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mucinous appendiceal

Elisa Schmoeckel, Thomas Kirchner, Doris Mayr
The differentiation between a primary mucinous ovarian neoplasm and an extra-ovarian metastasis in the ovary is often challenging in the histopathologic practice. Among various ovarian metastases from the gastro-intestinal tract the low-grade appendiceal mucinous neoplasm (LAMN) is an important differential diagnosis to consider particularly in case of pseudomyxoma peritonei. A newly recognized marker in the routine diagnostic of a mucinous neoplasm in the ovary is SATB2 (Special AT-rich sequence-binding protein 2)...
December 14, 2017: Pathology, Research and Practice
Masahiro Hashimoto, Kohei Murata, Yoshinori Kagawa, Atsushi Naito, Kenji Kawai, Takuya Sakamoto, Kohei Murakami, Yoshiteru Katsura, Akihisa Omura, Toru Masuzawa, Atsushi Takeno, Michiko Yoshimura, Yutaka Takeda, Takeshi Kato, Shigeyuki Tamura
Appendiceal mucinous adenocarcinoma accompanied by cysts ruptures by surgical operation and leakage of mucus into the peritoneal cavity results in deterioration of prognosis.We report a case where the appendix mucinous adenocarcinoma was safely excised by laparoscopically preceding vascular treatment, lymph node dissection and intestinal dissection.The case was a woman in her forty-age suffering from the right lower quadrant and fever; no improvement was observed even when antibiotics were administered.A cystic lesion with a maximum diameter of 75mm was found on the right side of the pelvis with CT, and numerous lymph adenopathy was observed along the iliac artery...
February 2018: Gan to Kagaku Ryoho. Cancer & Chemotherapy
Paul H Sugarbaker
BACKGROUND: Cytoreductive surgery (CRS) combined with hyperthermic intraperitoneal chemotherapy (HIPEC) may be of greatest benefit if all visible evidence of disease is resected. In some male patients the peritoneal metastases within the pelvis are invasive into the seminal vesicles and complete cytoreduction requires resection of these structures. PATIENTS AND METHODS: From a prospective database of colorectal and appendiceal cancer patients who had CT evidence of seminal vesicle involvement and then had cytoreduction including resection of the seminal vesicles were reviewed...
January 12, 2018: European Journal of Surgical Oncology
Shinji Tsutsumi, Akihiko Murata, Yoichi Yamauchi, Kensuke Okano, Hiroshi Yokoyama, Akitoshi Kimura, Yoshiya Ishizawa, Minoru Umehara, Masashi Kato, Naoki Hashimoto, Yutaka Umehara, Shinsuke Nishikawa, Kenichi Takahashi, Takayuki Morita
A 74-year-oldwoman hadconsultedthe department of urology in our hospital because of microscopic hematuria. Cystoscopy revealeda urinary bladder tumor, suspectedas an adenocarcinoma basedon biopsy. MRI showeda cystic tumor of the appendix with vesical fistula; therefore, she underwent an operation with a diagnosis of appendiceal cancer invading the urinary bladder. During the operation, we found that the appendix sunk into the urinary bladder with right adnexa. Therefore, we performed ileocecal resection, partial resection of the urinary bladder, and right adnexectomy...
November 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
Michael Xiang Ma, Jee Kong, Simon Hillery, Kim Cheah
No abstract text is available yet for this article.
January 17, 2018: Gastrointestinal Endoscopy
Marcello Guaglio, Snita Sinukumar, Shigeki Kusamura, Massimo Milione, Filippo Pietrantonio, Luigi Battaglia, Stefano Guadagni, Dario Baratti, Marcello Deraco
In the original article Massimo Milione's last name was spelled incorrectly. It is correct as reflected here. The original article has also been updated.
January 19, 2018: Annals of Surgical Oncology
Edward A Levine, Konstantinos I Votanopoulos, Perry Shen, Greg Russell, Joyce Fenstermaker, Paul Mansfield, David Bartlett, John H Stewart
BACKGROUND: Appendiceal cancer is a rare disease, which has proven difficult to study in prospective trials. Cytoreductive surgery with HIPEC is an established therapy for peritoneal dissemination from appendiceal cancer. The optimal chemotherapeutic agent to use in the HIPEC is not clear. Mitomycin has long been the utilized, however our previous phase I experience, and European retrospective studies suggest oxaliplatin as an alternative. Therefore, we initiated a multicenter randomized trial to compare mitomycin to oxaliplatin HIPEC for appendiceal cancer...
January 10, 2018: Journal of the American College of Surgeons
Walid L Shaib, Rita Assi, Ali Shamseddine, Olatunji B Alese, Charles Staley, Bahar Memis, Volkan Adsay, Tanios Bekaii-Saab, Bassel F El-Rayes
No abstract text is available yet for this article.
January 2018: Oncologist
Han Boon Oh, Yudong Chen, Yuen Soon
No abstract text is available yet for this article.
January 8, 2018: ANZ Journal of Surgery
Ashok K Dilly, Brendon D Honick, Yong J Lee, Zong S Guo, Herbert J Zeh, David L Bartlett, Haroon A Choudry
Cancer cells aberrantly express mucins to enhance their survival. Relative chemoresistance of appendiceal pseudomyxoma peritonei (PMP) is attributed to abundant extracellular mucin 2 (MUC2) protein production. We hypothesized that simultaneous MUC2 inhibition and apoptosis induction would be effective against mucinous tumors. In vitro studies were conducted using LS174T cells (MUC2-secreting human colorectal cancer cells), PMP explant tissue, and epithelial organoid cultures (colonoids) derived from mucinous appendix cancers...
December 5, 2017: Oncotarget
Meera Reghunathan, Kaitlyn J Kelly, Mark A Valasek, Andrew M Lowy, Joel M Baumgartner
BACKGROUND: Mucinous appendiceal tumors (MAT) are rare neoplasms that can metastasize to the peritoneum and often are treated with cytoreductive surgery (CRS) and HIPEC. Pathologic classification and outcomes vary, but standardized histologic definitions are emerging. We sought to evaluate outcomes in this disease after CRS/HIPEC using standardized pathologic criteria. METHOD: Outcomes of MAT with peritoneal metastases (PM) after CRS/HIPEC from 2007 to 2015 were reviewed at our institution...
December 27, 2017: Annals of Surgical Oncology
Arif Emre, Mehmet Sertkaya, İlhami Taner Kale
Objective: Appendiceal mucinous tumors can be encountered in four different types. The clinical approach varies according to these types and the severity of the present disease. We aimed to share clinical, radiological, and pathological features and surgical options of the patients diagnosed with mucinous tumors at our center. Material and Methods: Between August 2009 and March 2016, 757 patients underwent appendectomy for presumed diagnosis of acute appendicitis at the Department of Surgery, Kahramanmaraş Sütçü İmam University School of Medicine, Kahramanmaraş, Turkey...
2017: Turkish journal of surgery
Kyle D Klingbeil, Basem Azab, Mecker G Moller
BACKGROUND: A distended, mucous-filled appendix is known as an appendiceal mucocele. They are a rare form of an appendiceal mass and develop from both benign and malignant processes. Mucoceles can develop secondarily to an obstruction, such as from a fecalith, scarring or, rarely, endometriosis. Only 12 cases of non-neoplastic appendiceal mucoceles caused by endometriosis have been previously described. The association between neoplastic appendiceal mucoceles in the presence of endometriosis is described for the first time in this report...
December 19, 2017: World Journal of Surgical Oncology
Dario Baratti, Shigeki Kusamura, Massimo Milione, Federica Bruno, Marcello Guaglio, Marcello Deraco
BACKGROUND: Controversies still persist regarding the terminology and pathologic classification of appendiceal mucinous neoplasms and associated pseudomyxoma peritonei (PMP). We assessed reproducibility and prognostic significance of the classification recently proposed by the Peritoneal Surface Oncology Group International (PSOGI). METHODS: A prospective database of 265 PMP patients uniformly treated by cytoreductive surgery and hyperthermic intraperitoneal chemotherapy (CRS/HIPEC) from 1995 to 2017 was reviewed...
November 20, 2017: Annals of Surgical Oncology
C Hüttenbrink, G Hatiboglu, T Simpfendörfer, J P Radtke, R Becker, D Teber, B Hadaschik, S Pahernik, M Hohenfellner
PURPOSE: The purpose of this study is to investigate the safety and patients' benefit of incidental appendectomy during robot-assisted laparoscopic radical prostatectomy (RALRP). METHODS: Fifty-three patients, who had incidental appendectomy during RALRP between January 2012 and March 2014, were enrolled to this study. To evaluate the safety of the procedure, following parameters were evaluated: patient age, duration of surgery, perioperative complications (classified by Clavien-Dindo), time to bowel movement, and length of hospital stay...
November 2, 2017: Langenbeck's Archives of Surgery
Xinge Fu, Juhong Jiang, Bin Li, Xiao-Ying Tian, Zhi Li
Appendiceal or cecal endometriosis with intestinal metaplasia is uncommon and may mimic mucinous tumors of the appendix. A 50-year-old woman was found incidentally to have an ileocecal lesion. In the intraoperative histological examination, a diagnosis of neoplasm of the cecum was made predominantly based on mucin extrusion with scattered lining mucinous epithelium. However, postoperative histological diagnosis of the lesion was cecal endometriosis with intestinal metaplasia as determined by thoroughly microscopic inspection and the presence of typical endometrial glands with surrounding endometrial-type stroma...
October 1, 2017: International Journal of Surgical Pathology
Masahiro Shiihara, Takeshi Ohki, Masakazu Yamamoto
We report a case of appendiceal mucinous cystadenoma that was successfully diagnosed preoperatively and treated by laparoscopic resection. We could find volcano sign on colonoscopy and cystic lesion without any nodules at the appendix on computed tomography (CT). Without any malignant factors in preoperative examinations, we performed laparoscopic appendectomy including the cecal wall. We could avoid performing excessive operation for cystadenoma with accurate preoperative diagnosis and intraoperative finding and pathological diagnosis during surgery...
September 2017: Case Reports in Gastroenterology
Mark A Valasek, Reetesh K Pai
Despite advances in our understanding of appendiceal mucinous neoplasms and their relationship to the pseudomyxoma peritonei syndrome, the classification of mucinous tumors of the appendix is still confusing. This review will provide an update on the various classification systems that have been recently proposed for appendiceal mucinous neoplasia, with a particular emphasis on how to handle and report the histologic findings for these tumors using the newly published Peritoneal Surface Oncology Group International (PSOGI) and American Joint Committee on Cancer (AJCC) eighth edition guidelines...
January 2018: Advances in Anatomic Pathology
Mathew A Kozman, Oliver M Fisher, Bree-Anne J Rebolledo, Sarah J Valle, Nayef Alzahrani, Winston Liauw, David L Morris
BACKGROUND: Serum tumour levels have been shown to be prognostic in patients with epithelial appendiceal mucinous neoplasms with peritoneal dissemination (pseudomyxoma peritonei (PMP)). A singular index which incorporates both tumour activity (as depicted by serum tumour marker levels) and tumour volume (as depicted by peritoneal carcinomatosis index (PCI)), may give a more precise surrogate of tumour biological behaviour. The prognostic implication of this index has not yet been reported...
December 2017: European Journal of Surgical Oncology
Riva Das, Joshua P Cantor, Thai Q Vu
INTRODUCTION: Acute appendicitis, one of the commonest surgical diagnoses, is rare and more complex presentation in the elderly. Physicians must consider atypical causes appendicitis in this population, which could affect the management of the patient. PRESENTATION OF CASE: An elderly female presented with a two-day history of lower abdominal pain, associated with low-grade fevers and chills. Studies showed leukocytosis and computed tomography (CT) findings consistent with appendicitis...
2017: International Journal of Surgery Case Reports
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