What surveillance is recommended for a C1M3 segment of columnar-lined esophageal mucosa with repeated biopsies demonstrating columnar metaplasia but no goblet cells/intestinal metaplasia across multiple endoscopies?

Based on current U.S. guidelines, routine endoscopic surveillance is not recommended for columnar-lined esophagus without intestinal metaplasia (goblet cells). The American Gastroenterological Association (AGA) does not consider this Barrett's esophagus and does not recommend using that term or performing surveillance for patients with only cardiac-type/columnar epithelium without goblet cells. Westerhoff et al., PMID 22642957