Dr. Michael Chew @mchew85
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GrepMed Gastroenterology-Hepatology Editor, Academic Hospitalist UC Davis Medical Center Internal Medicine, Yale Gastroenterology Fellow '22
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diagnosis differential hepatology gastroenterology algorithm management pathophysiology liver cirrhosis anemia bowel clinical deficiency ibs irritable table acute boerhaave colonoscopy complications
Causes of Small Bowel Bleeding - Differential Diagnosis Common Causes: • Under age 40 years: Inflammatory Bowel
Causes of Small ... Diagnosis Common Causes ... NSAID ulcers Rare Causes ... , Inherited syndromes ... Differential #Diagnosis #Causes
Gallstone Diseases 1. Asymptomatic Stones 75% 2. Biliary Pain 20% 3. Acute Cholecystitis 10% 4. Mirizzi's Syndrome < 0.1% 5. Cholangitis/
Mirizzi's Syndrome ... Fistula/Bouveret's Syndrome ... differential #diagnosis #causes
Gastrointestinal Causes of Iron Deficiency Anemia • Mass lesions: Carcinoma, Large polyps • Inflammatory: Reflux esophagitis,
Gastrointestinal Causes ... rubber bleb nevus syndrome ... Deficiency #Anemia #Causes
Common Etiologies of Cirrhosis Inflammation - Hepatitis B (15 percent) - Hepatitis C (47 percent) - Schistosomiasis
disease (Budd-Chiari syndrome ... Hepatology #Cirrhosis #Causes
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 Secondary Causes of Esophageal Eosinophilia (EoE) - Differential Diagnosis • Gastroesophageal reflux disease • Eosinophilic gastrointestinal
Secondary Causes ... Hypereosinophilic syndrome ... • Hyper-IgE syndrome ... • Netherton's syndrome ... Diagnosis #Secondary #Causes
Trichuris dysentery syndrome on sigmoidoscopy (whipworms) An 8y child was referred for sigmoidoscopy from a pediatric unit.
Trichuris dysentery syndrome ... polyp (mentioned cause ... Trichuris #dysentery #syndrome
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 Causes of Low Vitamin B12 Levels Low vitamin B12 intake - Vegetarianism, chronic alcoholism and older people Autoimmune
Causes of Low Vitamin ... and Sjögren's syndrome
Causes of a low fecal elastase Abnormal pancreatic imaging: Chronic pancreatitis, Pancreatic tumours including cystic disease, Pancreatic resection,
Causes of a low ... pancreas), Genetic causes ... Shwachman-Diamond syndrome ... Irritable bowel syndrome ... differential #diagnosis #causes
Drugs and Classes Associated with DILI and Type of Liver Injury #Medications #Differential #DrugInduced #LiverInjury #Hepatology #Pharmacology
Drugs and Classes ... #Pharmacology #Causes
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 Irritable Bowel Syndrome (IBS) - Pathophysiology, Diagnosis and Management Algorithm Risk factors: Previous acute enteric infection, Female
Irritable Bowel Syndrome ... functional somatic syndromes ... Irritable #Bowel #Syndrome
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