31 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
Atlas of Urine Microscopy Findings
 • Epithelial cells - Normal
 • Renal tubular cells - Acute
Atlas of Urine Microscopy ... tubular cells - Acute ... - Renal infection ... protein indicating acute ... 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
Urine Microscopy - Casts
Acellular Casts
 • Hyaline Casts - Consists of only precipitated Tamm-Horsfell protein without
Urine Microscopy ... suggestive of acute ... chronic kidney diseases ... #Urine #Microscopy ... #nephrology #interpretation
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
Urinary Casts and Disease Associations
Hyaline - May be nonspecific; seen in normal individuals or during severe
Disease Associations ... and concentrated urine ... are seen in acute ... Urinary tract infections ... #Differential #Microscopy
Causes of Proteinuria - Differential Diagnosis Algorithm
Persistent Proteinuria >150mg/d protein present on repeat testing including overnight
Causes of Proteinuria ... polyangiitis (GPA) / microscopic ... HSP • Post-infectious ... Minimal change disease ... #Proteinuria #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
Algorithm - Approach to the differential diagnosis of the patient presenting with overt glomerular proteinuria. CMV
arbitrarily defined as urine ... maculopapular rash ... vesicular rash, ... Nephrocalcinosis causes ... nephrotic #syndrome #nephrology