32 results
Infectious Joint Pain - Differential Diagnosis Algorithm 
Polyarticular Join Pain
 • Viral Myalgia
 • Viral Arthritis
Lesions) • Fifth Disease ... & Symmetrical Rash ... (Measles- like rash ... Articular - Acute ... #Orthopedics #Causes
Secondary Syphilis Rash
Secondary syphilis is the most contagious of all the stages of this disease, and
of this disease ... the secondary stage ... treatment, the infection ... of disease ... resembling rashes caused
Algorithmic Approach to Acute Interstitial Nephritis
When to suspect AIN? (not sensitive)
 • AKI, AKD, rapidly progressive
Algorithmic Approach to Acute ... (<10%): fever, rash ... eosinophiluria, microscopic ... MatthewHoMD #Acute ... AIN #Algorithm #nephrology
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
early localized disease ... called "Bazin's disease ... children with acute ... observed in acute ... multiforme • Acute
Atlas of Urine Microscopy Findings
 • Epithelial cells - Normal
 • Renal tubular cells - Acute
tubular cells - Acute ... - Renal infection ... protein indicating acute ... Urinary tract infection ... key #diagnosis #nephrology
Hematuria - Differential Diagnosis Framework

Gross Hematuria: Red/Dark urine
 • 1ml blood/liter urine can induce color change
basement membrane disease ... deposits - Post-infectious ... of glomerular disease ... Hematuria: • Infection ... #urology #nephrology
Acute Purpura Fulminans Skin Rash on Physical Exam 
60 year old male ITP s/p splenectomy 
1d
Acute Purpura Fulminans ... Skin Rash on Physical ... rigors, diarrhea, nausea ... - BIDMC Infectious ... Diseases Fellowship
Causes of Thrombocytosis - Differential Diagnosis Algorithm
Spurious:
 • Artifact (redo CBC)
Autonomous:
 • Essential thrombocytosis
 • Polycythemia
Myelofibrosis Infectious ... : • Acute or Chronic ... disorders • Celiac disease ... or hyposplenic states ... #Hematology
Urine Microscopy - Casts
Acellular Casts
 • Hyaline Casts - Consists of only precipitated Tamm-Horsfell protein without
Urine Microscopy ... suggestive of acute ... in a variety of acute ... chronic kidney diseases ... #nephrology #interpretation
Urinary Casts and Disease Associations
Hyaline - May be nonspecific; seen in normal individuals or during severe
Disease Associations ... are seen in acute ... Advanced kidney disease ... Urinary tract infections ... #Differential #Microscopy