11 results
Causes of Vitamin B12 Deficiency - Cobalamin
Decreased Intake
Pancreas: Insufficiency
Intestine: SIBO, Celiac disease, IBD, Lymphoma, Amyloidosis, Resection,
B12 Deficiency ... Intestine: SIBO, Celiac ... disease, IBD, Lymphoma ... #Deficiency #Cobalamin ... #differential #
Causes of Iron Deficiency
 • Diet: ↓ Intake, e.g. vegan, Malnutrition, Polyphenol / tannins, ↓ Vitamin
Causes of Iron Deficiency ... Inflammation: IBD ... #Deficiency #Causes ... #differential # ... diagnosis #anemia
Suspected Celiac Disease - Diagnosis Algorithm

Celiac disease suspected:
 • Signs and symptoms of celiac disease
 •
disease • Iron-deficiency ... anemia unresponsive ... without discernable cause ... microscopic colitis Differential ... Inflammatory (IBD
Causes of Iron Deficiency
 • Inadequate Intake: Vegetarian/vegan diet, Malnutrition
 • Increased Body Needs: Infants/preschoolers, Pregnancy,
Causes of Iron Deficiency ... Loss (without anaemia ... Bleeding, Edema, Celiac ... Inflammatory Disease (IBD ... #Deficiency #differential
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 ... Crohn 's disease, coeliac ... #differential #
Vitamin B12 (Cobalamin) Deficiency
Etiology:
 • Vit B12 - aka cobalamin. Present in foods derived from animal
Vitamin B12 (Cobalamin ... • Common Causes ... pain, diarrhea ... celiac disease, ... #Cobalamin #Deficiency
Causes of Thrombocytosis - Differential Diagnosis Algorithm
Spurious:
 • Artifact (redo CBC)
Autonomous:
 • Essential thrombocytosis
 • Polycythemia
- Differential ... Inflammatory: • IBD ... disorders • Celiac ... malignancy • Iron ... deficiency anemia
Causes of Copper Deficiency - Differential Diagnosis
Hereditary: 
 - Menkes disease, familial hypoceruloplasminemia
Decreased / Inadequate Intake:
Causes of Copper ... Deficiency - Differential ... include inflammatory bowel ... Crohn's disease, Celiac ... supplementation) or iron
Chronic Abdominal Pain Causes - Differential Diagnosis Framework

Many patients with chronic abdominal pain have had prior
- Differential ... • Vomiting, diarrhea ... Family history of IBD ... #Differential # ... Diagnosis #gastroenterology
Occult and Lower Gastronintestinal Bleed - Differential Diagnosis Algorithm

Occult (Stool + Occult blood and/or iron deficiency
Gastronintestinal Bleed - Differential ... Occult blood and/or iron ... deficiency anemia ... , asymptomatic IBD ... Diagnosis #Algorithm #Causes