15 results
Hamartomatous Polyposis Syndromes - Peutz-Jeghers Syndrome (PJS), Juvenile Polyposis Syndrome (JPS), Cowden Syndrome (CS), Cronkhite-Canada (CC),
Tract - Genetic testing ... + CRC + Gastric ... the colon, or FHx ... throughout colon ... Likely risk of CRC
IBD Colonoscopy Surveillance - BSG Guidelines 2019
High Risk - 1 Year
 •  Extensive colitis AND
IBD Colonoscopy ... relative with CRC ... affecting <50% of colon ... @drkeithsiau #IBD ... #Colonoscopy #Surveillance
Performance Characteristics for Colorectal Cancer Screening Tests
Stool/blood-based tests:
 • FIT: 79% sensitivity, 94% specificity for CRC
visualization: • Colonoscopy ... lesions or SSLs • Colon ... specificity for polyps ... Tests #comparison #table ... #Testing
IBD Colonoscopy Surveillance 
LOW RISK - Follow-up Colonoscopy at 3 years:
 • Quiescent disease , Endoscopic
IBD Colonoscopy ... risk factors for CRC ... • Inflammatory polyps ... Risk factors for CRC ... degree relative #IBD
ACA Colorectal Cancer Screening Guidelines

When to Screen?
When to Stop?
Family History

Performance Characteristics for Colorectal Cancer Screening Tests
Stool/blood-based
visualization: • Colonoscopy ... lesions or SSLs • Colon ... specificity for polyps ... Tests #comparison #table ... #Testing #Indications
Irritable Bowel Syndrome (IBS) - Diagnosis and Workup Summary
Use a positive diagnostic strategy with minimal testing.
strategy with minimal testing ... risk • Routine colonoscopy ... things" → fewer polyps ... allergy/ sensitivity testing ... lactoferrin + CRP
Ulcerative Colitis vs Crohn's Disease - IBD Comparison Table
Ulcerative Collitis
 - Location
Crohn's Disease - IBD ... Comparison Table ... diseased and normal colon ... Locality in the setting ... #Comparison #Table
Upper and Lower Causes of GI Bleed
Upper:
 • Esophagus: Tear (Mallory Weiss, Boerhaave syndrome), Variceal, Esophagitis,
Diverticular, Cancer, Polyps ... colitis, UC/Chrons (IBD ... , Radiation CMC ... diagnosis #Causes #algorithm
Approaching a Difficult Colonoscopy - Scoping Summary
Risk factors for failed C-scope:
 • Incr Age
 • Female
Approaching a Difficult Colonoscopy ... Private practice setting ... 1) Redundant Colon ... failed/redundant colons ... diagnosis #management #algorithm
Diarrhea Workup and Management Algorithm in Transplant Patients
First Tier Microbiologic-Testing:
1. C. difficile PCR (Stool)
2. CMV qPCR
and Management Algorithm ... Microbiologic-Testing ... Colonoscopy +/- ... PTLD, GVHD or IBD ... Workup #Management #Algorithm