27 results
Hypersensitivity Types and Their Mechanisms
Type I - lgE - Soluble antigen
 - Allergen-specific lgE antibodies bind
to complement activation ... Complement activation ... #Classification ... #Pathophysiology ... Allergy #Diagnosis #Reactions
Summary table of types of hypersensitivity reactions. 
Type 1
 - Mediators: lgE
 - Antigen Form: Soluble
hypersensitivity reactions ... Allergen-specific lgE causes ... to complement activation ... Acute transfusion reaction ... #table #classification
Infographic depicting the main pearls of various types of congenital adrenal hyperplasia for the medical student.
pearls of various types ... #CAH #algorithm ... #causes #pediatrics ... diagnosis #comparison #treatment ... Endocrinology #Adrenal #pathophysiology
Anaphylaxis: Pathogenesis
Anaphylaxis is a Type 1 hypersensitivity reaction
While the primary mechanism of anaphylaxis is mast cell
Anaphylaxis is a Type ... hypersensitivity reaction ... anaphylaxis is mast cell activation ... cells • ANS activation ... #Anaphylaxis #pathophysiology
Hypersensitivity: Definitions
 • Type I - Production of lgE Abs that bind to harmless allergens and
Definitions • Type ... cell surfaces causes ... exposure to allergen causes ... because T-Cell activation ... #Types #Classification
Hemolysis Classification - Intrinsic and Extrinsic Causes

Commentary: Another way to think of immune hemolysis would be
Hemolysis Classification ... and Extrinsic Causes ... hemolytic transfusion reactions ... #Hemolysis #Classification ... #Algorithm
Type IV Hypersensitivity: Pathogenesis and clinical findings
Definition: Unique because it is entirely T-Cell mediated; exposure to
Type IV Hypersensitivity ... exposure to allergen causes ... Allergic reaction ... because T-Cell activation ... Allergy #Immunology #pathophysiology
Angioedema - Classification Diagnosis and Treatment
Types of Angioedema:
 • Acute allergic angioedema - Usually occurs with
Angioedema - Classification ... Types of Angioedema ... Non-allergic drug reaction ... cell-mediated in > 90% of cases ... #Types #Diagnosis
TRALI vs TACO - Transfusion Reactions
TRALI:
 • Epidemiology: 0.1% of transfused patientsl
 • Risk factors: Critical
- Transfusion Reactions ... blood donor • Pathophysiology ... sequestration and activation ... : 33% • Treatment ... : No • Treatment
Lymphomas and Lymphoproliferative Disorders - Differential Diagnosis Algorithm
Hodgkin Lymphoma ~40% - Characteristic For Reed-Sternberg (RS) Cells
Differential Diagnosis Algorithm ... are present • Classic ... Responsive to Treatment ... Lymphoproliferative #Disorders #Classification ... #pathophysiology