37 results
Causes of Vitamin B12 Deficiency - Cobalamin
Decreased Intake
Pancreas: Insufficiency
Intestine: SIBO, Celiac disease, IBD, Lymphoma, Amyloidosis, Resection,
Deficiency - Cobalamin ... Stomach: Pernicious anemia ... #Deficiency #Cobalamin ... #differential # ... diagnosis #causes
Anemia - Underproduction Diagnostic Algorithm
 - Iron deficiency anemia
 - Anemia of chronic inflammation
 - Anemia
Diagnostic Algorithm ... disease - Vitamin B12 ... Underproduction #Algorithm #hematology ... #diagnosis #differential ... #workup
Causes of Anemia by Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Low Mean Corpuscular Volume (<80
Diagnosis Algorithm ... Low Mean Corpuscular ... (>100 fL) • B12 ... #MCV #Classification ... #Causes #Hematology
Causes of Low Vitamin B12 Levels
Low vitamin B12 intake - Vegetarianism, chronic alcoholism and older people
Autoimmune
B12 Levels Low ... vitamin B12 intake ... #low #cobalamin ... #differential # ... diagnosis
Approach to Hypoproliferative Macrocytic Anemia

 • 812, Folate Deficiency
 • MDS+
 • Hypothyroid
 • Liver Disease
812, Folate ... Deficiency • ... #differential # ... diagnosis #algorithm ... #hematology #workup
Causes of Anemia with elevated Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Normal Blood Smear
 •
Volume (MCV) - Differential ... Diagnosis Algorithm ... • Dietary Deficiency ... - Low Serum B12 ... #Causes #Hematology
Causes of Neutropenia with Pancytopenia - Differential Diagnosis Algorithm
Sequestration:
 • Splenomegaly
Marrow Infiltration:
 • Hematologic and non-hematologic
Pancytopenia - Differential ... Diagnosis Algorithm ... Toxins • Aplastic Anemia ... Myelodysplasia Nutritional deficiency ... : • B12/folate
Overall Approach to Anemia - Differential Diagnosis Algorithm

Blood Loss
 • Acute Bleed - Normocytic / Normochromic
- Differential ... Diagnosis Algorithm ... • B12/Folate ... #Classification ... #Causes #Hematology
Vitamin B12 (Cobalamin) Deficiency
Etiology:
 • Vit B12 - aka cobalamin. Present in foods derived from animal
Vitamin B12 (Cobalamin ... ) Deficiency Etiology ... consider other diagnosis ... #Cobalamin #Deficiency ... #diagnosis #management
Diagnostic Framework for Anemia (Morphological Approach - MCV)
Low MCV - <80fL - "Microcytic"
 • Iron deficiency
Diagnostic Framework ... Approach - MCV) Low ... Megaloblastic: Vitamin B12 ... morphologic #mcv #differential ... #hematology