20 results
Approach to Thrombocytosis - Elevated Platelet Count - Differential Diagnosis Algorithm

Peripheral Smear concerning for malignancy?
→ Refer to hematology ... for workup, including ... blood loss, Acute hemolysis ... : Chronic infections ... #hematology
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
Diagnostic Framework ... e.g. lupus, CLL, lymphoma ... idiopathic) - Autoimmune ... Extravascular #Causes #differential ... #diagnosis #hematology
Pancytopenia - Differential Diagnosis

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

Cancer:
• Leukemia
• Lymphoma

Inflammatory
• Leukemia • Lymphoma ... Inflammatory and Autoimmune ... Antibody-mediated hemolysis ... deficiency Infections ... #Diagnosis #Hematology
Causes of Thrombocytosis - Differential Diagnosis
Secondary Thrombocytosis (a.k.a Reactive Thrombocytosis):
 • Acute infection
 • Solid organ
Diagnosis Secondary ... Thrombocytosis): • Acute infection ... iron deficiency, hemolysis ... disorders (e.g. autoimmune ... #hematology #secondary
Hemolytic Anemia - Differential Diagnosis Algorithm
 • Sickle cells - Consider sickle cell disease (diverse genotypes):
- Differential ... Diagnosis Algorithm ... inclusions - If infection ... elliptocytosis, autoimmune ... #workup #hematology
Causes of Neutropenia - Differential Diagnosis
Neonate:
 - Infection - by far the most common cause
 -
- Differential ... Diagnosis Neonate ... hypertension and/or drug treatment ... - Autoimmune neutropenia ... #hematology
Reticulocyte Production Index = (Retic %) x (Hct / 45) / Maturation Factor
The maturation factor is
: Autoimmune, Microangiopathic ... hemolytic anemia ... Production #Index #hematology ... #anemia #differential ... #diagnosis #calculation
Red Blood Cell (RBC) Morphology
Microcytic RBC: Pyridoxine deficiency, Thalassemia, Iron deficiency anemia, Chronic disease anemia (sometimes),
spherocytosis, Autoimmune ... IgM associated lymphoma ... disease, Malignant lymphoma ... RBC #Morphology #differential ... #diagnosis #hematology
Chronic Lymphocytic Leukemia (CLL) - Summary
Overview: 
 • Most common leukemia in adults
 • Disorder of
Chronic Lymphocytic ... Complications: 1) Infection ... neutropenia) ... to large cell lymphoma ... Leukemia #oncology #hematology
Cold Agglutinin Disease

3 Types of Cold Sensitive Antibodies:
  1. Cold Agglutinins (CAD)
  2. Donath-Landsteiner
, autoimmune disorder ... or lymphoid malignancy ... Diagnosis: • hemolytic ... younger pts) Differential ... #anemia #hematology