28 results
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
Leg Pain - Differential ... thrombophlebitis Skin ... band syndrome • Shin ... Brittle nails - Skin ... skin • Inflammation
Cervical Lymphadenopathy - Lymph Node Drainage
Preauricular nodes - Drain scalp, skin
 • Differential diagnosis: Scalp infections,
- Drain scalp, skin ... Malignancies: Skin ... upper thoracic skin ... genitourinary tract, pulmonary ... Thyroid/laryngeal disease
Rapidly Growing Mycobacterial Infections

 • Mycobacterium abscessus - Is the most pathogenic and the most likely
likely to cause pulmonary ... underlying lung disease ... Primary skin and ... Mycobacterium #diagnosis #differential ... #infectiousdiseases
Joint Disorders - Differential Diagnosis Algorithm
Monoarthritis
 • Septic
 • Crystalline
     - Gout
Joint Disorders - Differential ... arthritis - with the skin ... Inflammatory Bowel Disease ... Joint #Disorders #msk ... #Differential #
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
Purpura, ischemic skin ... - Affects the skin ... Cryoglobulinemic Vasculitis - Skin ... glomerular ischemia - Skin ... Small Vessels: Skin
Adult-Onset Still's Disease
Clinical triad: Fever, Arthralgia/arthritis, Skin rash ± odynophagia
+ Biological inflammation: Increased neutrophils, Hyperferritinemia, decreased
Adult-Onset Still's Disease ... Arthralgia/arthritis, Skin ... fraction < 20% Differential ... autoinflammatory diseases ... hepatitis • Pulmonary
Nontuberculous Mycobacteria
RAPID GROWERS: 
 • Mycobacterium abscessus, chelonae, fortuitum
SLOW GROWERS: 
 • Mycobacterium avium complex, marinum,
marinum, kansasii PULMONARY ... DISEASE: • Mycobacterium ... DISSEMINATED DISEASE ... scrofulaceum, malmoense SKIN ... #Mycobacteria #differential
Highlighted Conditions With Arteritis or Periarteritis of the Coronaries
Takayasu's arteritis:
 - Onset < 40 yrs
 -
Polyarteritis nodosa: - Skin ... sinusitis - pulmonary ... IgG4-related disease ... Coronaries #Arteritis #Differential ... Diagnosis #Cardiology #Table
Small Vessel Vasculitides
 • Granulomatosis with polyangiitis - Granulomatous manifestations (e.g., nasal crusting, destructive sinusitis, pulmonary
destructive sinusitis, pulmonary ... Interstitial lung disease ... in absence of skin ... Vasculitides #vasculitis #differential
Approach to Eosinophilic Lung Diseases
 • Acute Eosinophilic Pneumonia (< 1 wk) - ~30yo, M; Recent
Eosinophilic Lung Diseases ... loss; CV, CNS, skin ... Eosinophilic #Lung #Diseases ... #pulmonary #differential ... diagnosis #comparison #table