abnormal mucosa in esophaguserythematous mucosa in esophagusgastric mucosa in esophagusnormal mucosa in the whole esophagusectopic gastric mucosa in esophagusheterotopic gastric mucosa esophagussalmon colored mucosa in esophagusoesophagus mucosamucosal lining of esophagusbarrett's mucosaoesophagus barretts mucosanormal esophageal mucosa
