58 results
Causes of Erythema Nodosum - Mnemonic

NO cause found in 60% of cases
Drugs (antibiotics e.g., sulfonamides, amoxicillin)
Oral
Drugs (antibiotics e.g ... Sarcoidosis or Lofgren's syndrome ... Viral: HSV, EBV, HIV ... #Differential # ... Diagnosis #Dermatology
Causes of Thrombocytopenia - Differential Diagnosis Algorithm
 
Decreased Megakaryopoiesis
 • Aplastic Anemia
 • Toxic Damage (e.g.
Toxic Damage (e.g ... Displacement (e.g ... Non-lmmune: • HELLP Syndrome ... Foreign Surface (e.g ... #Causes #Hematology
Connective tissue disease-associated interstitial lung diseases

LIP: lymphoid interstitial pneumonia. NSIP: nonspecific interstitial pneumonia. OP: organizing pneumonia.
PSS: Sjogren syndrome ... LungDisease #CTILD #Diagnosis ... #Differential # ... Comparison #Table ... #Pulmonary #Rheumatology
Hodgkin's Lymphoma vs Non-Hodgkin's Lymphoma - Comparison

Hodgkin's Lymphoma:
 • Epidemiology: young adults 20-30, older 50-70
 •
Epidemiology: young ... Immunosuppression (e.g ... Autoimmune diseases (e.g ... Malignancies (eg ... hematology
Short Stature - Differential Diagnosis Algorithm
Normal Variant, Normal Puberty Onset (BA = CA)
 • Familial Short
Short Stature - Differential ... Diagnosis Algorithm ... Panhypopituitarism Treatment ... #Diagnosis #Algorithm ... endocrinology #causes
Hyponatremia - Differential Diagnosis by Mechanism
Decr Blood Pressure (“Decr Effective Circulating Volume”) 
 - Volume depletion
- Cirrhosis Syndrome ... - Malignancy (e.g ... CNS pathology (e.g ... #Diagnosis #Table ... #Causes #Sodium
Jaundice - Differential Diagnosis Algorithm
Pre-Hepatic - Unconjugated Hyperbilirubinemia
Increased Production
 • Hemolysis
 • Ineffective Erythropoiesis
 • Hematoma
Decreased
Jaundice - Differential ... Diagnosis Algorithm ... Sepsis • Drugs (e.g ... • Gilbert's Syndrome ... #Causes #Hepatology
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
(usually IgG) (e.g ... (usually IgM) (e.g ... deficiencies (e.g ... #differential # ... diagnosis #hematology
Reflex Testing - Causes of Hyporeflexia and Hyperreflexia
Focal Hyporeflexia: 
 • Radiculopathy, Mononeuropathy, Polyneuropathy, Acute stroke,
polyneuropathy (e.g ... Guillain-Barré syndrome ... Hyperthyroidism, Serotonin syndrome ... #differential # ... diagnosis #table
Causes of Proteinuria - Differential Diagnosis Algorithm
Persistent Proteinuria >150mg/d protein present on repeat testing including overnight
Causes of Proteinuria ... - Differential ... Diagnosis Algorithm ... • Fanconi's syndrome ... Protein deposition (eg