysts #Emphysema ... #SignetRing #RadiologyAssistant
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
(centrilobular emphysema ... Pulmonary edema #Diagnosis ... Radiology #Pulmonary #HRCT ... #Upper #Lower #RadiologyAssistant
Causes of Pleural Effusions
#Diagnosis #Pulmonary #PleuralEffusions #Differential #Table #Transudative #Exudative
Causes of Pleural Effusions ... #Diagnosis #Pulmonary ... #PleuralEffusions
Light's Criteria

Medical Nugget on Light's Criteria for diagnosis of Exudative Pleural Effusion in adults and children.
Light's Criteria for diagnosis ... Exudative Pleural Effusion ... #Respiratory #PleuralEffusion ... InternalMedicine #Pediatrics #Diagnosis ... #Effusion #LightsCriteria
Pleural Effusions
#Diagnosis #PleuralEffusion #Lights #Criteria #Transudative #Exudative #Cholesterol #Sensitivity #Specificity
Pleural Effusions ... #Diagnosis #PleuralEffusion
Posterior L chest scan…same patient. Explains all! Massive L effusion, empyema. Drained and later discharged from
Massive L effusion ... , empyema. ... Lung #Massive #Empyema ... #PleuralEffusion
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Pleural effusion is seen in:
1. Pulmonary edema
2. Lymphangitic spread of carcinoma - often unilateral
3. Tuberculosis
4. Lymphangiomyomatosis
Pleural effusion ... Asbestosis #Diagnosis ... Pulmonary #Pleural #Effusion ... #PleuralEffusion ... #Differential #RadiologyAssistant
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Centrilobular emphysema ... Clinical #Radiology #HRCT ... Comparison #Table #RadiologyAssistant
Central distribution is seen in sarcoidosis and cardiogenic pulmonary edema.
Peripheral distribution is mainly seen in cryptogenic
#Diagnosis #Radiology ... #Pulmonary #HRCT ... Central #Peripheral #RadiologyAssistant