310 results
Pathophysiology of Hypocomplementemic Urticarial Vasculitis

C1q/anti-C1q antibiody ->
Immune Complex Formation - Complement Pathway Activation (C3a and C5a)
Hypocomplementemic Urticarial Vasculitis ... Complex Formation - Complement ... Formation -> Vasculitis ... Hypocomplementemic #Urticarial #Vasculitis ... Pathophysiology #Rheumatology
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
staining): • Low Complement ... Idiopathic • Normal Complement ... Glomerulonephritis #Vasculitis ... #differential #diagnosis ... #algorithm #rheumatology
A System for Vasculitides 

#Diagnosis #IM #Rheum #Vasculitis #Small #Medium #Large #Vessel #Size #Classification #ANCA #Differential
A System for Vasculitides ... #Diagnosis # ... IM #Rheum #Vasculitis ... #Differential #Algorithm
Petechiae/Purpura - Diagnostic Algorithm. Pathophysiology: 1) Represent the passage of erythrocytes from the intravascular to extravascular
Petechiae/Purpura - Diagnostic ... Algorithm. ... trauma, infection, vasculitis ... pulmonary #Diagnosis ... #Dermatology #Rash
Vasculitis Involving the Skin - Differential Diagnosis Framework

Primary: 50% Cutaneous Vasculitis: Leukocytoclastic Vasculitis
Secondary: CTD: SLE, RA
Vasculitis Involving ... - Differential Diagnosis ... #skin #dermatology ... #rheumatology # ... differential #diagnosis
ANCA-Associated Vasculitis
A group of necrotizing, small-vessel vasculitis without immune complex deposition. Complement levels are normal due
ANCA-Associated Vasculitis ... , small-vessel vasculitis ... Complement levels ... PANCA #MPO #PR3 #Diagnosis ... #Rheumatology
Pulmonary Renal Syndromes and Mimics - Differential Diagnosis Framework
Diffuse alveolar hemorrhage + rapidly progressive glomerulonephritis
90%:
 -
- Differential Diagnosis ... ANCA Associated Vasculitis ... anti-GBM) 10%: - Low Complement ... - Normal Complement ... #Differential #Diagnosis
Causes of Hemolytic Anemia - Differential Diagnosis
Inherited
 • Membrane
 • Internal
    - Hemoglobin
- Differential Diagnosis ... Antibody/DAT+ - Complement ... #Differential #Diagnosis ... #Causes #hematology
Vascular Skin Lesions - Differential Diagnosis Algorithm
 - Petechiae < 0.2 cm diameter
 - Purpura 0.2
- Differential Diagnosis ... Algorithm - Petechiae ... #SkinRash #dermatology ... #Differential #Diagnosis ... #Algorithm #causes
Causes of Neutropenia with Pancytopenia - Differential Diagnosis Algorithm
Sequestration:
 • Splenomegaly
Marrow Infiltration:
 • Hematologic and non-hematologic
- Differential Diagnosis ... Algorithm Sequestration ... #Differential #Diagnosis ... #Algorithm #Causes ... #Hematology