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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Causes of Severe Acute Liver Injury
 - Ichemic hepatitis
 - Acute biliary obstruction
 - Drug-Induced liver
Causes of Severe ... hepatitis - Wilson disease ... Severe #Acute #Causes ... #Differential #
Gallstone Diseases
1. Asymptomatic Stones 75%
2. Biliary Pain 20%
3. Acute Cholecystitis 10%
4. Mirizzi's Syndrome < 0.1%
5. Cholangitis/
Gallstone Diseases ... #Gallstone #Diseases ... #differential # ... diagnosis #causes
Functional Dyspepsia - Signs, Symptoms and Pathophysiology
Delayed gastric emptying - Postprandial fullness, nausea, vomiting
Hypersensitivity to gastric
Functional Dyspepsia ... hypersensitivity - Nausea ... hypersensitivity - Nausea ... nonerosive reflux disease ... Epigastric pain #Functional
Common Etiologies of Cirrhosis

Inflammation

 - Hepatitis B (15 percent)

 - Hepatitis C (47 percent)

 - Schistosomiasis
Nonalcoholic fatty liver disease ... - Wilson disease ... Venoocclusive disease ... #Diagnosis #Differential ... Hepatology #Cirrhosis #Causes
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Gastrointestinal Causes of Iron Deficiency Anemia
 • Mass lesions: Carcinoma, Large polyps
 • Inflammatory: Reflux esophagitis,
Gastrointestinal Causes ... sprue, Whipple's disease ... ulcers, Crohn's disease ... Deficiency #Anemia #Causes ... #differential #
Causes of Small Bowel Bleeding - Differential Diagnosis
Common Causes:
 • Under age 40 years: Inflammatory Bowel
Causes of Small ... Bowel Bleeding - Differential ... Diagnosis Common Causes ... Inflammatory Bowel Disease ... SmallBowel #Bleeding #Differential
Abnormal liver function tests algorithm.
 This figure details the initial response to abnormal liver blood tests.
Abnormal liver function ... tests algorithm ... alcohol-related liver disease ... LFTs #Abnormal #Algorithm ... Liver #Enzymes #Differential
Causes of Low Vitamin B12 Levels
Low vitamin B12 intake - Vegetarianism, chronic alcoholism and older people
Autoimmune
Causes of Low Vitamin ... insufficiency, Crohn 's disease ... , coeliac disease ... low #cobalamin #differential
Drug Induced Liver Injury (DILI) - Stepwise Diagnosis Algorithm
DILI suspicion
Features toxic aetiology: Skin involvement, Kidney injury,
Stepwise Diagnosis Algorithm ... for alternative causes ... Alcohol-related liver disease ... Injury #Diagnosis #Algorithm
FAPD - Functional Abdominal Pain - Diagnosis Algorithm
Functional abdominal pain not otherwise
Abdominal migraine
Functional Constipation
IBS
Functional Dyspepsia

#FAPD #Functional
FAPD - Functional ... Pain - Diagnosis Algorithm ... Functional abdominal ... AbdominalPain #Diagnosis #Algorithm ... gastroenterology #differential