Spontaneous regression of gastric gastrinoma after resection of metastases to the lesser omentum: A case report and review of literature

Figure 5 The gastric neuroendocrine neoplasm was barely identifiable on follow-up esophagogastroduodenoscopy, reducing to a red dot with no visible elevation (A); biopsy of the lesion was negative for tumor, with only regenerative and fibrous changes (B); synaptophysin (C) stain was also negative.