400 results
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
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Differential diagnosis ... Centrilobular emphysema ... LIP #Clinical #Diagnosis ... #Radiology #CTChest
On the left a chest film of a 19 year old patient with Langerhans cell histiocytosis.
The
challenging differential diagnosis ... centrilobular emphysema ... Emphysema however ... diseases and also in emphysema ... Radiology #CXR #CTChest
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
the differential diagnosis ... associated pulmonary emphysema ... #Clinical #Diagnosis ... #Radiology #CTChest ... #Cavity #Cyst #Emphysema
Differential diagnosis of Lymphangiomyomatosis:
Langerhans cell histiocytosis: > 90% are smokers, cysts have irregular shapes and the
Differential diagnosis ... Centrilobular emphysema ... Clinical #Radiology #CTChest
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
) Differential diagnosis ... centrilobular emphysema ... #Clinical #Diagnosis ... #Radiology #CTChest
Basic Interpretation
A structured approach to interpretation of HRCT involves the following questions:
What is the dominant HR-pattern:
reticular
nodular
high
low attenuation (emphysema ... bronchiectasis) #Diagnosis ... Pulmonary #HRCT #CTChest
On the left a smoker with RB-ILD with subtle HRCT-findings.
The dominant pattern is ground glass opacification.
Additional
are paraseptal emphysema ... broad differential diagnosis ... Clinical #Radiology #CTChest
Boerhaave Syndrome 
Postemesis 
Iatrogenic (most common)
Left Posterolateral most common

Mackler's Triad:
Lower Chest Pain
Vomiting
Subcutaneous Emphysema

#Boerhaave #Syndrome #Diagnosis #Signs
Triad: Lower Chest ... Subcutaneous Emphysema ... Boerhaave #Syndrome #Diagnosis
Empyema Necessitans (EN) on Chest Wall Physical Examination

Pulmonary teaching case: you are called to the bedside
Empyema Necessitans ... This is Empyema ... Because Empyema ... Empyema necessitans ... Treatment of empyema