43 results
Algorithm for workup of thrombocytopenia based on observation of the peripheral blood film. 
TTP/HUS indicates thrombotic
purpura/hemolytic ... uremic syndrome ... , Hematology 2012 ... , p 193 #Diagnosis ... #Differential #
Differential diagnosis of schistocytes / fragmentation hemolysis:
 • Thrombotic microangiopathies (TMA)
    - TTP
Differential diagnosis ... syndrome (ST-HUS ... • Severe B12 deficiency ... anemia" • HELLP syndrome ... #diagnosis #hematology
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
Diagnostic Framework ... microangiopathy: Thrombotic thrombocytopenic ... G6PD deficiency) ... #differential # ... diagnosis #hematology
Causes of Thrombocytopenia - Differential Diagnosis Algorithm
 
Decreased Megakaryopoiesis
 • Aplastic Anemia
 • Toxic Damage (e.g.
Causes of Thrombocytopenia ... - Differential ... Diagnosis Algorithm ... Non-lmmune: • HELLP Syndrome ... #Causes #Hematology
Causes of Extravascular and Intravascular Hemolysis - Differential Diagnosis Algorithm
Extravascular - Spleen and RES-mediated hemolysis
 -
Causes of Extravascular ... - Differential ... Diagnosis Algorithm ... • PK deficiency ... #Causes #Hematology
Causes of Thrombocytosis - Differential Diagnosis Algorithm
Spurious:
 • Artifact (redo CBC)
Autonomous:
 • Essential thrombocytosis
 • Polycythemia
- Differential ... Diagnosis Algorithm ... following EtOH induced thrombocytopenia ... malignancy • Iron deficiency ... #Causes #Hematology
Red Blood Cell (RBC) Morphology Atlas
 • Microcytic - Iron-deficiency anemia, Thalassemia, Sideroblastic anemia, Lead poisoning
, Pulmonary emboli ... Thrombotic idiopathic thrombocytopenia ... Morphology #Atlas #key #diagnosis ... #differential # ... hematology
Causes of Thrombocytosis - Differential Diagnosis
Secondary Thrombocytosis (a.k.a Reactive Thrombocytosis):
 • Acute infection
 • Solid organ
specifically: iron deficiency ... , hemolysis, hemorrhage ... Myelodysplastic syndrome ... #Diagnosis #Causes ... #hematology #secondary
Hemolytic Anemia - Differential Diagnosis Algorithm
 • Sickle cells - Consider sickle cell disease (diverse genotypes):
- Differential ... Diagnosis Algorithm ... Schistocytes, thrombocytopenia ... #Anemia #Differential ... #workup #hematology
Pancytopenia - Differential Diagnosis

Congenital Diseases:
• GATA2 deficiency
• Fanconi’s anemia
• Wiskott-Aldrich syndrome
• Ribosomopathy or telomeropathy

Cancer:
• Leukemia
• Lymphoma

Inflammatory
Pancytopenia - Differential ... Diagnosis Congenital ... Wiskott-Aldrich syndrome ... Antibody-mediated hemolysis ... #Diagnosis #Hematology