Normal esophago-gastric mucosal junction.
It is not always easy, even in normal subjects, to see this junction, also known as the dentate or Z-line. In older people it may be more pronounced as the lower oesophageal mucosa is often relatively paler. It is variable in appearance and may be regular, irregular, finger-like or seen as islands of squamous in gastric epithelium, or vice versa.
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