13 results
Hypersensitivity: Summary
Type I Hypersensitivity:
 • Immunological Mediator: lgE
 • Immunological Target: Allergen Molecules
 • Ex: Antibiotic
Hypersensitivity ... Target: Modified cell ... Immunological Mediator: Th Cells ... #Allergy #Allergic ... Reactions #Types #Classification
Hypersensitivity Types and Their Mechanisms
Type I - lgE - Soluble antigen
 - Allergen-specific lgE antibodies bind
Hypersensitivity ... , and drug allergies ... sclerosis #Hypersensitivity ... #Types #Classification ... Diagnosis #Reactions #Table
Summary table of types of hypersensitivity reactions. 
Type 1
 - Mediators: lgE
 - Antigen Form: Soluble
Summary table of ... types of hypersensitivity ... , Drug allergies ... Graft rejection #hypersensitivity ... #table #classification
Hypersensitivity: Definitions
 • Type I - Production of lgE Abs that bind to harmless allergens and
Hypersensitivity ... activate mast cell ... T-Cell response ... #Hypersensitivity ... Reactions #Types #Classification
Types of hypersensitivity reactions

Type I - lgE-Mediated, Within I Hour (Anaphylaxis)
Type II - IgG or IgM
Types of hypersensitivity ... Sickness) Type IV T-Cell-Mediated ... happypillsrx/ #hypersensitivity ... reactions #Types #Classification ... #Allergy #Diagnosis
Eosinophilia - Differential Diagnosis Algorithm
Idiopathic Eosinophilia
Primary Eosinophilia:
 • Primary hypereosinophilic syndrome
 • Eosinophilic Leukemia
 • MPN/MDS
Differential Diagnosis Algorithm ... histiocytosis • Allergic ... , Eczema, Drug Hypersensitivity ... Differential #Diagnosis #Algorithm ... #allergy
Classification of Vasculitis 
Vasculitis of large vessels 
 - Arteritis temporalis (giant-cell arteritis) 
 - Takayasu
Classification of ... temporalis (giant-cell ... granulomatosis - microscopic ... vasculitis - hypersensitivity ... dermatomyositis #Size
Lymphomas and Lymphoproliferative Disorders - Differential Diagnosis Algorithm
Hodgkin Lymphoma ~40% - Characteristic For Reed-Sternberg (RS) Cells
Differential Diagnosis Algorithm ... usually at a single site ... ~10% - B-Cell ... Lymphoproliferative #Disorders #Classification ... #differential #algorithm
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
Hypersensitivity ... nodules of the same size ... Hypersensitivity ... Langerhans cell ... Differential #Comparison #Table
Causes of Hematuria - Differential Diagnosis Algorithm
Red blood cells on urine microscopy. Must exclude false positives
Differential Diagnosis Algorithm ... Red blood cells ... on urine microscopy ... with polyangiitis/microscopic ... Differential #Diagnosis #Algorithm