15 results
Causes of Vitamin B12 Deficiency - Cobalamin
Decreased Intake
Pancreas: Insufficiency
Intestine: SIBO, Celiac disease, IBD, Lymphoma, Amyloidosis, Resection,
Causes of Vitamin ... Celiac disease, IBD ... Stomach: Pernicious anemia ... #Cobalamin #differential ... #diagnosis #causes
Causes of Iron Deficiency
 • Diet: ↓ Intake, e.g. vegan, Malnutrition, Polyphenol / tannins, ↓ Vitamin
Causes of Iron Deficiency ... Inflammation: IBD ... drkeithsiau #Iron #Deficiency ... #Causes #differential ... #diagnosis #anemia
Causes of Iron Deficiency
 • Inadequate Intake: Vegetarian/vegan diet, Malnutrition
 • Increased Body Needs: Infants/preschoolers, Pregnancy,
Causes of Iron Deficiency ... Loss (without anaemia ... Inflammatory Disease (IBD ... #differential # ... diagnosis #causes
Causes of Thrombocytosis - Differential Diagnosis Algorithm
Spurious:
 • Artifact (redo CBC)
Autonomous:
 • Essential thrombocytosis
 • Polycythemia
- Differential ... Diagnosis Algorithm ... Inflammatory: • IBD ... malignancy • Iron deficiency ... anemia #Thrombocytosis
Fatigue and IBD Algorithm
 • 40-50% patients have fatigue despite clinical remission
 • Risk factors: BMI,
Receptor (sTfR) to differentiate ... restricted diet/deficiency ... /other causes • ... #Algorithm #diagnosis ... #management
Bronchiectasis: diagnosis and management 

Causes of localized -> diffuse bronchiectasis
Foreign body, Bronchial stenosis (tumor, .. ),
and management ... Causes of localized ... dyskinesia, A1AT deficiency ... #management #Differential ... #workup #algorithm
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
Approach to Thrombocytosis - Elevated Platelet Count - Differential Diagnosis Algorithm

Peripheral Smear concerning for malignancy?
Diagnosis Algorithm ... hematology for workup ... Acute hemolysis, deficiency ... anemia, Rebound ... Vasculitides, IBD
Major neurocognitive disorders (MNCD): Diagnosis and workup 

1) Clinical diagnosis Cognitive impairment + loss of autonomy
2)
Whipple, vitamin deficiency ... Alzheimer - 1st cause ... - Progressive amnesia ... Dementia - 2nd cause ... MNCD #Dementia #Differential
Vitamin B12 (Cobalamin) Deficiency
Etiology:
 • Vit B12 - aka cobalamin. Present in foods derived from animal
B12 (Cobalamin) Deficiency ... • Common Causes ... diarrhea related to IBD ... consider other diagnosis ... #diagnosis #management