1798 results
Causes of Vitamin B12 Deficiency - Cobalamin
Decreased Intake
Pancreas: Insufficiency
Intestine: SIBO, Celiac disease, IBD, Lymphoma, Amyloidosis, Resection,
Causes of Vitamin ... B12 Deficiency ... : SIBO, Celiac disease ... Deficiency #Cobalamin #differential ... #diagnosis #causes
Demyelinating Diseases - Differential Diagnosis
 • Inflammatory: MS, ADEM, NMO, Paraneoplastic, Sjogren's, Polyarteritis nodosa, SLE
 •
Demyelinating Diseases ... - Differential ... Other: Vitamin B12 ... #Differential # ... Diagnosis #causes
Causes of Anemia with elevated Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Normal Blood Smear
 •
Causes of Anemia ... Volume (MCV) - Differential ... • Pancreatic Disease ... • Liver Disease ... #elevatedMCV #Differential
Causes of Anemia by Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Low Mean Corpuscular Volume (<80
Causes of Anemia ... Volume (MCV) - Differential ... (>100 fL) • B12 ... Classification #Differential ... Diagnosis #Algorithm #Causes
Causes of Dementia / Cognitive Impairment - Differential Diagnosis Algorithm

Affecting Multiple Domains
 • Depression
 • Delirium
Decline
Causes of Dementia ... Cognitive Impairment - Differential ... Subdural Hematoma • B12 ... • Parkinson's Disease ... Dementia #Neurology #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 ... , coeliac disease ... low #cobalamin #differential
Overall Approach to Anemia - Differential Diagnosis Algorithm

Blood Loss
 • Acute Bleed - Normocytic / Normochromic
Approach to Anemia - Differential ... Deficiency • B12 ... Anemia of Chronic Disease ... Classification #Approach #Differential ... Diagnosis #Algorithm #Causes
Diagnostic Framework for Anemia (Morphological Approach - MCV)
Low MCV - <80fL - "Microcytic"
 • Iron deficiency
chronic kidney disease ... Megaloblastic: Vitamin B12 ... Alcohol use, Liver disease ... morphologic #mcv #differential ... #diagnosis #causes
Fatigue and IBD Algorithm
 • 40-50% patients have fatigue despite clinical remission
 • Risk factors: BMI,
Receptor (sTfR) to differentiate ... Monitor & correct B12 ... (B12, MMA) for ... fatigue despite disease ... /other causes
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
Leg Pain - Differential ... Legg-Calve-Perthes disease ... Neuropathy (DM, Vit B12 ... - HIV - Lyme disease ... #Leg #pain #differential