Carcinoid tumour of the appendix.
BRIT J SURG
1317 - 1322.
Background: Appendiceal carcinoid tumours are found in 0.3-0.9 per cent of patients undergoing appendicectomy. Controversy exists over the management following appendicectomy, especially with regard to the role of right hemicolectomy in patients with tumours smaller than 2 cm in diameter.Methods and results: The literature pertaining to the behaviour of appendiceal carcinoids was reviewed in order to formulate indications for right hemicolectomy. Metastatic disease from appendiceal carcinoids is a rare occurrence, but is more common when lesions are larger than 2 cm in diameter. The risk-benefit balance of right hemicolectomy needs to be better defined, and an improved understanding of tumour cell biology may aid prognostic accuracy and decision-making.Conclusion: There is limited evidence on which to base clear indications for right hemicolectomy in patients with a diagnosis of appendiceal carcinoid. Acceptable indications are carcinoids larger than 2 cm in size, any high-grade malignant carcinoid (including those with a high mitotic index), mesoappendiceal invasion, lesions at the base of the appendix with tumour-positive margins, and goblet cell adenocarcinoid tumours.
|Title:||Carcinoid tumour of the appendix|
|Keywords:||NEUROENDOCRINE TUMORS, CLASSIFICATION, METASTASES, PROGNOSIS, MIDGUT, TRACT|
|UCL classification:||UCL > School of Life and Medical Sciences
UCL > School of Life and Medical Sciences > Faculty of Medical Sciences
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