19 results
Causes of Anemia by Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Low Mean Corpuscular Volume (<80
Volume (MCV) - Differential ... • Bleeding • Hemolysis ... (>100 fL) • B12 ... #MCV #Classification ... #Differential #
Red Blood Cell (RBC) Morphology
Microcytic RBC: Pyridoxine deficiency, Thalassemia, Iron deficiency anemia, Chronic disease anemia (sometimes),
Macrocytic RBC: Vitamin B12 ... Microangiopathic Hemolytic ... Cold autoimmune hemolytic ... RBC #Morphology #differential ... #diagnosis #hematology
Algorithmic Approach to Anemia - Differential Diagnosis Framework by MCV

Microcytic (MCV < 80) "TAILS":
 • Thalassemia
- Differential ... , CKD • Hemolytic ... Folate deficiency, B12 ... Non-megaloblastic: Liver disease ... #Diagnosis #hematology
Hemolytic Anemia - Differential Diagnosis Algorithm
 • Sickle cells - Consider sickle cell disease (diverse genotypes):
Hemolytic Anemia ... - Differential ... ): SS, SC, SE, Sβ ... #Anemia #Differential ... Algorithm #workup #hematology
Pancytopenia - Differential Diagnosis

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

Cancer:
• Leukemia
• Lymphoma

Inflammatory
Congenital Diseases ... deficiency • Fanconi’s anemia ... Antibody-mediated hemolysis ... consumption • Vitamin B12 ... #Diagnosis #Hematology
Differential Diagnosis for Hemolytic Anemia
Intrinsic Causes:
 • Enzyme deficiencies ex. G6PD, pyruvate kinase 
 • Hemoglobinopathies
for Hemolytic Anemia ... Causes: • Liver disease ... #Anemia #Differential ... Diagnosis #causes #classification ... #hematology
Reticulocyte Production Index = (Retic %) x (Hct / 45) / Maturation Factor
The maturation factor is
loss), Vitamin B12 ... Chronic kidney disease ... Microangiopathic hemolytic ... Production #Index #hematology ... #anemia #differential
Overall Approach to Anemia - Differential Diagnosis Algorithm

Blood Loss
 • Acute Bleed - Normocytic / Normochromic
- Differential ... Deficiency • B12 ... Disease • Marrow ... #Classification ... Algorithm #Causes #Hematology
Systemic Lupus Erythematosus - Diagnosis
Manifestations:
 - Arthritis 69%
 - Malar rash 40%
 - Fever 36%
 -
- Neurological 12% ... Lymphadenopathies 7% - Hemolytic ... anemia 4% - Myositis ... Lupusreference #SLE ... #rheumatology
Approach to Thrombocytosis - Elevated Platelet Count - Differential Diagnosis Algorithm

Peripheral Smear concerning for malignancy?
Platelet Count - Differential ... blood loss, Acute hemolysis ... , deficiency anemia ... Rebound effect from treatment ... Vasculitides, IBD, Celiac disease