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Mediastinal masses are discussed in more detail in Mediastinal masses.
Here is just a brief overview. #Diagnosis
Mediastinal masses ... in Mediastinal masses ... #Mediastinal #Mass ... #Differential #Table ... Middle #Posterior #RadiologyAssistant
Headache Differential - Primary vs Secondary
A vast number of diseases can cause a headache. We divide
of diseases can cause ... headaches are caused ... by various exogenous ... Primary #Secondary #Table
Multiple masses
The differential diagnostic list of multiple masses is very long.
The most important diagnoses are listed
Multiple masses ... list of multiple masses ... listed in the table ... consolidations from masses ... #Differential #RadiologyAssistant
Consolidation is synonymous with airspace disease.
When you think of the causes of consolidation, think of 'what
you think of the causes ... or tumor cells (Table ... the alveoli and cause ... #Differential #RadiologyAssistant
Hilar enlargement
The table summarizes the causes of hilar enlargement.
Normal hili are:
- Normal in position - left
enlargement The table ... summarizes the causes ... Unilateral #Bilateral #RadiologyAssistant
Here are the most common examples of these four patterns on a chest x-ray (click image
opacities Nodule or mass ... Nodule - Multiple Masses ... Consolidation #Patterns #RadiologyAssistant
Nodular pattern(2)
1. Sarcoidosis: nodules with perilymphatic distribution, along fissures, adenopathy.
2. TB: Tree-in-bud appearance in a patient
a patient with active ... Pattern #Comparison #Table ... #RadiologyAssistant
Systemic Glucocorticoid Dose Equivalents. 

Note: approximate equivalent dose is based on anti-inflammatory potency. Fludrocortisone is not
mineralocorticoid activity ... anti-inflammatory activity ... chemotherapy induced nausea ... (postoperative nausea ... Steroid #Conversion #Table
Gynecomastia - Differential Diagnosis Algorithm
No Testicular Mass on Ultrasound
 • Adrenal Neoplasm
 • Increased Extraglomerular Aromatase
No Testicular Mass ... Extraglomerular Aromatase Activity ... Disease Testicular Mass ... No Testicular Mass ... Diagnosis #Algorithm #causes
Mucoid impaction
Mucus plugs or mucoid impaction can mimick the appearance of lung nodules or a mass.
Sometimes
lung nodules or a mass ... bronchial obstruction caused ... In this case there ... are some mass-like ... Mucus #Plugging #RadiologyAssistant