46 results
Causes of Vitamin B12 Deficiency - Cobalamin
Decreased Intake
Pancreas: Insufficiency
Intestine: SIBO, Celiac disease, IBD, Lymphoma, Amyloidosis, Resection,
Causes of Vitamin ... B12 Deficiency ... Stomach: Pernicious anemia ... #Deficiency #Cobalamin ... #differential #diagnosis
Causes of Low Vitamin B12 Levels
Low vitamin B12 intake - Vegetarianism, chronic alcoholism and older people
Autoimmune
Causes of Low Vitamin ... B12 Levels Low ... vitamin B12 intake ... and Sjögren's syndrome ... #differential #diagnosis
Clinically Important Vitamins and Vitamin Deficiency States
Fat-soluble Vitamins: 
 • Vitamin A - Xerophthalmia, night blindness,
Clinically Important ... Vitamins and Vitamin Deficiency ... Wernicke-Korsakoff syndrome ... #differential #diagnosis ... signs #symptoms #nutrition
Vitamin B12 (Cobalamin) Deficiency
Etiology:
 • Vit B12 - aka cobalamin. Present in foods derived from animal
Vitamin B12 (Cobalamin ... • Common Causes ... intrinsic factor, IF) Clinical ... #Cobalamin #Deficiency ... #nutrition
Wernicke Encephalopathy - Acute B1 (Thiamine) Deficiency - Diagnosis and Management
Diagnosis - Caine Criteria (2 of
- Diagnosis and ... Management Diagnosis ... development of Korsakoff syndrome ... (chronic B1 deficiency ... #neurology #nutrition
Causes of Neutropenia with Pancytopenia - Differential Diagnosis Algorithm
Sequestration:
 • Splenomegaly
Marrow Infiltration:
 • Hematologic and non-hematologic
Causes of Neutropenia ... Toxins • Aplastic Anemia ... Myelodysplasia Nutritional ... deficiency: • ... B12/folate/combined
Algorithm for the evaluation of macrocytic anemia. (RBC = red blood cell; MMA = methylmalonic acid.)
Physicians
the most likely cause ... recovery also causes ... of the initial work-up ... deficiency. ... #Diagnosis #Macrocytosis
Causes of Anemia with elevated Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Normal Blood Smear
 •
Causes of Anemia ... - Differential Diagnosis ... • Dietary Deficiency ... Myelodysplastic Syndromes ... #Algorithm #Causes
Pancytopenia - Differential Diagnosis

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

Cancer:
• Leukemia
• Lymphoma

Inflammatory
- Differential Diagnosis ... • Fanconi’s anemia ... Wiskott-Aldrich syndrome ... Antibody-mediated hemolysis Nutritional ... consumption • Vitamin B12
Diagnostic Framework for Anemia (Morphological Approach - MCV)
Low MCV - <80fL - "Microcytic"
 • Iron deficiency
Diagnostic Framework ... Megaloblastic: Vitamin B12 ... Myelodysplastic syndrome ... #differential #diagnosis ... #causes #hematology