11 results
High Attenuation pattern 
1. Chronic eosinophilic pneumonia with peripheral areas of ground glass opacity.
2. Sarcoid end-stage
with peripheral areas ... consolidation #Clinical #Radiology ... #HRCT #CTChest ... HighAttenuation #Pattern #Comparison ... #Table #RadiologyAssistant
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
low attenuation areas ... #Clinical #Radiology ... #HRCT #CTChest ... Cystic #Pattern #Comparison ... #Table #RadiologyAssistant
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
on the basis of HRCT ... #Diagnosis #Radiology ... LowAttenuation #Differential ... #Diagram #Comparison ... Emphysema #SignetRing #RadiologyAssistant
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
low attenuation areas ... #Clinical #Radiology ... #HRCT #CTChest ... Cystic #Pattern #Comparison ... #Table #RadiologyAssistant
Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
Algorithm for nodular ... #Diagnosis #Radiology ... #Pulmonary #HRCT ... MultipleNodules #Nodules #Differential ... #Algorithm #RadiologyAssistant
This patient presented with acute dyspnoe and a normal chest film (not shown).
The HRCT at presentation
shows lobular areas ... A control HRCT ten ... days later (right ... #Clinical #Radiology ... HypersensitivityPneumonitis #Resolution #RadiologyAssistant
On the left two different patients with similarl HRCT findings.
The left one is a smoker with
with similarl HRCT ... the well defined areas ... #Clinical #Radiology ... CTChest #RBILD #Comparison ... HypersensitivityPneumonitis #ILD #RadiologyAssistant
HRCT findings in OP
- Bilateral peripheral consolidations, sharply demarcated.
- Consolidations may be migratory.
- Lesions may show
HRCT findings in ... OP - Bilateral ... restricted to areas ... #Clinical #Radiology ... Pneumonia #ILD #RadiologyAssistant
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
In the differential ... To differentiate ... fluid or solid material ... Cyst #Emphysema #Comparison ... #RadiologyAssistant
Differential diagnosis of Lymphangitic Carcinomatosis. 
On the left multiple diseases showing septal thickening:
1. Lymphangitic carcinomatosis: irregular
Differential diagnosis ... pulmonary edema: bilateral ... #Clinical #Radiology ... #Comparison #Table ... #RadiologyAssistant