An international conference in Vienna in 1998 reported a classification for gastrointestinal epithelial neoplasia (GEN).
Diagnosis
Designation
Management
negative for neoplasia
V1
optional follow-up
indefinite for neoplasia
V2
follow-up
mucosal low-grade neoplasia (low-grade adenoma and/or dysplasia)
V3
endoscopic resection and follow-up
mucosal high-grade dysplasia
V4
endoscopic and/or surgical resection
submucosal invasion carcinoma
V5
surgical resection
V4.1
high grade dysplasia/adenoma
V4.2
carcinoma in situ
V4.3
suspicious for invasive carcinoma
V4.4
intramucosal carcinoma
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Specialty: Gastroenterology
