14 results
High Attenuation pattern 
1. Chronic eosinophilic pneumonia with peripheral areas of ground glass opacity.
2. Sarcoid end-stage
High Attenuation ... with peripheral areas ... presenting as areas ... #HRCT #CTChest ... Pattern #Comparison #Table
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
Low Attenuation ... areas without walls ... #Clinical #Radiology ... #HRCT #CTChest ... Pattern #Comparison #Table
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Low Attenuation ... areas without walls ... #Clinical #Radiology ... #HRCT #CTChest ... Pattern #Comparison #Table
Causes of Polycythemia (Erythrocytosis) - Differential Diagnosis Algorithm
Relative - Normal RBC Mass / Decreased Plasma Volume
Erythrocytosis) - Differential ... Diagnosis Algorithm ... RBC Mass / Decreased ... of Breath, Cough ... #Diagnosis #Algorithm
Mosaic attenuation
The term 'mosaic attenuation' is used to describe density differences between affected and non-affected lung
non-affected lung areas ... There are patchy areas ... which part is abnormal ... #Pulmonary #CTChest ... #Differential #
Head Cheese Sign on Chest CT
 • Juxtaposition of distinct radiographic areas of low, normal and
Cheese Sign on Chest ... distinct radiographic areas ... of low, normal ... and high attenuation ... Pulmonary #diagnosis #radiology
Personality Disorders - Differential Diagnosis Algorithm
• Enduring pattern of experience and behaviour that deviates from cultural
Diagnosis Algorithm ... the following areas ... impairment in important areas ... The pattern is stable ... • Histrionic - attention-seeking
Radiologists use many terms to describe areas of decreased density or lucencies within the lung, like
terms to describe areas ... we describe a chest ... is to describe areas ... #CXR #Lucency #Differential ... #Table #CavitaryLesion
Differential diagnosis of Lymphangitic Carcinomatosis. 
On the left multiple diseases showing septal thickening:
1. Lymphangitic carcinomatosis: irregular
Differential diagnosis ... with ground glass attenuation ... #Clinical #Radiology ... #Pulmonary #CTChest ... #Comparison #Table
This patient presented with acute dyspnoe and a normal chest film (not shown).
The HRCT at presentation
dyspnoe and a normal ... shows lobular areas ... of ground glass attenuation ... #Clinical #Radiology ... #CTChest #Hypersensitivity