Abstract
This image shows a mucinous neoplasm replacing the appendix, extending through the wall of the appendix, causing mucin accumulation in the peritoneum with extensive involvement of the serosa and omentum. Which of the following statements is true about appendiceal tumors?a.Appendiceal mucinous tumors are the only tumors associated with pseudomyxoma peritoneib.Pseudomyxoma peritonei may be caused by mucinous tumors of various sites, including the appendix, ovary, colon, pancreas, and gallbladder, but appendiceal tumors are the most common causec.Well-differentiated neuroendocrine tumors (carcinoid tumors) are the most aggressive tumors of the appendixd.Pseudomyxoma peritonei occurs only with high-grade tumors Answer: b. Pseudomyxoma peritonei may be caused by mucinous tumors of various sites, including the appendix, ovary, colon, pancreas, and gallbladder, but appendiceal tumors are the most common cause Mucinous tumors of various sites, including the appendix, ovary, colon, pancreas, and gallbladder, have been associated with pseudomyxoma peritonei. But the most common cause of pseudomyxoma peritonei is peritoneal spread of a mucinous appendiceal neoplasm. The term “pseudomyxoma peritonei” is a clinical term used to describe the accumulation of extensive mucin in the peritoneal cavity.1Carr N.J. Bibeau F. Bradley R.F. et al.The histopathological classification, diagnosis and differential diagnosis of mucinous appendiceal neoplasms, appendiceal adenocarcinomas and pseudomyxoma peritonei.Histopathology. 2017; 71: 847-858Crossref PubMed Scopus (122) Google Scholar
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