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On the left three different patients with lung cysts.
From left to right: Lymphangiomyomatosis, LIP and Langerhans
Langerhans cell histiocytosis ... Diagnosis #Radiology #CTChest ... Comparison #LAM #LIP #Histiocytosis
On the left radiological pathological correlation of Langerhans cell histiocytosis in respectively nodular stage and early
Langerhans cell histiocytosis ... Radiology #Pathology #CTChest ... LangerhansCellHistiocytosis #Late #Histiocytosis
Nodular pattern(2)
1. Sarcoidosis: nodules with perilymphatic distribution, along fissures, adenopathy.
2. TB: Tree-in-bud appearance in a patient
Langerhans cell histiocytosis ... Radiology #HRCT #CTChest
On the left a case with multiple round and bizarre shaped cysts.
There was an upper lobe
Langerhans cell histiocytosis ... Clinical #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 ... Clinical #Radiology #CTChest ... LangerhansCellHistiocytosis #Histiocytosis
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Langerhans cell histiocytosis ... Diagnosis #Radiology #CTChest
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
Langerhans cell histiocytosis ... Radiology #Pulmonary #CTChest
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Langerhans cell histiocytosis ... Radiology #HRCT #CTChest
HRCT findings in Langerhans cell histiocytosis:
Early stage:
- Small irregular or stellate nodules in centrilobular location.
Late stage
Langerhans cell histiocytosis ... Langerhans cell histiocytosis ... Clinical #Radiology #CTChest ... LangerhansCellHistiocytosis #Early #Histiocytosis
On the left a chest film of a 19 year old patient with Langerhans cell histiocytosis.
The
On the left a chest ... Langerhans cell histiocytosis ... Langerhans cell histiocytosis ... Radiology #CXR #CTChest ... LangerhansCellHistiocytosis #Histiocytosis