12 results
Causes of Hypocomplementemia - CHAMPS Mnemonic
C - Cryoglobulinemia (85%), C3 glomerulopathy, cirrhosis
H - Heavy Chain deposition
Causes of Hypocomplementemia ... 1 (50%-80%), type ... glomerulonephritis (>90%) S - Systemic ... #Low #Complement ... #differential #hematology
Hypersensitivity Types and Their Mechanisms
Type I - lgE - Soluble antigen
 - Allergen-specific lgE antibodies bind
- Local and systemic ... Complement activation ... arthritis, and systemic ... #Classification ... Diagnosis #Reactions #Table
EULAR/ACR Classification Criteria for Systemic Lupus Erythematosus
Clinical Domains:
 • Constitutional domain: Fever
 • Cutaneous domain: Non-scarring
EULAR/ACR Classification ... Criteria for Systemic ... pericarditis • Hematologic ... anticoagulant • Complement ... Criteria #SLE #Systemic
Summary table of types of hypersensitivity reactions. 
Type 1
 - Mediators: lgE
 - Antigen Form: Soluble
Summary table of ... they activate complement ... glomerulonephritis, Systemic ... #allergy #table ... #classification
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
activate the immune system ... factor level • Low ... serum C4 complement ... #classification ... #rheumatology #
Lymphomas and Lymphoproliferative Disorders - Differential Diagnosis Algorithm
Hodgkin Lymphoma ~40% - Characteristic For Reed-Sternberg (RS) Cells
site in lymphatic system ... with lymphatic system ... B-Cell ~90% • Low ... Lymphoproliferative #Disorders #Classification ... pathophysiology #Hematology
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 ... #classification
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
in >90% - Low ... complement - Rare ... months to years) Systemic ... sle #comparison #table ... #rheumatology #
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
anti-Smith Ab, low ... complements and ... Skin Disease Classification ... Kikuchi disease • Type-I ... , lymphopenia, low
Classification for benign biliary strictures
Bismuth classification
I - Low CHD stricture, > 2 cm distal to hilum
II
I - Low CHD stricture ... right ducts V - Type ... continuity with biliary system ... continuity with biliary system ... strictures #diagnosis #hepatology