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 hepatology differential gastroenterology algorithm cirrhosis liver management pbc primary anemia ercp pathophysiology iron acute anatomy cholangiogram colonoscopy dili disorders
Causes of Severe Acute Liver Injury - Ichemic hepatitis - Acute biliary obstruction - Drug-Induced liver
Causes of Severe ... hepatitis - Acute biliary ... Hemochromatosis - Primary biliary ... -1 antitrypsin deficiency ... Severe #Acute #Causes
Common Etiologies of Cirrhosis Inflammation - Hepatitis B (15 percent) - Hepatitis C (47 percent) - Schistosomiasis
congenital - Primary biliary ... α1-antitrypsin deficiency ... Hepatology #Cirrhosis #Causes
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 Gallstone Diseases 1. Asymptomatic Stones 75% 2. Biliary Pain 20% 3. Acute Cholecystitis 10% 4. Mirizzi's Syndrome < 0.1% 5. Cholangitis/
Biliary Pain 20% ... differential #diagnosis #causes
Gastrointestinal Causes of Iron Deficiency Anemia • Mass lesions: Carcinoma, Large polyps • Inflammatory: Reflux esophagitis,
Gastrointestinal Causes ... of Iron Deficiency ... Gastrointestinal #Iron #Deficiency ... #Anemia #Causes
Primary Biliary Cirrhosis - Pathophysiology Environmental Risk Factors: Geographic location, Smoking, Microbial triggers, Xenobiotics, Nail polish Epigentics Risk
Primary Biliary ... inflammation and biliary ... #PBC #Primary #Biliary
Drug Induced Liver Injury (DILI) - Stepwise Diagnosis Algorithm DILI suspicion Features toxic aetiology: Skin involvement, Kidney injury,
for alternative causes ... Benign/malignant biliary ... obstruction, Primary biliary
Causes of Low Vitamin B12 Levels Low vitamin B12 intake - Vegetarianism, chronic alcoholism and older people Autoimmune
Causes of Low Vitamin ... Transcobalamin II deficiency ... #VitaminB12 #deficiency
Gastrointestinal Evaluation of Iron Deficiency Anemia In patients with anemia, diagnose iron deficiency if: • Ferritin <
Evaluation of Iron Deficiency ... diagnose iron deficiency ... management #Iron #Deficiency
Primary Biliary Cirrhosis - Diagnosis Algorithm Symptoms: Fatigue, Pruritus, Right upper quadrant discomfort Signs: Jaundice, Xanthelasmata, Hepatomegaly Associated history:
Primary Biliary ... #PBC #Primary #Biliary
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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