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Mucin producing carcinoid tumours of the vermiform appendix. 1977

M T Haqqani, and G Williams

Six cases of an unusual mucoid variant of carcinoid tumour of the appendix are reported. These lesions are small, detected incidentally, and carry a good prognosis. Their histological features are distinctive and differ from those of ordinary carcinoid tumours and adenocarcinoma. They have been confused with adenocarcinoma, sometimes resulting in radical surgery. Surgery beyond appendicectomy is probably unwarranted in these cases. The mucin secreted by goblet cells of the normal mucosal epithelium and by the cells of these carcinoid tumours have certain histochemical similarities.

UI MeSH Term Description Entries
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D009077 Mucins High molecular weight mucoproteins that protect the surface of EPITHELIAL CELLS by providing a barrier to particulate matter and microorganisms. Membrane-anchored mucins may have additional roles concerned with protein interactions at the cell surface. Mucin
D002276 Carcinoid Tumor A usually small, slow-growing neoplasm composed of islands of rounded, oxyphilic, or spindle-shaped cells of medium size, with moderately small vesicular nuclei, and covered by intact mucosa with a yellow cut surface. The tumor can occur anywhere in the gastrointestinal tract (and in the lungs and other sites); approximately 90% arise in the appendix. It is now established that these tumors are of neuroendocrine origin and derive from a primitive stem cell. (From Stedman, 25th ed & Holland et al., Cancer Medicine, 3d ed, p1182) Argentaffinoma,Carcinoid,Carcinoid, Goblet Cell,Argentaffinomas,Carcinoid Tumors,Carcinoids,Carcinoids, Goblet Cell,Goblet Cell Carcinoid,Goblet Cell Carcinoids,Tumor, Carcinoid,Tumors, Carcinoid
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D001063 Appendiceal Neoplasms Tumors or cancer of the APPENDIX. Appendiceal Cancer,Cancer of Appendix,Appendix Cancer,Cancer of the Appendix,Cancer, Appendiceal,Neoplasms, Appendiceal,Appendiceal Neoplasm,Cancer, Appendix,Neoplasm, Appendiceal

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