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Mediastinal Widening - Differential Diagnosis

 • Vascular: Aortic dissection, Aortic anourysm, Enlarged pulmonary arteries, Venous or
Mediastinal Widening - Differential ... arteries, Venous ... or arterial great ... Middle mediastinal, Posterior ... Mediastinal #Widening #Differential
On a chest film only the outer contours of the heart are seen.
In many cases we
blood from the pulmonary ... atrium. - Left atrial ... just below the pulmonary ... #Anatomy #Radiology ... Cardiac #Chambers #RadiologyAssistant
It is very important to differentiate between acute consolidation and chronic consolidation, because it will limit
very important to differentiate ... will limit the differential ... proteinaceous material ... Diagnosis #Radiology #Pulmonary ... #RadiologyAssistant
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Left Shunt - Anatomic ... Intracardiac, Pulmonary ... Gradient #alveolar #arterial ... #pulmonary #Hypoxia ... #hypoxemia #differential
The azygoesophageal recess is the region inferior to the level of the azygos vein arch in
vertebral column posteriorly ... Esophageal disease Left atrial ... cyst #Clinical #Anatomy ... Azygoesophageal #Recess #RadiologyAssistant
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
In the differential ... To differentiate ... without associated pulmonary ... fluid or solid material ... Emphysema #Comparison #RadiologyAssistant
In this illustration the lower lobe arteries are coloured blue because they contain oxygen-poor blood.
They have
the lower lobe arteries ... level of the main pulmonary ... arteries. ... #Anatomy #Radiology ... PulmonaryVeins #RadiologyAssistant
When a rib fracture heals, the callus formation may create a mass-like appearance (blue arrow).
Sometimes a
is necessary to differentiate ... and the enlarged pulmonary ... are dealing with pulmonary ... arterial hypertension ... #Pseudotumor #RadiologyAssistant
Tree-in-bud almost always indicates the presence of:
Endobronchial spread of infection (TB, MAC, any bacterial bronchopneumonia)
Airway disease
(TB, MAC, any bacterial ... Diagnosis #Radiology #Pulmonary ... CTChest #TreeInBud #Differential ... #RadiologyAssistant
The table on the left is the overall table for mediastinal masses.
In the next paragraphs we
masses #Diagnosis #Pulmonary ... Mediastinal #Mass #Differential ... Anterior #Middle #Posterior ... #RadiologyAssistant