Search PubMed⌕ Search

SEARCH · Search PubMed

Results for “APPENDIX”

Search indexed PubMed citations on genomics, clinical trials, systematic reviews and public health. Explore titles, authors and supplied subject terms, then open the PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 19 recordsLinked to original sources
PubMed1976

Epithelial neoplasms of the vermiform appendix (exclusive of carcinoid). II. Cystadenomas, papillary adenomas, and adenomatous polyps of the appendix.

Forty-two cases of benign epithelial neoplasms of the appendix gleaned from the files of the Laboratory of Surgical Pathology, Columbia University, were studied. The majority were associated with dilatation of the appendix, or "mucocele." Conversely only 50% of all cystically dilated appendices examined had definite underlying adenomatous changes. Thus it is important to distinguish between cystic neoplasms (cystadenomas) and non-neoplastic retention cysts of the appendix. The most frequently found benign epithelial neoplasms were papillary adenomas. Even in the presence of atypia we labeled them benign. Appendectomy is usually adequate treatment for all adenomatous lesions occurring in the appendix. Almost a quarter of the cases reviewed were found to have synchronous or metachronous neoplasms elsewhere in the colon, while several patients harbored multiple colonic neoplasms in addition to the appendiceal adenomas. Thus a patient with an adenomatous lesion of the appendix should undergo a systematic search for other colonic lesions.

Adenoma↗
PubMed1976

Epithelial neoplasms of the vermiform appendix (exclusive of carcinoid). I. Adenocarcinoma of the appendix.

A study of primary epithelial neoplasms of the appendix (with the exception of classical carcinoids), produced 24 adenocarcinomas and 42 benign lesions from the files of the Laboratory of Surgical Pathology of Columbia University. Invasive adenoarcinomas were often complicated by appendicitis and were then unexpectedly discovered during appendectomy. In one third of the cases the carcinomas were found in juxtaposition to adenomatous lesions of the appendix. Well-differentiated adenocarcinomas of the colonic type generally had a better prognosis than signet-ring cell (or microglandular) tumors. The most reliable criterion for correlating prognosis was the Duke's method of staging. Since invasive adenocarcinomas of the appendix can metastasize to regional lymph nodes, treatment should ideally consist of ileocolectomy.

Adenocarcinoma↗
PubMed1996

Ultrasound imaging of the appendix testis and appendix epididymis.

The appendix testis and epididymis are well visualized on ultrasound examination. It is important to recognize the normal anatomy of the appendages to exclude them as a cause of pathology and confirm their presence as normal structures. We describe the appearances of the appendices testis and epididymis in fifty-one consecutive patients presenting to the Southampton Radiology Department. The appendix testis was identified on 80% of testes examined by ultrasound and the appendix epididymis on 6% of testes.

Adult↗
PubMed1991

Mucinous tumors of the appendix associated with mucinous tumors of the ovary and pseudomyxoma peritonei. A clinicopathological analysis of 22 cases supporting an origin in the appendix.

Twenty-two cases in which mucinous tumors of the appendix were associated with mucinous tumors of the ovary are reported. The patients ranged from 23 to 83 (average 49) years of age and usually presented with increasing abdominal girth. The appendiceal and ovarian tumors were synchronous in 21 cases. Laparotomy typically disclosed large cystic ovarian tumors that averaged 16 cm in diameter and were usually multiocular, an appendix that was usually dilated and covered with mucus, and abundant intra-abdominal mucus. The ovarian tumors were bilateral in seven cases. The ovarian and appendiceal tumors were typically similar histologically, with features similar to those of ovarian mucinous cystadenomas and cystadenomas of borderline malignancy. In most of the ovarian tumors, mucin dissected through the ovarian stroma (so-called pseudomyxoma ovarii). Eight of the 20 patients with follow-up information were well when last seen, but the duration of follow-up was 3 years or less in six of them. Two patients died of pseudomyxoma peritonei 4 and 5.5 years after presentation. One patient died of a myocardial infarct shortly after laparotomy for recurrent pseudomyxoma peritonei at 11 years. The remaining patients had definite or probable recurrent or residual disease but were alive at the time of the last follow-up information. The typical synchronous presentation of the ovarian and appendiceal tumors, their histologic similarity, the frequency of bilaterality of the ovarian tumors, the predominance of right-sided ovarian involvement, and the usual presence of mucin and atypical mucinous cells on the ovarian surfaces all point toward the probable secondary nature of the ovarian tumors.

Adult↗