Neoplasms of the Appendix, Study Guides, Projects, Research of Medical Sciences

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Neoplasms of the Appendix Carcinoid Tumour (Argentaffinoma ) * Incidence : ¢ It is the commonest tumour of the appendix . ¢ The appendix is the commonest site in the gut ( 65% ) to be affected by carcinoid tumour . * Pathology : ¢ The tumour arises from Kulchisky cells in the depth of the mucosal crypts . ¢ It appears a bright yellow mass ( high lipid content ) . ¢ Usually benign but may be malignant in 5% : > Tumours less than 1cm are usually benign . > Tumours more than 2cm are usually malignant and metastasize to the liver and produce the rare carcinoid syndrome because of their production of serotonin . rene [Type text] Page 1