Appearance of an Esophageal Ulcer

Description

Shown in a cutaway of the distal gullet (esophagus) and proximal stomach, the stratified squamous mucosa of the esophageal tube transitions at the gastroesophageal junction (Z line) to the columnar gastric mucosa with prominent rugae. A discrete mucosal ulcer sits near the lower esophageal sphincter, positioned superior to the gastric cardia and immediately proximal to the stomach’s wider lumen. Longitudinal mucosal folds run parallel to the esophageal axis, while the stomach’s rugae course more irregularly and expand outward laterally. Most clinically relevant esophageal ulcers cluster in this distal segment because repeated acid exposure in gastroesophageal reflux disease concentrates injury at and just above the Z line. That location also intersects key endoscopic landmarks used to grade erosive esophagitis, identify Barrett metaplasia, and target biopsy sites when dysphagia, odynophagia, or upper GI bleeding prompts evaluation. Differential diagnosis stays practical here: reflux-related ulceration, pill esophagitis from bisphosphonates or doxycycline lodging at physiologic narrowings, and infectious ulcers in immunosuppressed patients (classically CMV with large shallow ulcers, HSV with small “volcano” lesions), each with different distribution and mucosal appearance. Use this artwork in gastroenterology and pathology teaching modules to anchor discussion of the esophagogastric junction, normal rugal anatomy, and the visual language of mucosal breakdown. It also fits endoscopy manuals, patient-facing education on reflux complications, and clinical slide decks covering causes of odynophagia and nonvariceal upper GI hemorrhage, where a clear depiction of ulcer position relative to the lower esophageal sphincter matters. Anatomical accuracy verified by SciePro's Medical Advisory Board.