106 results
Pathophysiology of Hypocomplementemic Urticarial Vasculitis

C1q/anti-C1q antibiody ->
Immune Complex Formation - Complement Pathway Activation (C3a and C5a)
Hypocomplementemic Urticarial Vasculitis ... antibiody -> Immune Complex ... > Incr Immune Complex ... Formation -> Vasculitis ... Pathophysiology #Rheumatology
Vasculitis Involving the Skin - Differential Diagnosis Framework

Primary: 50% Cutaneous Vasculitis: Leukocytoclastic Vasculitis
Secondary: CTD: SLE, RA
Vasculitis Involving ... : • Immune Complex ... Vasculitis: - ... #skin #dermatology ... #rheumatology #
Causes of Neutropenia with Pancytopenia - Differential Diagnosis Algorithm
Sequestration:
 • Splenomegaly
Marrow Infiltration:
 • Hematologic and non-hematologic
Causes of Neutropenia ... Differential Diagnosis Algorithm ... and non-hematologic ... Differential #Diagnosis #Algorithm ... #Causes #Hematology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
disorders, or other causes ... • Secondary Causes ... • Ig A vasculitis ... Differential #Diagnosis #hematology ... #rheumatology #
The Associated Diseases of Cryptoglobulinemia Vasculitis
#rheumatology #causes
Cryptoglobulinemia Vasculitis ... #rheumatology ... #causes
Vasculitis - Break down based on vessel size 
Distribution of vessel involvement by large vessel vasculitis,
Vasculitis - Break ... by large vessel vasculitis ... medium vessel vasculitis ... although immune complex ... #Diagnosis #Rheumatology
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
pathophysiologic causes ... immunofluorescence Immune Complex ... Glomerulonephritis #Vasculitis ... differential #diagnosis #algorithm ... #rheumatology
2021 ACR/VF Guidelines for Management of Giant Cell Arteritis (GCA)

#GiantCell #Arteritis #GCA #ACR2021 #Management #rheumatology #algorithm
ACR2021 #Management #rheumatology ... #algorithm #vasculitis
Causes of Thrombocytopenia - Differential Diagnosis Algorithm
 
Decreased Megakaryopoiesis
 • Aplastic Anemia
 • Toxic Damage (e.g.
Causes of Thrombocytopenia ... Differential Diagnosis Algorithm ... HUS • DIC • Vasculitis ... Differential #Diagnosis #Algorithm ... #Causes #Hematology
Approach to Thrombocytosis - Elevated Platelet Count - Differential Diagnosis Algorithm

Peripheral Smear concerning for malignancy?
Differential Diagnosis Algorithm ... → Refer to hematology ... , Vasculitides, ... Differential #Diagnosis #Algorithm ... #hematology