19 results
Diagnosis and Management of Hypocomplementemic Urticarial Vasculitis (HUV)

Diagnosis of HUV
1) Chronic urticaria 
2) Leukocytoclastic vasculitis 
3)
Diagnosis and Management ... of Hypocomplementemic ... vasculitis 3) Hypocomplementemia ... TerrierBen #Hypocomplementemic ... #Rheumatology
Causes of Hypocomplementemia - CHAMPS Mnemonic
C - Cryoglobulinemia (85%), C3 glomerulopathy, cirrhosis
H - Heavy Chain deposition
Causes of Hypocomplementemia ... @AnnKumfer #Hypocomplementemia ... #Low #Complement ... #differential #hematology
Pathophysiology of Hypocomplementemic Urticarial Vasculitis

C1q/anti-C1q antibiody ->
Immune Complex Formation - Complement Pathway Activation (C3a and C5a)
Pathophysiology of Hypocomplementemic ... Complex Formation - Complement ... TerrierBen #Hypocomplementemic ... Pathophysiology #Rheumatology
IgG4-Related Disease
Clinical history:  Man, 60 years, multiorgan involvement, unique or multiple inflammatory pseudotumor
4 phenotypes:
 •
pseudotumor 4 phenotypes ... rheumatoid factor), ± hypocomplementemia ... Disease #diagnosis #management ... #phenotypes #workup ... #treatment #rheumatology
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
staining): • Low ... Complement: Post-strep ... Idiopathic • Normal Complement ... differential #diagnosis #algorithm ... #rheumatology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
often involved • Hypocomplementemic ... Urticaria and hypocomplementemia ... against MPO • Complement ... (Low levels mixed ... differential #diagnosis #rheumatology
Complement Deficiency Testing Algorithm
 • Normal CH50 and AH50 AND High suspicion for complement deficiency
 •
Complement Deficiency ... Testing Algorithm ... deficiency • Low ... Deficiency #Testing #Algorithm ... #hematology #diagnosis
Systemic Lupus Erythematosus (SLE) - Diagnosis and Management Summary
 • Epidemiology: 10-180/100,000, Typically Age 20-40, F:M
Diagnosis and Management ... 60-80% - Low ... complement - 50 ... Usual therapeutic management ... #Summary #rheumatology
Suggested algorithm for bone marrow biopsy and skeletal imaging in patients with monoclonal gammopathy of undetermined
Suggested algorithm ... /dL) IgM MGUS, low-risk ... #MGUS #Biopsy #algorithm ... #diagnosis #management ... #hematology #multiplemyeloma
Our approach to the diagnosis and initial management of patients with suspected HIT. Our approach is
diagnosis and initial management ... imprecise, and complemented ... #Diagnosis #Management ... #Hematology #HIT ... Thrombocytopenia #Algorithm