Fig. 4From: A 17-year-old male with a Small Bowel Neuroendocrine Tumor: flushing differential diagnosisIleocecal valve mucosa biopsy showing a grade 2, well-differentiated NET a Hematoxylin and eosin (H&E) staining b Intense reactivity to chromogranin staining c KI 67 staining determined a 1% proliferation cellular indexBack to article page