A conference held in Paris in 2002 reported a classification for the visual appearance of a superficial lesion of the gastrointestinal tract as seen on endoscopy.
Evaluation: endoscopy
Appearance
Designation
protruded pedunculated
Ip
protruded sessile
Is
superficial, elevated
IIa
superficial, flat
IIb
superficial, depressed, shallow
IIc
excavated (ulcer)
III
A mixed pattern has more than one appearance present.
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