53 results
Approach to Thrombocytosis - Elevated Platelet Count - Differential Diagnosis Algorithm

Peripheral Smear concerning for malignancy?
- Differential Diagnosis ... Vasculitides, IBD, Celiac disease ... Kawasaki, Nephrotic syndrome ... Matthew Ho, MD PhD ... #Differential #Diagnosis
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
• Lyme disease ... Schönlein purpura • PAN ... Antiphospholipid-antibody syndrome ... #differential #diagnosis ... #rheumatology
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Chorioretinitis • Diagnosis ... - Compatible syndrome ... skin lesions, LAD ... #causes #radiology ... #neurology
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
and M panel Management ... : • Nephrotic syndrome ... (Epstein-Barr syndrome ... hypogammaglobulinemia #immunology #hematology ... #diagnosis #management
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
Cold Agglutinin Syndrome ... Diagnosis: • hemolytic ... Differential Diagnosis ... hemolytic #anemia #hematology ... #diagnosis
Extra-articular and Other Conditions Associated with Joint Pain

Eyes
  • Iritis or uveitis - Spondyloarthropathies, Sarcoidosis,
Bacterial or viral infection ... - SLE Neurologic ... Vasculitis (e.g., PAN ... #differential #diagnosis ... #rheumatology
Approach to Headaches - Differential Diagnosis Algorithm

Red flags (PHANTOMS):
 • Pattern change, progressively worse, papilledema
 •
- Differential Diagnosis ... papilledema • Horner syndrome ... lesion • CNS infection ... Matthew Ho, MD PhD ... #Algorithm #neurology
Supracondylar Elbow Fracture
• Most common elbow fracture in children, peak age 5-7 
• When looking at
anterior sail sign ... posterior fat pad ... ), compartment syndrome ... • ED Management ... #XRay #Diagnosis
Hematuria in Post-Renal Transplant Patient
Prevalence up to 12% in the postrenal transplant patient
 • Bacterial: Escherichia
, Busulfan • Disease ... (Goodpasture's syndrome ... #differential #diagnosis ... #blood #urine #management ... #treatment #nephrology
Dermatological semiology of Cutaneous Vasculitis 

Clinicopathologic correlations
 • Purpura, papules, pustules, necrosis: involvement of small vessels
Connective tissue disease ... vasculitis (5%): PAN ... vasculitis (3%) • Infections ... #semiology #signs ... #lesions #diagnosis