100 results
Polyp Incidence on Colonoscopy
Tubular adenoma - 47.2%
Hyperplastic polyp - 16.0%
Tubulovillous adenoma - 17.6%
Normal - 5.6%
Inflammatory polyp
Polyp Incidence ... Hyperplastic polyp ... Inflammatory polyp ... Other - 2.0% Sessile ... Adenocarcinoma in polyp
Risk of Residual Cancer after Endoscopy Resection of Malignant Polyps
Risk Criteria:
 • Resection margin < 1mm
Resection of Malignant Polyps ... Haggitt 4 ++++ • Sessile ... Kikuchi 2 ++ • Sessile ... drkeithsiau #Malignant #Polyp
Haggitt Classification of depth of invasion in malignant pedunculated and sessile polyps
Level 1 - confined to
pedunculated and sessile ... polyps Level 1 ... the head of the polyp ... Classification #polyp
Serrated Polyps
Hyperplastic polyps (HPs):
 • Prevalence: 20-30%
 • Size: Usually small or diminutive (s 5mm)
 •
Serrated Polyps ... Hyperplastic polyps ... 70%-80% distal Sessile ... Flat (45%) or sessile ... #Serrated #Polyps
Kikuchi Classification of depth of invasion into the submucosa of a malignant Sessile Polyp

Sm1 - invasion
of a malignant Sessile ... Polyp Sm1 - invasion ... Classification #Sessile ... #Polyp #diagnosis
Paris classification of colorectal polyps 
Raised:
 • 1p Pedunculated
 • 1sp Sub-pedunculated
 • 1s Sessile
Flat:
 •
of colorectal polyps ... Sub-pedunculated • 1s Sessile ... classification #colorectal #polyps
Fundic gland polyps on Endoscopy
46 yo F. with hx of 8 months of abdominal pain with
Fundic gland polyps ... Fundic gland polyps ... transparent & sessile ... , FAP multiple polyps ... Fundic #gland #polyps
Colonoscopy Followup Intervals 
10 years: Normal colonoscopy, ≥ 20 HP < 10mm
7-10 years: 1-2 adenomas <
adenomas SSPs: Sessile ... serrated polyps
Colorectal Lesions - JNET Classification
Type 1:
 - Vessel pattern: Invisible
 - Surface pattern: Regular dark or
: Hyperplastic polyp ... / Sessile serrated ... polyp Type 2A:
Colorectal Cancer Screening and Polyp Surveillance Intervals
Colon Cancer Screening - Modality - Interval:
 • Colonoscopy -
Screening and Polyp ... Capsule - q5 years Polyp ... • Adenomatous Polyps ... • Serrated Polyps ... Cancer #Screening #Polyp