54 results
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Cystic LCH: - LAM ... : 'signet ring sign ... Clinical #Diagnosis #Radiology ... #Comparison #Table ... #RadiologyAssistant
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 ... Pattern #Comparison #Table ... #RadiologyAssistant
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
(LAM): regular cysts ... #Clinical #Radiology ... LowAttenuation #Cystic ... Pattern #Comparison #Table ... #RadiologyAssistant
Signs of Pulmonary Hypertension on Chest CT
 • Main PA is dilated and larger than the
Signs of Pulmonary ... Carina crossover sign ... of the carina (caudal ... @PulmPEEPs #Pulmonary ... ChestCT #CTChest #Radiology
Central distribution is seen in sarcoidosis and cardiogenic pulmonary edema.
Peripheral distribution is mainly seen in cryptogenic
and cardiogenic pulmonary ... #Diagnosis #Radiology ... #Pulmonary #HRCT ... #Differential #Table ... Central #Peripheral #RadiologyAssistant
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
- Aspiration - Pulmonary ... edema #Diagnosis #Radiology ... #Pulmonary #HRCT ... #Differential #Table ... #Upper #Lower #RadiologyAssistant
Since these risk factors are numerous and have different effects on the malignancy risk, it is
malignancy [8](Table ... Diagnosis #EBM #Radiology ... #Pulmonary #Fleischner ... PulmonaryNodule #RadiologyAssistant
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
Emphysema - Lung cysts ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... TractionBronchiectasis #Cysts ... Emphysema #SignetRing #RadiologyAssistant
Lobar consolidation
The most common presentation of consolidation is lobar or segmental.
The most common diagnosis is lobar
The table lists ... #Diagnosis #Radiology ... #Pulmonary #CXR ... #Differential #RadiologyAssistant
Pulmonary Embolism on POCUS Echocardiogram

Mid 30's female with chest pain/dyspnea.  Triage EKG (no prior).
Pulmonary Embolism ... RV, McConnell's sign ... Echocardiogram #A4c ... #clinical #cardiology ... #McConnells #sign