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Diagnosis of Neoplasia in Barrett’s Esophagus using Vital-dye Enhanced Fluorescence Imaging
Published on: May 11, 2014
Barrett's esophagus: diagnostic challenges and recent developments.
1Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA. dmaru@mdanderson.org
Annals of Diagnostic Pathology
|May 13, 2009
Summary
Accurate diagnosis of Barrett's esophagus (BE) and dysplasia is crucial for assessing adenocarcinoma risk. Pathologists must specify columnar mucosa and intestinal metaplasia, as interobserver variability and technical issues impact grading accuracy.
Area of Science:
- Gastroenterology
- Surgical Pathology
- Oncology
Background:
- Barrett's esophagus (BE) diagnosis and dysplasia grading are critical for managing adenocarcinoma risk.
- Advances in endoscopic techniques necessitate enhanced diagnostic proficiency for pathologists.
- Histologic classification is central to risk assessment in BE-associated adenocarcinoma.
Purpose of the Study:
- To define BE and differentiate it from intestinal metaplasia of the cardia.
- To outline morphological approaches for diagnosing and grading dysplasia, distinguishing high-grade dysplasia from intramucosal carcinoma.
- To review histologic and endoscopic factors, special stains, and biomarkers associated with BE progression to adenocarcinoma.
Main Methods:
- Morphological analysis of esophageal biopsies.
- Review of literature on histologic and endoscopic factors, special stains, and biomarkers.
- Discussion of diagnostic challenges including biopsy processing, inflammation, and interobserver variability.
Main Results:
- Histologic type of columnar mucosa and intestinal metaplasia presence should be reported for BE diagnosis.
- Technical issues, inflammation, and interobserver variation are major limitations in dysplasia grading.
- Extent of high-grade dysplasia and specific endoscopic findings increase adenocarcinoma progression risk.
Conclusions:
- Accurate reporting of BE histology is essential due to definitional controversies.
- Consensus diagnosis by multiple pathologists improves risk stratification for dysplasia.
- Non-histologic markers for BE progression require further validation in prospective trials.
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