1/12. 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 = 1keywords = cystadenocarcinoma (Clic here for more details about this article) |
2/12. 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 = 1keywords = cystadenocarcinoma (Clic here for more details about this article) |
3/12. 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 = 3keywords = cystadenocarcinoma (Clic here for more details about this article) |
4/12. Imaging findings of urachal mucinous cystadenocarcinoma associated with pseudomyxoma peritonei.pseudomyxoma peritonei is an uncommon neoplastic condition in which gelatinous fluid-like materials are observed in the peritoneal cavity caused by the dissemination of mucinous adenocarcinoma. Although ruptured appendiceal mucocele is the most common cause, tumors arising from other organs may also cause pseudomyxoma peritonei. We report the imaging findings of an extremely rare case of urachal mucinous adenocarcinoma associated with pseudomyxoma peritonei on computed tomography and magnetic resonance imaging with histopathologic correlation.- - - - - - - - - - ranking = 2keywords = cystadenocarcinoma (Clic here for more details about this article) |
5/12. Mucinous cystadenocarcinoma of the appendix with pseudomyxoma peritonei presenting as total uterine prolapse. A case report.Mucinous cystadenocarcinoma of the appendix occurred with symptoms limited only to a total uterovaginal prolapse. Preoperative intravenous pyelogram and pelvic ultrasonography demonstrated the presence of a large pelvic mass. Exploratory laparotomy revealed the mass to be appendiceal adenocarcinoma, which was treated with extirpation of all the visible tumor and repair of the anatomic defect.- - - - - - - - - - ranking = 2.5keywords = cystadenocarcinoma (Clic here for more details about this article) |
6/12. pseudomyxoma peritonei due to mucinous cystadenocarcinoma in situ of the urachus presenting as an inguinal hernia.pseudomyxoma peritonei is generally caused by appendiceal and ovarian tumors. Other primary sites have been rarely reported. We describe herein the second reported case of pseudomyxoma peritonei due to mucinous cystadenocarcinoma of the urachus. A 54-year-old man was admitted with a left inguinal hernia that had developed several months prior to his admission. During herniorrhaphy, we found a large amount of gelatinous mucinous material in the indirect-hernia sac and made a diagnosis of pseudomyxoma peritonei on cytological grounds. At re-operation, the origin of the pseudomyxoma peritonei proved to be a ruptured urachal cyst. The urachal cyst and the dome of the urinary bladder were excised. In addition, we removed as much of the gelatinous material as possible. On histological examination, a unilocular cyst was found to consist of noninvasive mucinous adenocarcinoma. We succeeded in removing the rest of the mucinous material by postoperative intraperitoneal lavage with dextran solution, and have observed no evidence of recurrence for 7 years since the operation.- - - - - - - - - - ranking = 2.5keywords = cystadenocarcinoma (Clic here for more details about this article) |
7/12. Accumulation of technetium-99m MDP in pseudomyxoma peritonei.An ovarian mucinous cystadenocarcinoma which moderately accumulated Tc-99m MDP was imaged during a whole body bone scan. The primary tumor and its implants in the peritoneal cavity were both visualized and correlated with US and TCT scan findings. As a result, the radiopharmaceutical distribution accurately delineated the primary tumor and the region of tumor involvement within the peritoneal cavity. Therefore, a whole body bone scan offers a potential method for assessing neoplastic size and spread.- - - - - - - - - - ranking = 0.5keywords = cystadenocarcinoma (Clic here for more details about this article) |
8/12. Cytogenetic changes in ovarian mucinous cystadenocarcinoma of low malignant potential with persistent pseudomyxoma peritonei.Minimal cytogenetic data are available for low malignant potential ovarian neoplasms, and none for those complicated by pseudomyxoma peritonei. Cytogenetic analysis was performed on tissue obtained from a patient undergoing repeat evacuation of mucin and mucin-producing implants in pseudomyxoma peritonei originating from an ovarian mucinous cystadenocarcinoma of low malignant potential. Specimens obtained from intraperitoneal implants during one of the cyto/mucin-reductive procedures revealed a mixture of normal female karyotype (46,XX) and an abnormal karyotype with a deletion involving the short arm of chromosome 1, and a balanced translocation involving chromosomes 2 and 6, [46,XXdel(1)(p21p31), t(2;6)(q35;p21)]. The vast majority of the cells from three subsequent cyto/mucin-reductive procedures displayed a normal female karyotype with few cells containing random abnormalities.- - - - - - - - - - ranking = 2.5keywords = cystadenocarcinoma (Clic here for more details about this article) |
9/12. Successful pregnancy in a patient with pseudomyxoma peritonei arising from ovarian mucinous cystadenocarcinoma treated with cisplatin.A 24-year-old Japanese woman clinically showing pseudomyxoma peritonei arising from ovarian mucinous cystadenocarcinoma FIGO stage Ic is reported. She received intra-abdominal administrations of cisplatin five times following left oophorectomy. After being free of disease for 6 months, she conceived and carried two pregnancies to successful deliveries at 34 and 37 weeks, respectively. At the Cesarean sections, there were no abnormal findings except for right ovarian mucinous cystadenoma. She has had no evidence of recurrence by the time of the 60-month postoperative examination.- - - - - - - - - - ranking = 2.5keywords = cystadenocarcinoma (Clic here for more details about this article) |
10/12. Computed tomographic and ultrasonographic findings of pseudomyxoma peritonei.pseudomyxoma peritonei is an unusual clinical entity in which the peritoneal cavity is filled with a gelatinous material that is mucinous in nature. We present ultrasonographic and computed tomography findings in a patient with pseudomyxoma peritonei secondary to ovarain mucinous cystadenocarcinoma.- - - - - - - - - - ranking = 0.5keywords = cystadenocarcinoma (Clic here for more details about this article) |
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