Unraveling the characteristics of early esophageal neuroendocrine carcinoma using multi-model endoscopy: A retrospective study of serial cases

Figure 1 White light endoscopic images of cases 1 to 4. A: Case 1, a 1.0 cm mucosal elevation with central depression was observed 30 cm from the incisors. The lesion was mobile on palpation; B: Case 2, a 1.2 cm lesion was noted 27 cm from the incisors; C: Case 3, a type 2A mucosal elevation, measuring approximately 1.2 cm × 0.7 cm, was observed 28 cm from the incisors. The lesion exhibited surface erythema, pallor, irregular granularity, erosion, spontaneous bleeding, and well-defined margins; D: Case 4, a mucosal elevation measuring approximately 1.1 cm with slight central depression was detected 30 cm from the incisors.