Autofluorescence imaging and magnification endoscopy

Figure 2 Esophageal squamous cell carcinoma invading the gastroesophageal junction. A: Elevated irregular mucosa with abnormal vascular pattern, difficult to see in white light endoscopy in retroflexion, immediately below the gastroesophageal junction; B: Autofluorescence imaging showing the lesion extension in magenta, with surrounding green normal mucosa; C: Magnifying endoscopy with narrow band imaging showing irregular, thick and distorted mucosal vessels characteristic for tumor angiogenesis.