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On the left three different patients with lung cysts.
From left to right: Lymphangiomyomatosis, LIP and Langerhans
Langerhans cell histiocytosis ... CTChest #Cystic #Comparison ... #LAM #LIP #Histiocytosis
On the left radiological pathological correlation of Langerhans cell histiocytosis in respectively nodular stage and early
Langerhans cell histiocytosis ... Microscopy #LCH #LangerhansCellHistiocytosis ... #Late #Histiocytosis
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
Langerhans cell histiocytosis ... Differential #Diagram #Comparison
Nodular pattern(2)
1. Sarcoidosis: nodules with perilymphatic distribution, along fissures, adenopathy.
2. TB: Tree-in-bud appearance in a patient
Langerhans cell histiocytosis ... Nodular #Pattern #Comparison
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Langerhans cell histiocytosis ... #Differential #Comparison
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Langerhans cell histiocytosis ... Cystic #Pattern #Comparison
On the left a case with multiple round and bizarre shaped cysts.
There was an upper lobe
Langerhans cell histiocytosis ... Radiology #CTChest #LangerhansCellHistiocytosis ... #Langerhans #Histiocytosis
On the left another case of Langerhans' cell histiocytosis.
It started as small noduli, which progressed over
Langerhans' cell histiocytosis ... #CTChest #LCH #LangerhansCellHistiocytosis ... #Histiocytosis
HRCT findings in Langerhans cell histiocytosis:
Early stage:
- Small irregular or stellate nodules in centrilobular location.
Late stage
Langerhans cell histiocytosis ... Langerhans cell histiocytosis ... #CTChest #LCH #LangerhansCellHistiocytosis ... #Early #Histiocytosis
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
Langerhans cell histiocytosis ... #Differential #Comparison