9 results
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Purpura - Differential ... anemia - Splenomegaly ... deficiency • Liver ... Diagnosis #hematology ... #rheumatology #
Causes of Bleeding / Bruising - Differential Diagnosis Algorithm
Thrombocytopenia - Quantitative Defect
 • Decreased Production
 •
/ Bruising - Differential ... Thrombocytopenia ... Rare • Drugs (e.g ... Iatrogenic) • Liver ... #Causes #Hematology
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
microangiopathy: Thrombotic thrombocytopenic ... purpura (TTP), ... lymphoproliferative disorders ... #differential # ... diagnosis #hematology
Causes of Purpura or Easy Bruising in Children

Platelet count reduced, i.e. thrombocytopenia
 - Increased platelet destruction
Causes of Purpura ... - SLE (systemic ... Congenital heart disease ... #Bruising #Causes ... #differential #
Red Blood Cell (RBC) Morphology
Microcytic RBC: Pyridoxine deficiency, Thalassemia, Iron deficiency anemia, Chronic disease anemia (sometimes),
, Liver disease, ... Unstable hemoglobin disorders ... RBC #Morphology #differential ... #diagnosis #hematology ... #microscopy #atlas
Macrophage Activation Syndrome (MAS)
Classified among the secondary or acquired forms of haemophagocytic lymphohistiocytosis (sHLH)

What?
A subset of
Classified among the secondary ... (eg, systemic juvenile ... , and thrombocytopenia ... • Liver function ... #Hematology #Rheumatology
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
• Autoimmune diseases ... Type III Often Secondary ... (e.g. systemic ... #types #classification ... #rheumatology #
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
Immunodeficiency disorder ... infection risk secondary ... • Liver diseases ... anemia) • Systemic ... hypogammaglobulinemia #immunology #hematology
Myelodysplastic Syndromes (MDS)

What?
Myelodysplastic syndromes are a group of disorders caused by blood cells that are poorly
Easy or unusual bruising ... DDX: Rule Out Secondary ... CausesAnemia ... Myeloproliferative Disease ... #diagnosis #hematology