31 results
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
child-bearing age ... : 'signet ring sign ... Clinical #Diagnosis #Radiology ... #CTChest #Cystic ... Comparison #Table #RadiologyAssistant
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
(LAM): uniform cysts ... child-bearing age ... #Clinical #Radiology ... #HRCT #CTChest ... Comparison #Table #RadiologyAssistant
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
(LAM): regular cysts ... child-bearing age ... #Clinical #Radiology ... #HRCT #CTChest ... Comparison #Table #RadiologyAssistant
Pulmonary Embolism on POCUS Echocardiogram

Mid 30's female with chest pain/dyspnea.  Triage EKG (no prior).
's female with chest ... RV, McConnell's sign ... Echocardiogram #A4c ... #clinical #cardiology ... #McConnells #sign
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Septic emboli
Septic emboli usually present as multiple ill-defined nodules.
In about 50% cavitation is seen.
CT demonstrates more
feeding vessel sign ... left lung, which are ... #Clinical #Radiology ... #CXR #CTChest # ... SepticEmboli #Cavity #RadiologyAssistant
Bronchiectasis is defined as localized bronchial dilatation.
The diagnosis of bronchiectasis is usually based on a combination
A signet-ring sign ... viral, at an early age ... bronchitis, COPD and cystic ... #Diagnosis #Radiology ... #Differential #RadiologyAssistant
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
On HRCT there are ... The cystic pattern ... When the cysts have ... #Diagnosis #Radiology ... #Differential #RadiologyAssistant
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
Cysts occur without ... are seen in patients ... Clinical #Diagnosis #Radiology ... #CTChest #Cavity ... #Comparison #RadiologyAssistant
Mucoid impaction
Mucus plugs or mucoid impaction can mimick the appearance of lung nodules or a mass.
Sometimes
bronchiectasis, as in cystic ... this case there are ... #Clinical #Radiology ... #CXR #CTChest # ... Mucus #Plugging #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 # ... Histiocytosis #RadiologyAssistant