28 results
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Cystic LCH: - LAM ... : round cysts, evenly ... Clinical #Diagnosis #Radiology ... #CTChest #Cystic ... #Comparison #Table
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
low attenuation (table ... The cystic pattern ... When the cysts have ... honeycombing, it frequently ... #Diagnosis #Radiology
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
(LAM): uniform cysts ... bizarre shaped cysts ... #Clinical #Radiology ... #HRCT #CTChest ... Pattern #Comparison #Table
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
(LAM): regular cysts ... #Clinical #Radiology ... #HRCT #CTChest ... LowAttenuation #Cystic ... Pattern #Comparison #Table
A 22 year old female with cystic fibrosis presents to you complaining of increasing shortness of
old female with cystic ... Her chest x-ray ... #Clinical #CXR # ... chest #xray #Cystic ... #Fibrosis #radiology
Estimated Medical Radiation Doses for 5 Year-Old Child

3-view ankle	0.0015 mSv	1/14th CXRs
2-view chest	0.02 mSv	1 CXRs
Anteroposterior and lateral
0.0015 mSv 1/14th CXRs ... 2-view chest 0.02 ... Chest CT 3 mSv ... #PatientInfo #Radiology ... Nuclear #Comparison #Table
Nodular pattern(2)
1. Sarcoidosis: nodules with perilymphatic distribution, along fissures, adenopathy.
2. TB: Tree-in-bud appearance in a patient
before the typical cysts ... #Clinical #Radiology ... #HRCT #CTChest ... Pattern #Comparison #Table
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
Cavities frequently ... Cysts occur without ... Clinical #Diagnosis #Radiology ... #CTChest #Cavity ... #Cyst #Emphysema
There is a hydropneumothorax.
Notice the air-fluid level (blue arrow).
The upper lobe is still attached to the
attached to the chest ... There is a lung cyst ... leading to pulmonary cyst ... #Clinical #Radiology ... #CXR #Pneumothorax
Pericardial cyst
Pericardial cysts are connected to the pericardium and usually contain clear fluid.
The majority of pericardial
Pericardial cyst ... cardiophrenic angle, more frequently ... On the chest x-ray ... #Clinical #Radiology ... #CXR #CTChest #