5 results
Back Pain - Differential Diagnosis
Primary Back Pathology:
 • Musculoligamentous injury (a.k.a. lumbosacral strain)
 • Spondylosis (i.e.
, Pathologic fracture ... Infection: Epidural abscess ... Pyelonephritis, Perinephric abscess ... Differential #Diagnosis #causes ... #primarycare #table
Stridor - Differential Diagnosis Framework:
High-pitched, variable respiratory sound

ETIOLOGIES:
Infectious:
 • Retropharyngeal abscess
 • Acute epiglottitis
 • Peritonsillar
Retropharyngeal abscess ... Peritonsillar abscess ... Mechanical: • Larynx fracture ... Foreign body Allergic ... differential #diagnosis #causes
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
• Most common cause ... of PCN allergy ... antibiotics once stable ... shows a small, stable ... #differential #causes
Summary table of types of hypersensitivity reactions. 
Type 1
 - Mediators: lgE
 - Antigen Form: Soluble
Summary table of ... Mechanism of Action: Allergen-specific ... lgE causes mast-cell ... reactions #types #allergy ... #table #classification
Webber Ankle Injury Classification

A: In a Supination-Adduction injury the fibula breaks first, with a fracture below
Webber Ankle Injury Classification ... In more severe cases ... appear to be a stable ... These injuries are caused ... #Classification