373 results
Causes of Vitamin B12 Deficiency - Cobalamin
Decreased Intake
Pancreas: Insufficiency
Intestine: SIBO, Celiac disease, IBD, Lymphoma, Amyloidosis, Resection,
Causes of Vitamin ... B12 Deficiency ... Celiac disease, IBD ... #Cobalamin #differential ... #diagnosis #causes
Fatigue and IBD Algorithm
 • 40-50% patients have fatigue despite clinical remission
 • Risk factors: BMI,
• Prevalence Crohn's ... Receptor (sTfR) to differentiate ... restricted diet/deficiency ... /other causes • ... #Algorithm #diagnosis
IBD - Assessment of Lack of Response (sLOR) - Differential Diagnosis
Non-inflammatory mechanisms:
 • IBS
 • Fibrostenotic
IBD - Assessment ... Response (sLOR) - Differential ... Diagnosis Non-inflammatory ... LossOfResponse #Differential ... #Diagnosis #Causes
Causes of Erythema Nodosum - Mnemonic

NO cause found in 60% of cases
Drugs (antibiotics e.g., sulfonamides, amoxicillin)
Oral
Causes of Erythema ... Mnemonic NO cause ... Ulcerative Colitis, Crohns ... #Differential # ... Diagnosis #Dermatology
Causes of Iron Deficiency
 • Inadequate Intake: Vegetarian/vegan diet, Malnutrition
 • Increased Body Needs: Infants/preschoolers, Pregnancy,
Causes of Iron Deficiency ... Inflammatory Disease (IBD ... cancer) #Iron #Deficiency ... #differential # ... diagnosis #causes
Causes of Fat Malabsorption - Differential Diagnosis
Biliary Duct Obstruction
 • Autoimmune— PBC, PSC
 • Infection— liver
- Differential ... • Autoimmune— Crohn's ... Pancreatic lipase deficiency ... Celiac disease • IBD ... #Diagnosis #Causes
Causes of Thrombocytosis - Differential Diagnosis Algorithm
Spurious:
 • Artifact (redo CBC)
Autonomous:
 • Essential thrombocytosis
 • Polycythemia
Causes of Thrombocytosis ... - Differential ... Diagnosis Algorithm ... Inflammatory: • IBD ... malignancy • Iron deficiency
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
Gastrointestinal Causes of Iron Deficiency Anemia
 • Mass lesions: Carcinoma, Large polyps
 • Inflammatory: Reflux esophagitis,
Gastrointestinal Causes ... of Iron Deficiency ... Idiopathic ulcers, Crohn's ... #differential # ... diagnosis
Chronic Diarrhea Differential Diagnosis
 • Inflammatory, Infectious: Recurrent C. diff, Giardiasis
 • Inflammatory, Non-infectious: IBD, Ischemia,
Chronic Diarrhea Differential ... Diagnosis • Inflammatory ... Non-infectious: IBD ... Diarrhea #Chronic #Differential ... #Diagnosis #causes