title: Squamous dysplasia--the precursor lesion for esophageal squamous cell carcinoma.
abstract: Esophageal squamous cell carcinoma (ESCC) accounts for 80% of all esophageal cancers worldwide, and esophageal squamous dysplasia (ESD) is the only histopathology that predicts the development of ESCC. The prevalence of ESD parallels rates of invasive ESCC and is typically found in 25% or more of adults above the age of 35 years in populations in north central China, where risk for ESCC is among the highest in the world. Results of chemoprevention and early detection studies to prevent progression of ESD suggest that these approaches, coupled with emerging endoscopic therapies, offer promise for the prevention of esophageal cancer mortality in high-risk populations. Future research on ESD and ESCC should focus on finding additional modifiable risk factors and on identifying biomarkers to incorporate into early detection strategies.
authors.affiliation: National Cancer Institute, NIH, EPS, 6120 Executive Blvd, Rm 7006, Bethesda, MD 20892, USA. ptaylor@mail.nih.gov
authors.forename: Philip R
authors.initials: PR
authors.lastname: Taylor
authors.forename: Christian C
authors.initials: CC
authors.lastname: Abnet
authors.forename: Sanford M
authors.initials: SM
authors.lastname: Dawsey
mesh_terms: D000328:Adult; D002294:Carcinoma, Squamous Cell / Q000453:epidemiology / Q000209:etiology / Q000473:pathology*; D002681:China / Q000453:epidemiology; D018450:Disease Progression; D004938:Esophageal Neoplasms / Q000453:epidemiology / Q000209:etiology / Q000473:pathology*; D004947:Esophagus / Q000473:pathology*; D006801:Humans; D006965:Hyperplasia / Q000453:epidemiology / Q000209:etiology / Q000473:pathology*; D011230:Precancerous Conditions / Q000453:epidemiology / Q000209:etiology / Q000473:pathology*; D012307:Risk Factors
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