22 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 ... gastrectomy, H. pylori infection ... #Cobalamin #differential
Short Stature - Differential Diagnosis Algorithm
Normal Variant, Normal Puberty Onset (BA = CA)
 • Familial Short
Short Stature - Differential ... • IGF-I Deficiency ... Celiac, IBD) • ... CRF) • Infection ... endocrinology #causes
Causes of Fat Malabsorption - Differential Diagnosis
Biliary Duct Obstruction
 • Autoimmune— PBC, PSC
 • Infection— liver
Causes of Fat Malabsorption ... - Differential ... • Autoimmune— Crohn's ... Pancreatic lipase deficiency ... Celiac disease • IBD
Generalized Weakness - Differential Diagnosis Framework
"l feel weak":
 • Infectious: Influenza, EBV, PNA, Bacteremia, Sepsis
 •
Generalized Weakness - Differential ... CV/Resp/Heme: CHF ... valves, COPD, ILD ... Generalized #Weakness #Differential ... #Diagnosis #causes
Causes of Iron Deficiency
 • Inadequate Intake: Vegetarian/vegan diet, Malnutrition
 • Increased Body Needs: Infants/preschoolers, Pregnancy,
Causes of Iron Deficiency ... Pylori • Hookworm infection ... Inflammatory Disease (IBD ... #differential # ... diagnosis #causes
Fatigue and IBD Algorithm
 • 40-50% patients have fatigue despite clinical remission
 • Risk factors: BMI,
Fatigue and IBD ... UC Anemia and IBD ... IDA and active IBD ... fatigue w/ active IBD ... /other causes
Causes of Thrombocytosis - Differential Diagnosis Algorithm
Spurious:
 • Artifact (redo CBC)
Autonomous:
 • Essential thrombocytosis
 • Polycythemia
Causes of Thrombocytosis ... - Differential ... Myelofibrosis Infectious ... Inflammatory: • IBD ... malignancy • Iron deficiency
Iron Deficiency in Heart Failure
Pathophysiology:
Chronic heart failure leads to an increase in inflammatory cytokines → Inflammation
Iron Deficiency ... → Inflammation causes ... ng/mL (absolute ID ... 20% (functional ID ... #CHF #HFrEF #heartfailure
Aortitis - Diagnosis and Workup
Clinical History:
 - Fever, weight loss, deterioration of general health
 - Aortic
Infections: Syphilis ... Spondyloarthritis, IBD ... Nivolumab, GM-CSF ... Diagnosis #Workup #Differential ... #Causes
Upper and Lower Causes of GI Bleed
Upper:
 • Esophagus: Tear (Mallory Weiss, Boerhaave syndrome), Variceal, Esophagitis,
Upper and Lower Causes ... Ischemic colitis, Infectious ... colitis, UC/Chrons ... (IBD), Radiation ... Lower #GIBleed #differential