18 results
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
: 'signet ring sign ... Centrilobular emphysema ... Clinical #Diagnosis #Radiology ... #CTChest #Cystic ... #Comparison #Table
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
These include: - Emphysema ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... LowAttenuation #Differential ... #Diagram #Comparison
Congenital absence of the pericardium: 
- CXR: leftward shift of the cardiac silhouette, Snoopy sign, no
pericardium: - CXR ... silhouette, Snoopy sign ... in a posterior position ... CardiacMRI #CMRI #cardiology ... #chest #radiology
Radiologists use many terms to describe areas of decreased density or lucencies within the lung, like
pneumatocele, emphysema ... we describe a chest ... visible wall #CXR ... #Lucency #Differential ... Pulmonary #Diagnosis #Radiology
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
In the differential ... To differentiate ... Clinical #Diagnosis #Radiology ... #CTChest #Cavity ... #Comparison #RadiologyAssistant
On the left a chest film of a 19 year old patient with Langerhans cell histiocytosis.
The
most challenging differential ... the central dot sign ... helpfull in the differential ... #Clinical #Radiology ... #CXR #CTChest #
Stage I - Redistribution
In a normal chest film with the patient standing erect, the pulmonary vessels
or semi-erect position ... In the supine position ... In these cases comparison ... #Clinical #Radiology ... #CXR #CHF #Cephalization
Subcutaneous emphysema on Chest XRay

Etiologies:   Pneumothorax (spontaneous or traumatic), trauma (tracheobronchial injury, barotrauma), esophageal
Subcutaneous emphysema ... on Chest XRay ... iotrogenic (from positive ... #ChestXRay #CXR ... #Clinical #Radiology
Heart failure with Reduced Ejection Fraction (HFrEF)
Clinical Presentation
1. Typical symptoms: dyspnea, orthopnea paroxysmal noctumal dyspnea, fatigue,
More Specific Signs ... venous pressure, positive ... Chest x-ray: signs ... of CXR congestion ... diagnosis #management #cardiology
STEMI Equivalents on ECG
 • Conventional STEMI - Elevation of ST segment at (or 40-60 ms
continues into tall, positive ... V2 • Wellens sign ... pain • Wellens sign ... EKG #diagnosis #differential ... #cardiology #electrocardiogram