31 results
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Purpura - Differential ... SLE) - Viral infections ... Kasabach-Merritt syndrome ... #Diagnosis #hematology ... #rheumatology #
Causes of Thrombocytopenia - Differential Diagnosis Algorithm
 
Decreased Megakaryopoiesis
 • Aplastic Anemia
 • Toxic Damage (e.g.
Causes of Thrombocytopenia ... - Differential ... Non-lmmune: • HELLP Syndrome ... Vasculitis • Infection ... #Hematology
Causes of Thrombocytosis - Differential Diagnosis
Secondary Thrombocytosis (a.k.a Reactive Thrombocytosis):
 • Acute infection
 • Solid organ
Causes of Thrombocytosis ... - Differential ... Thrombocytosis): • Acute infection ... Myelodysplastic syndrome ... #hematology #secondary
Myelodysplastic Syndrome (MD) - Diagnosis and Management Summary
myelo (marrow) -dys- (abnormal) -plastic (shape) = funny-shaped cells
Myelodysplastic Syndrome ... old, ~10,000 new cases ... risk-stratification • Risks: infection ... Myelodysplastic #Syndrome ... #treatment #hematology
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
Extravascular Causes ... ) - HELLP syndrome ... Hemolytic uremic syndrome ... #differential # ... diagnosis #hematology
Causes of Thrombocytopenia - Differential Diagnosis Framework
Decreased Production:
 - Drugs (chemo, yang, sulfa, acetaminophen, NSAIDs, quinine,
Causes of Thrombocytopenia ... - Differential ... infiltration: malignancy, infection ... antiphospholipid syndrome ... Diagnosis #Framework #hematology
Aortitis - Differential Diagnosis Framework
Non-Infectious Aortitis:
 • Vasculitides: Giant Cell Arteritis (GCA), Takayasu's arteritis, Cogan's Syndrome,
Aortitis - Differential ... Framework Non-Infectious ... arteritis, Cogan's Syndrome ... rare), Idiopathic Infectious ... #Diagnosis #rheumatology
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
DDX - Other causes ... : • Nephrotic syndrome ... (Epstein-Barr syndrome ... hypogammaglobulinemia #immunology #hematology ... #diagnosis #management
Causes of Neutropenia - Differential Diagnosis
Neonate:
 - Infection - by far the most common cause
 -
- Differential ... neutropenia, Kostmann syndrome ... Chediak-Higashi syndrome ... #Neutropenia #differential ... #hematology
Hypereosinophilia Syndrome (HES) - Diagnosis and Management
Definition: An absolute eosinophil count (AEC) greater than 1500 and
Hypereosinophilia Syndrome ... eosinophilia Secondary Causes ... hypersensitivity - Infection ... eosinophilia #diagnosis #hematology ... #differential #