2839 results
Causes of Rhabdomyolysis - Differential Diagnosis
 • Drugs & Toxins (Statins, alcohol, cocaine)
 • Direct Muscle
Causes of Rhabdomyolysis ... Muscle Disease (myositis ... Differential #Diagnosis #Causes
Important Causes of Diplopia 
TIER 1-CRITICAL
Basilar artery thrombosis, Botulism, Basilar meningitis, Aneurysmn
TIER 2-EMERGENT:
Vertebral dissection, Myasthenia gravis,
Important Causes ... neuropathy, Orbital myositis
Systemic Lupus Erythematosus (SLE): Musculoskeletal Manifestations

 • Immune Complex Deposition
    - Arthralgia, Arthritis
Normal CK - Myositis ... Myopathy (Also caused
Generalized Weakness - Differential Diagnosis Framework
"l feel weak":
 • Infectious: Influenza, EBV, PNA, Bacteremia, Sepsis
 •
Inflammatory/Rheum: Myositis ... Differential #Diagnosis #causes
Creatine Kinase - Causes of Elevated CK Levels
Acute CK Elevation (Pain > Weakness):
 • RHABDOMYOLYSIS
Creatine Kinase - Causes ... Subacute to Chronic Causes ... Inclusion body myositis
Proptosis - Differential Diagnosis - Unilateral vs Bilateral
Unilateral:
 • Infections (can become bilateral with cavernous sinus
- Orbital myositis ... Unilateral #Bilateral #Causes
Chronic Joint Pain - Differential Diagnosis Algorithm 
Intra-Articular
 - Bone
     • Stress
Fibromyalgia • Myositis ... #Orthopedics #Causes
Differential diagnoses for the neuro-ophthalmologic finding of diplopia.
Neoplastic: 
 • Intraorbital meningioma 
 • Pituitary adenoma
pseudotumor • Orbital myositis ... Differential #Diagnosis #Causes
Great Mimickers - SHALLOTS Mnemonic

S- Syphilis - Neurosyphilis, aortitis, gummas... Granulomas can form anywhere! Skin, mucosa,
What doesn't HIV cause ... splenomegaly, cytopenias, nausea ... consumption- number one cause ... hepatomegaly, myositis
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
Bone/Joint Causes ... Hematoma Venous Causes ... Edema Arterial Causes ... aneurysms Nerve Causes ... Compartment syndrome • Myositis