18 results
Causes of Hypocomplementemia - CHAMPS Mnemonic
C - Cryoglobulinemia (85%), C3 glomerulopathy, cirrhosis
H - Heavy Chain deposition
Causes of Hypocomplementemia ... Chain deposition disease ... @AnnKumfer #Hypocomplementemia ... #Low #Complement
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
often involved • Hypocomplementemic ... Urticaria and hypocomplementemia ... (Granulomatous disease ... against MPO • Complement ... (Low levels mixed
Workup of Hypercalcemia - Differential Diagnosis Algorithm
High or Normal PTH:
 • Hyperparathyroidism: Parathyroid adenoma, Parathyroid hyperplasia,
Workup of Hypercalcemia ... Differential Diagnosis Algorithm ... Hypercalcemia Low ... PTHrP: - Low ... #Workup #nephrology
Hyperthyroidism (low TSH, High T4/T3) - Diagnostic Algorithm

Radioactive iodine scan – get if concern for nodular
Hyperthyroidism (low ... ) - Diagnostic Algorithm ... affects diagnostic workup ... Hyperthyroid #Diagnosis #Algorithm ... #Workup #Endocrinology
IgG4-Related Disease
Clinical history:  Man, 60 years, multiorgan involvement, unique or multiple inflammatory pseudotumor
4 phenotypes:
 •
IgG4-Related Disease ... rheumatoid factor), ± hypocomplementemia ... IgG4 #Related #Disease ... management #phenotypes #workup
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 ... involvement: Anti-GBM Disease ... differential #diagnosis #algorithm
Approach to the Diagnosis of Hyperthyroidism - Differential Diagnosis and Workup Algorithm

 • Secondary Hyperthyroidism (↑↔TSH,
Diagnosis and Workup ... Algorithm • ... • Low iodine ... trophoblastic disease ... Iodine Scan - Low
Systemic Lupus Erythematosus (SLE) - Diagnosis and Management Summary
 • Epidemiology: 10-180/100,000, Typically Age 20-40, F:M
• Immunologic Workup ... 60-80% - Low ... complement - 50 ... Evolution: Chronic disease
Pancytopenia - Workup and Differential Diagnosis Algorithm
Consumption Disorders
 1. Autoimmune Mediated Pancytopenia
 2. Splenic Sequestration
Peripheral Destruction
Pancytopenia - Workup ... Differential Diagnosis Algorithm ... Production - Flow ... Metastatic Disease ... #Pancytopenia #Workup
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
• Immunologic Workup ... in >90% - Low ... complement - Rare ... complement - 50 ... Evolution: Chronic disease