Fig. 4From: Acute appendicitis, inflammatory appendiceal mass and the risk of a hidden malignant tumor: a systematic review of the literatureWell-differentiated neuroendocrine neoplasia, with 1 to 2 cm, located in the tip of the appendix. Degree I (WHO) (Courtesy of Andre Bouzas, MD – Oncology Institute - Santa Paula Hospital, São PauloBack to article page