13 results
Vasculitis - Break down based on vessel size 
Distribution of vessel involvement by large vessel vasculitis,
Medium vessel vasculitis ... arteries. ... arteries and veins ... can affect any type ... #Large #Classification
A System for Vasculitides 

#Diagnosis #IM #Rheum #Vasculitis #Small #Medium #Large #Vessel #Size #Classification #ANCA #Differential
A System for Vasculitides ... Diagnosis #IM #Rheum #Vasculitis ... #Small #Medium ... #Vessel #Size #Classification ... #Differential #Algorithm
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
Urticaria and hypocomplementemia ... + MPO-ANCA MEDIUM ... aortic aneurysm • Medium ... against MPO • Complement ... #rheumatology #classification
Classification of Vasculitis 
Vasculitis of large vessels 
 - Arteritis temporalis (giant-cell arteritis) 
 - Takayasu
Classification of ... large vessels - Arteritis ... - Takayasu arteritis ... of medium vessels ... dermatomyositis #Size #Classification
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
Types: • Type ... arthralgia, and arthritis ... • Low serum C4 complement ... SLE), rheumatoid arthritis ... #classification
Hypersensitivity Types and Their Mechanisms
Type I - lgE - Soluble antigen
 - Allergen-specific lgE antibodies bind
Hypersensitivity Types ... antigen, leading to complement ... Complement activation ... glomerulonephritis, rheumatoid arthritis ... #Classification
Summary table of types of hypersensitivity reactions. 
Type 1
 - Mediators: lgE
 - Antigen Form: Soluble
Summary table of types ... antigens, leading to complement ... they activate complement ... Examples: Rheumatoid arthritis ... allergy #table #classification
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
GCA (Giant Cell Arteritis ... primary condition MEDIUM ... and often causes arthritis ... Elevated AST ALT • Hypocomplementemia ... ) • Hypocomplementemic
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
anti-Smith Ab, low complements ... Skin Disease Classification ... ANCA-associated vasculitis ... Kikuchi disease • Type-I ... RNP antibodies, Complement
Sjogren's Syndrome Overview

Epidemiology:
• F > M: 9:1
• 5-6th Decades (can be any age)

Autoimmune exocrinopathy multisystemic disease
Cytopenia: 2% • Hypocomplementemia ... IV RTA, TYPE I ... ) • Cutaneous vasculitis ... : 2% Systemic Vasculitis ... Arthralgia and Arthritis