9 results
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Langerhans cell histiocytosis ... : 'signet ring sign ... Clinical #Diagnosis #Radiology ... #CTChest #Cystic ... #Cysts #Differential
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Langerhans cell histiocytosis ... #Clinical #Radiology ... #HRCT #CTChest ... #LowAttenuation ... #RadiologyAssistant
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
Langerhans cell histiocytosis ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... #LowAttenuation ... #Differential #
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
LCH: multiple round ... #Clinical #Radiology ... #HRCT #CTChest ... #LowAttenuation ... #RadiologyAssistant
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
before the typical cysts ... Clinical #Diagnosis #Radiology ... #Pulmonary #CTChest ... #Comparison #Table ... #RadiologyAssistant
he CT shows a lesion that originates in the lung.
Many would have a lungcancer on the
the top of their differential ... Rounded atelectasis ... Rounded atelectasis ... #Clinical #Radiology ... #Rounded #Atelectasis
Differential diagnosis of Lymphangiomyomatosis:
Langerhans cell histiocytosis: > 90% are smokers, cysts have irregular shapes and the
Differential diagnosis ... Langerhans cell histiocytosis ... 90% are smokers, cysts ... gren syndrome. ... #Clinical #Radiology
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
low attenuation (table ... When the cysts have ... Langerhans cell histiocytosis ... #Diagnosis #Radiology ... #RadiologyAssistant
On the left a chest film of a 19 year old patient with Langerhans cell histiocytosis.
The
caused by multiple cysts ... most challenging differential ... the central dot sign ... #Clinical #Radiology ... #Cystic #RadiologyAssistant