16 results
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
The fourth pattern ... - Lung cysts (LAM ... on the basis of HRCT ... #Diagnosis #Radiology ... LowAttenuation #Differential
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
Centrilobular emphysema ... low attenuation areas ... #Clinical #Radiology ... #HRCT #CTChest ... #Comparison #Table
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Centrilobular emphysema ... low attenuation areas ... #Clinical #Radiology ... #HRCT #CTChest ... #Comparison #Table
High Attenuation pattern 
1. Chronic eosinophilic pneumonia with peripheral areas of ground glass opacity.
2. Sarcoid end-stage
with peripheral areas ... presenting as areas ... with peripheral areas ... #HRCT #CTChest ... #Comparison #Table
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... in interstitial lung ... low attenuation (table ... is interstitial lung ... #Diagnosis #Radiology
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
Upper lung zone ... (centrilobular emphysema ... #Pulmonary #HRCT ... #ChestCT #Differential ... #Table #Distribution
Radiologists use many terms to describe areas of decreased density or lucencies within the lung, like
terms to describe areas ... pneumatocele, emphysema ... is to describe areas ... #CXR #Lucency #Differential ... #Table #CavitaryLesion
Personality Disorders - Differential Diagnosis Algorithm
• Enduring pattern of experience and behaviour that deviates from cultural
Diagnosis Algorithm ... the following areas ... impairment in important areas ... is stable and of ... long duration,
Primary Bone Tumors - Differential Diagnosis Algorithm 

Metastatic - Most common tumour in adults
 - Breast
Bone Tumors - Differential ... Diagnosis Algorithm ... in adults - Breast ... - Thyroid - Lung ... Causes #Oncology #Radiology
Lung abnormalities mostly present as areas of increased density, which can be divided into the following
mostly present as areas ... the following patterns ... Less frequently areas ... are seen as in emphysema ... #CXR #Lung #Patterns