16 results
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Cystic LCH: - LAM ... Centrilobular emphysema ... Diagnosis #Radiology #CTChest ... Differential #Comparison #Table ... #RadiologyAssistant
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
LCH: multiple round ... Centrilobular emphysema ... Radiology #HRCT #CTChest ... Pattern #Comparison #Table ... #RadiologyAssistant
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Centrilobular emphysema ... histiocytosis (LCH ... Radiology #HRCT #CTChest ... Pattern #Comparison #Table ... #RadiologyAssistant
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
result in decreased lung ... These include: - Emphysema ... - Lung cysts (LAM ... Radiology #Pulmonary #CTChest ... #RadiologyAssistant
Emphysema, when it is severe, can mimick Langerhans cell histiosytosis.
When it extends beyond the centrilobular area
look as if it is cystic ... patients with LCH ... , but also areas ... Clinical #Radiology #CTChest ... #Emphysema #RadiologyAssistant
Radiologists use many terms to describe areas of decreased density or lucencies within the lung, like
, like cyst, cavity ... pneumatocele, emphysema ... we describe a chest ... with a thin wall Emphysema ... #Differential #Table
On the left another case of Langerhans' cell histiocytosis.
It started as small noduli, which progressed over
bizarre shaped cysts ... replace normal lung ... Clinical #Radiology #CTChest ... #LCH #LangerhansCellHistiocytosis ... #RadiologyAssistant
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
the surrounding lung ... associated pulmonary emphysema ... Diagnosis #Radiology #CTChest ... Emphysema #Comparison ... #RadiologyAssistant
Cystic lung disease
Lung cysts are defined as radiolucent areas with a wall thickness of less than
Cystic lung disease ... Lung cysts are ... Cystic lung diseases ... listed in the table ... #Differential #RadiologyAssistant
On the left a chest film of a 19 year old patient with Langerhans cell histiocytosis.
The
caused by multiple cysts ... Emphysema however ... #LCH #LangerhansCellHistiocytosis ... Histiocytosis #Cystic ... #RadiologyAssistant