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
of Small Bowel Bleeding ... - Differential Diagnosis ... , Inherited syndromes ... #SmallBowel #Bleeding ... #Differential #Diagnosis
Eosinophilic Esophagitis (EoE) - Spectrum of Response
Non-response:
 • Histology: Persistent eosinophilia, ≥ 15 eos/hpf
 • Symptoms:
• Histology: Normal ... • Endoscopy: Normal ... esophagus, EREFS ... EoE #Response #diagnosis
Abnormal liver function tests algorithm.
 This figure details the initial response to abnormal liver blood tests.
Abnormal liver function ... presence of metabolic syndrome ... sought to support a diagnosis ... Areas of diagnostic ... #Differential #Diagnosis
Gastric Intestinal Metaplasia (GIM)
 • GIM is a precancerous, histopathologic change characterized by replacement of normal
replacement of normal ... pylori) gastritis Clinical ... Metaplasia #GIM #diagnosis
Boerhaave Syndrome on Endoscopy 

Boerhaave Syndrome with complete left wall dehiscence. This one went to surgery
Boerhaave Syndrome ... Boerhaave Syndrome ... #Boerhaave #Syndrome ... #clinical #endoscopy ... #video #EGD #esophagus
Boerhaave Syndrome on Endoscopy - Pleural Space

Massive Spontaneous Esophageal Perforation (Boerhaave Syndrome) in active COVID 19
Boerhaave Syndrome ... Perforation (Boerhaave Syndrome ... #Boerhaave #Syndrome ... #clinical #endoscopy ... #video #EGD #esophagus
Causes of a low fecal elastase
Abnormal pancreatic imaging:
Chronic pancreatitis, Pancreatic tumours including cystic disease, Pancreatic resection,
fecal elastase Abnormal ... Shwachman-Diamond syndrome ... Normal Pancreatic ... Irritable bowel syndrome ... #differential #diagnosis
Rome IV Criteria for diagnosing Functional Abdominal Pain Disorders (FAPD)
Irritable bowel syndrome
The criteria must be fulfilled
IV Criteria for diagnosing ... Irritable bowel syndrome ... irritable bowel syndrome ... interferes with normal ... irritable bowel syndrome