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 Small Bowel Bleeding - Differential Diagnosis
Common Causes:
 • Under age 40 years: Inflammatory Bowel
- Differential Diagnosis ... Plummer-Vinson syndrome ... Ehlers-Danlos syndrome ... , Inherited syndromes ... #Differential #Diagnosis
Irritable Bowel Syndrome (IBS) - Pathophysiology, Diagnosis and Management Algorithm
Risk factors: Previous acute enteric infection, Female
Irritable Bowel Syndrome ... Pathophysiology, Diagnosis ... functional somatic syndromes ... Irritable #Bowel #Syndrome ... Pathophysiology #Diagnosis
Carcinoid Syndrome - Pathophysiology, Signs and Symptoms
Symptoms: Flushing, diarrhea, palpitations, bronchospasm
Complications: Carcinoid heart, mesenteric fibrosis, pellagra,
Carcinoid Syndrome ... #Carcinoid #Syndrome ... Signs #Symptoms #Diagnosis
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
Hepatopulmonary Syndrome (HPS) Diagnosis Algorithm
Bubble echo is the first piece of the puzzle. The nail on
Hepatopulmonary Syndrome ... (HPS) Diagnosis ... Hepatopulmonary #Syndrome ... #HPS #Diagnosis
Common Etiologies of Cirrhosis

Inflammation

 - Hepatitis B (15 percent)

 - Hepatitis C (47 percent)

 - Schistosomiasis
disease (Budd-Chiari syndrome ... 14 percent) #Diagnosis
Gastrointestinal Causes of Iron Deficiency Anemia
 • Mass lesions: Carcinoma, Large polyps
 • Inflammatory: Reflux esophagitis,
rubber bleb nevus syndrome ... #differential #diagnosis
Serrated Polyposis Syndrome Algorithm

#Serrated #Polyposis #Syndrome #diagnosis #algorithm #gastroenterology #sps
Serrated Polyposis Syndrome ... Serrated #Polyposis #Syndrome ... #diagnosis #algorithm
Secondary Causes of Esophageal Eosinophilia (EoE) - Differential Diagnosis
 • Gastroesophageal reflux disease
 • Eosinophilic gastrointestinal
- Differential Diagnosis ... Hypereosinophilic syndrome ... • Hyper-IgE syndrome ... • Netherton's syndrome ... #Differential #Diagnosis
Causes of Low Vitamin B12 Levels
Low vitamin B12 intake - Vegetarianism, chronic alcoholism and older people
Autoimmune
and Sjögren's syndrome ... #differential #diagnosis