1/36. Mucinous cystadenocarcinoma of the appendix. A rare tumour of the right iliac fossa.A case of mucinous cystadenocarcinoma of the appendix is presented. The clinical feature is a painful syndrome of the right iliac fossa. In our observation, the diagnosis was not allowed by preoperative imaging. appendectomy was initially performed and completed by right hemicolectomy and lymphadenectomy after histological diagnosis of the appendicular malignant tumour was forwarded. The prognosis of this tumour is generally excellent providing early diagnosis and wide enough surgery.- - - - - - - - - - ranking = 1keywords = cystadenocarcinoma (Clic here for more details about this article) |
2/36. Synchronous mucinous tumors of the ovary and the appendix associated with pseudomyxoma peritonei: CT findings.BACKGROUND: To present the computed tomographic (CT) findings of synchronous mucinous tumors of the ovary and the appendix associated with pseudomyxoma peritonei (PMP). methods: Imaging studies, mainly abdominal CT scans, of three women aged 49-75 years were reviewed. attention was directed to the ovarian masses, peritoneal seeding, and the presence of an appendiceal mucocele. RESULTS: The ovarian tumors and the appendiceal mucocele were clearly demonstrated in two cases, and they were part of the extensive PMP in the third patient. ascites was found in all cases, with internal septation in one. Associated scalloping of the liver margins and hypodense peritoneal implants, with extensive bowel involvement, were seen in another one. Pathologically, there was one case of right ovarian mucinous cystadenoma and villous adenoma of the appendix, one case of right ovarian and appendiceal mucinous cystadenocarcinoma, and one case of bilateral metastatic ovarian implants of appendiceal mucinous cystadenocarcinoma. PMP was found in all. In the case with benign tumors of the ovary and the appendix, the PMP was classified as a benign mucinous spillage. This patient returned 33 months after surgery with PMP, in which epithelial cells were found. CONCLUSIONS: Radiologists should be familiar with the clinical occurrence of synchronous mucinous tumors of the ovary and the appendix associated with PMP and with the typical CT findings of the latter two entities. Alternatively, when the imaging findings suggest ovarian cystic tumor with PMP, the radiologist should be alerted to the probability of a clinically unsuspected appendiceal mucocele and should search for it.- - - - - - - - - - ranking = 0.4keywords = cystadenocarcinoma (Clic here for more details about this article) |
3/36. Primary appendiceal malignancy mimicking advanced stage ovarian carcinoma: a case series.BACKGROUND: Primary appendiceal malignancy metastatic to the ovaries is a rare condition that may mimic late stage ovarian cancer. This condition is rarely diagnosed preoperatively. CASES: Three patients referred to our institution from 1994 to 1999 for presumed late stage ovarian cancer were found to have primary appendiceal adenocarcinoma, adenocarcinoid, and mucinous cystadenocarcinoma metastatic to the ovaries at laparotomy. We describe the clinical course of these patients and review the relevant literature. CONCLUSION: It is important for the gynecologic oncologist to be aware of the clinicopathological features and surgical management of these malignancies, as the incidence, prognosis, and recommended treatment vary with histological subtype.- - - - - - - - - - ranking = 0.2keywords = cystadenocarcinoma (Clic here for more details about this article) |
4/36. Appendiceal carcinoma invading the urinary bladder.A case is reported of a 78-year-old woman with appendiceal carcinoma invading the bladder causing irritative symptoms. Although several imaging studies suggested that the secondary bladder tumor was of cecal or appendiceal origin, such as abscess or mucocele, histologic findings on transurethral and transvaginal biopsy were inconclusive. However, following laparotomy, pathologic examination of the frozen sections revealed a mucinous cystadenocarcinoma originating in the appendix and a right hemicolectomy and en bloc partial cystectomy were performed. One year after the operation, the patient was well with no evidence of recurrent cancer.- - - - - - - - - - ranking = 0.2keywords = cystadenocarcinoma (Clic here for more details about this article) |
5/36. Mucinous appendicular cystadenocarcinoma and pregnancy.Primary appendicular adenocarcinoma is rare. We report an unusual mucinous appendicular adenocarcinoma during pregnancy. To our knowledge, this is the second reported case in the literature. A mucinous appendicular cystoadenocarcinoma was discovered unexpectedly and coincidentally during a cesarean section performed in term pregnancy. An appendectomy was simultaneously performed, followed by a right hemicolectomy. Given the exceptionally low incidence tumors co-existing with pregnancy, we recommend a careful and complete appendix examination during cesarean and postpartum sterilization, and subsequent removal of tumors should they exist.- - - - - - - - - - ranking = 0.8keywords = cystadenocarcinoma (Clic here for more details about this article) |
6/36. Mucinous cystadenocarcinoma in the appendix in a patient with nonrotation: report of a case.Mucinous cystadenocarcinoma in the appendix is uncommon. An anomaly in the rotation of the intestine is also uncommon in adults. We herein report a case of mucinous cystadenocarcinoma in the appendix in a patient with nonrotation. To the best of our knowledge, this is the first report of appendiceal carcinoma in a patient with an anomaly of intestinal rotation. A 76-year-old woman was admitted to our hospital with left low abdominal pain. physical examination revealed tenderness with muscle rigidity in the left lower quadrant. The patient was diagnosed to have intussusception by computed tomography and ultrasonography. An emergency operation showed nonrotation and the top of the appendix situated in the left iliac fossa. An appendectomy was performed because of gangrenous acute appendicitis. However, the cut surface of the appendix showed a mucocele measuring 4 x 4 cm in size. It was diagnosed to be mucinous cystadenocarcinoma histopathologically. A right hemicolectomy with lymph node dissection was performed, and no remaining cancer cells or lymph node metastases were found in the resected specimen pathologically. The patient had an uneventful postoperative course. No signs of recurrence have been observed for 23 months since her last operation.- - - - - - - - - - ranking = 1.4keywords = cystadenocarcinoma (Clic here for more details about this article) |
7/36. Appendiceal mucocoele: a case report and review of the literature.Mucocoele of the appendix denotes an obstructive dilatation of the appendiceal lumen due to abnormal accumulation of mucus, which may be related to a variety of pathological conditions. This may be the outcome of various processes. Most important for the surgeon, however, are the mucocoeles that are caused by mucinous cystadenomas and cystadenocarcinomas. In the latter case, a possible rupture of the mucocoele, either spontaneous or accidental, during surgery may result in the clinical condition of pseudomyxoma peritonei, a spread of malignant cells throughout the entire peritoneal cavity in the form of multiple mucinous deposits. It is therefore important both to identify the disease preoperatively and to plan a careful resection to remove the mass. We report one case and present the clinical and diagnostic aspects of this disease.- - - - - - - - - - ranking = 0.2keywords = cystadenocarcinoma (Clic here for more details about this article) |
8/36. pseudomyxoma peritonei of appendiceal cancer with metastasis to the stomach: report of a case.Appendiceal cancer associated with pseudomyxoma peritonei is a relatively low-grade malignancy rarely associated with extraperitoneal metastasis. We report herein the case of a 71-year-old man in whom a metastasis was found in the stomach 2 years after he underwent surgery for pseudomyxoma peritonei of appendiceal cancer. He was referred to our hospital after presenting with anorexia and vomiting. Gastrofiberscopy, abdominal computed tomography, and ultrasound examination all revealed a mass 4 x 4cm in size, containing a small ulcer, in the antrum of the greater curvature of the stomach. The histopathological diagnosis made from a biopsy of the tumor was mucinous cystadenocarcinoma. A distal partial gastrectomy was performed and the resected specimens from the appendiceal cancer resected 2 years earlier showed the same histological pattern as that of the gastric lesion. To the best of our knowledge, this is only the second report of pseudomyxoma peritonei secondary to mucinous cystadenocarcinoma of the appendix that metastasized to the stomach.- - - - - - - - - - ranking = 0.4keywords = cystadenocarcinoma (Clic here for more details about this article) |
9/36. Appendiceal mucocele of mucinous cystadenocarcinoma with a cutaneous fistula.We report a novel case of cystadenocarcinoma forming an appendiceal mucocele with development of a skin fistula. The patient was a 75-year-old Japanese woman who originally presented with a skin ulcer on the right flank (inferior to the ribs and superior to the iliac bone) with mucus discharge. The serum concentration of carcinoembryonal antigen was elevated (57.4 ng/ml). ultrasonography and computed tomography demonstrated a cystic mass with septations in the right iliac fossa. Fistulography from the skin ulceration showed a communication via the fistula to the caecum. A right hemicolectomy and enbloc resection of the skin fistula was performed. The histological findings revealed a well-differentiated mucinous cystadenocarcinoma of the appendix. The patient has been alive for 7 years following surgery without any sign of recurrence. This report is of interest as it demonstrates that tumour rupture to the extraperitoneal space could result in a good outcome by preventing the development of pseudomyxoma peritonei.- - - - - - - - - - ranking = 1.2keywords = cystadenocarcinoma (Clic here for more details about this article) |
10/36. cystadenocarcinoma of the appendix: an incidental imaging finding in a patient with adenocarcinomas of the ascending and the sigmoid colon.BACKGROUND: Primary adenocarcinomas of the appendix are uncommon. Mucoceles that result from mucinous adenocarcinomas of the appendix may be incidentally detected on imaging. CASE PRESENTATION: A case of a mucocele of the appendix, due to cystadenocarcinoma, is presented as an incidental imaging finding in a female, 86-year-old patient. The patient was admitted due to rectal hemorrhage and underwent colonoscopy, x-ray, US and CT. Adenocarcinoma of the ascending colon, adenomatous polyp of the sigmoid colon and a cystic lesion in the right iliac fossa were diagnosed. The cystic lesion was characterized as mucocele. The patient underwent right hemicolectomy, excision of the mucocele and sigmoidectomy. She recovered well and in two-year follow-up is free from cancer. CONCLUSIONS: Preoperative diagnosis of an underlying malignancy in a mucocele is important for patient management, but it is difficult on imaging studies. Small lymph nodes or soft tissue stranding in the surrounding fat on computed tomography examination may suggest the possibility of malignancy.- - - - - - - - - - ranking = 0.2keywords = cystadenocarcinoma (Clic here for more details about this article) |
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