15 results
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
: round cysts, evenly ... : 'signet ring sign ... Clinical #Diagnosis #Radiology ... #CTChest #Cystic ... #Cysts #Differential
On the left three different patients with lung cysts.
From left to right: Lymphangiomyomatosis, LIP and Langerhans
patients with lung cysts ... Langerhans cell histiocytosis ... Clinical #Diagnosis #Radiology ... #CTChest #Cystic ... #RadiologyAssistant
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Langerhans cell histiocytosis ... multiple thick walled cysts ... (LAM): regular cysts ... #Clinical #Radiology ... #HRCT #CTChest
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
Emphysema - Lung cysts ... Langerhans cell histiocytosis ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... TractionBronchiectasis #Cysts
On the left another case of Langerhans' cell histiocytosis.
It started as small noduli, which progressed over
Langerhans' cell histiocytosis ... bizarre shaped cysts ... #Clinical #Radiology ... #CTChest #LCH # ... #Cystic #RadiologyAssistant
HRCT findings in Langerhans cell histiocytosis:
Early stage:
- Small irregular or stellate nodules in centrilobular location.
Late stage
airspaces Cysts ... There are no cysts ... #Clinical #Radiology ... #CTChest #LCH # ... #RadiologyAssistant
Nodular pattern(2)
1. Sarcoidosis: nodules with perilymphatic distribution, along fissures, adenopathy.
2. TB: Tree-in-bud appearance in a patient
Langerhans cell histiocytosis ... before the typical cysts ... #Clinical #Radiology ... #HRCT #CTChest ... Comparison #Table #RadiologyAssistant
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
Cysts occur without ... Langerhans cell histiocytosis ... Clinical #Diagnosis #Radiology ... #CTChest #Cavity ... #Cyst #Emphysema
Differential diagnosis of Lymphangiomyomatosis:
Langerhans cell histiocytosis: > 90% are smokers, cysts have irregular shapes and the
Langerhans cell histiocytosis ... 90% are smokers, cysts ... gren syndrome. ... #Clinical #Radiology ... #LAM #Cystic #RadiologyAssistant
In a later stage the nodules start to cavitate and become cysts.
These cysts start as round
cavitate and become cysts ... These cysts start ... bizarre shaped cysts ... #Clinical #Radiology ... #CTChest #LCH #