Incidental neuroendocrine tumor of a complete subserosal appendix: an unusual presentation of a rare anatomical variation. A case report and review of literature.

Background: Appendix' anatomical variations are a rare occurrence which can mislead diagnosis and delay appropriate treatment.

Case Presentation: We present a 9-year-old female patient that came with a clinical picture compatible with acute appendicitis. However, a cecal mass was identified instead of an inflamed appendix during surgery.