86 results
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 #RadiologyAssistant
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
These include: - Emphysema ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... TractionBronchiectasis #Cysts #Emphysema ... #SignetRing #RadiologyAssistant
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 #RadiologyAssistant
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Differential diagnosis ... Centrilobular emphysema ... central dot. - LIP #Clinical ... #CTChest #Cystic ... Comparison #Table #RadiologyAssistant
High Attenuation pattern 
1. Chronic eosinophilic pneumonia with peripheral areas of ground glass opacity.
2. Sarcoid end-stage
with peripheral areas ... presenting as areas ... consolidation #Clinical ... Radiology #HRCT #CTChest ... Comparison #Table #RadiologyAssistant
Palpable Skin Crepitus on Physical Exam

Notice these air bubbles under the skin. An 86-year-old woman with
insertion of a chest ... neck (shown in video ... the head, neck, chest ... #PhysicalExam #Clinical ... #Video
Emphysema, when it is severe, can mimick Langerhans cell histiosytosis.
When it extends beyond the centrilobular area
Emphysema, when ... LCH, but also areas ... #Clinical #Radiology ... #CTChest #Emphysema ... #RadiologyAssistant
Flail Chest on Physical Exam
Flail chest after 3 or more ribs are broken in 2 areas
Flail Chest on Physical ... Exam Flail chest ... are broken in 2 areas ... #respiratory #clinical ... #video #Pulmonary
Empyema Necessitans (EN) on Chest POCUS

Pulmonary teaching case: you are called to the bedside of a
Empyema Necessitans ... POCUS - What’s the diagnosis ... This is Empyema ... Because Empyema ... #clinical #video
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
the differential diagnosis ... #Clinical #Diagnosis ... #Radiology #CTChest ... #Cavity #Cyst #Emphysema ... #Comparison #RadiologyAssistant