84 results
diagnosis differential rheumatology hematology dermatology management nephrology neurology workup lupus pulmonary cardiology aki clinical fever mnemonic obgyn pathophysiology signs skinrash
Pathophysiology of Hypocomplementemic Urticarial Vasculitis C1q/anti-C1q antibiody -> Immune Complex Formation - Complement Pathway Activation (C3a and C5a)
Pathophysiology of Hypocomplementemic ... Urticarial Vasculitis ... Complex Formation - Complement ... Formation -> Vasculitis ... TerrierBen #Hypocomplementemic
Causes of Hypocomplementemia - CHAMPS Mnemonic C - Cryoglobulinemia (85%), C3 glomerulopathy, cirrhosis H - Heavy Chain deposition
Causes of Hypocomplementemia ... @AnnKumfer #Hypocomplementemia ... #Low #Complement
Vasculitis and Vasculitides - Differential Diagnosis Framework When to Consider Vasculitis: • Purpura, ischemic skin lesions •
tract, and often causes ... often involved • Hypocomplementemic ... Urticaria and hypocomplementemia ... against MPO • Complement ... , and SLE) • Urinalysis
Pulmonary Renal Syndromes and Mimics - Differential Diagnosis Framework Diffuse alveolar hemorrhage + rapidly progressive glomerulonephritis 90%: -
ANCA Associated Vasculitis ... anti-GBM) 10%: - Low Complement ... Levels: SLE, Cryoglobulinemic ... - Normal Complement ... Renal Crisis, IgA Vasculitis
Rapidly Progressive Glomerulonephritis (RPGN) RPGN has three primary pathophysiologic causes differentiated by immunofluorescence Immune Complex Mediated (granular staining):
pathophysiologic causes ... staining): • Low Complement ... Idiopathic • Normal Complement ... Glomerulonephritis #Vasculitis ... differential #diagnosis #algorithm
Causes of Thrombocytopenia - Differential Diagnosis Algorithm Decreased Megakaryopoiesis • Aplastic Anemia • Toxic Damage (e.g.
Causes of Thrombocytopenia ... Differential Diagnosis Algorithm ... Autoimmune • ITP • SLE ... HUS • DIC • Vasculitis ... #Causes #Hematology
Cryoglobulinemia Summary Cryoglobulins: • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
• They can cause ... Cryoglobulins Cause ... diseases: - 10% SLE ... • Low serum C4 complement ... erythematosus (SLE
Dermatological semiology of Cutaneous Vasculitis Clinicopathologic correlations • Purpura, papules, pustules, necrosis: involvement of small vessels
semiology of Cutaneous Vasculitis ... Identification of causes ... • Drug-induced vasculitis ... disease (10%) : SLE ... +++ • IgA vasculitis
Causes of Polyneuropathy - Differential Diagnosis Algorithm • Metabolic: DM, Hypothyroidism, CKD, Cirrhosis, Nutritional deficiency •
Causes of Polyneuropathy ... Differential Diagnosis Algorithm ... Paraneoplastic, CTD (SLE ... RA, Sjogren’s), Vasculitis ... #causes #neurology
Purpura - Differential Diagnosis Framework Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
disorders, or other causes ... • Secondary Causes ... Splenomegaly - CTD (SLE ... • Ig A vasculitis ... Associated - SLE
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