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https://www.readbyqxmd.com/read/27913947/preclinical-evaluation-of-cathepsin-based-fluorescent-imaging-system-for-cytoreductive-surgery
#1
Carlos H F Chan, Lukas F Liesenfeld, Isabel Ferreiro-Neira, James C Cusack
BACKGROUND: Cytoreductive surgery and hyperthermic intraperitoneal chemotherapy (CRS-HIPEC) is a treatment option for peritoneal surface malignancies. The ability to detect microscopic foci of peritoneal metastasis intraoperatively may ensure the completeness of cytoreduction. In this study, we evaluated the suitability of a hand-held cathepsin-based fluorescent imaging system for intraoperative detection of appendiceal and colorectal peritoneal metastasis. METHODS: Peritoneal tumors and normal peritoneal tissues were collected from patients with appendiceal and colorectal peritoneal metastasis...
December 2, 2016: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/27913053/intestinal-metaplasia-of-appendiceal-endometriosis-is-not-uncommon-and-may-mimic-appendiceal-mucinous-neoplasm
#2
Monika Vyas, Serena Wong, Xuchen Zhang
Endometriosis of the appendix can be an incidental finding or a cause of appendicitis, intussusception, perforation or retention mucocele. Intestinal metaplasia of appendiceal endometriosis may occur, which can lead to a misdiagnosis of low-grade appendiceal mucinous neoplasm. On a retrospective search of the pathology database from 2001 to 2015, we identified 78 appendiceal endometriosis cases and intestinal metaplasia was present in 10/78 (13%) cases. In most of the cases (90%), the foci of intestinal metaplasia were mainly localized close to the mucosa...
October 25, 2016: Pathology, Research and Practice
https://www.readbyqxmd.com/read/27889016/is-it-necessary-to-perform-routine-appendectomy-for-mucinous-ovarian-neoplasms-a-retrospective-study-and-meta-analysis
#3
REVIEW
Aoshuang Cheng, Minghao Li, Margaux J Kanis, Ying Xu, Qing Zhang, Baoxia Cui, Jie Jiang, YouZhong Zhang, Xingsheng Yang, Beihua Kong
OBJECTIVES: To evaluate whether routine appendectomy is necessary in all patients with mucinous borderline ovarian tumor (mBOT) or mucinous ovarian cancer (MOC) who undergo gynecologic surgery. METHODS: The database of Qilu Hospital was searched for women who underwent appendectomy in a primary surgery for an ovarian tumor between June 2005 and June 2015 and whose final diagnosis was mBOT, MOC or primary appendiceal tumor. A retrospective review was performed, as well as a meta-analysis of the literature to further validate the findings...
November 23, 2016: Gynecologic Oncology
https://www.readbyqxmd.com/read/27870702/synchronous-ovarian-and-appendiceal-mucinous-neoplasms-in-the-absence-of-pseudomyxoma-peritonei
#4
Xianyong Gui, Jorge Escobar, Cheng-Han Lee, Máire A Duggan, Martin Köbel
BACKGROUND: Synchronous ovarian/appendiceal mucinous neoplasms sometimes occur in the absence of clinical pseudomyxoma peritonei (PMP), which raises a question about whether the 2 tumors could be independent. METHODS: We identified 11 cases of synchronous ovarian/appendiceal mucinous neoplasms without PMP and subclassified them into groups 1 and 2 based on the presence or absence of microscopic peritoneal/ovarian surface mucin deposits. A 7-marker panel (CK7, CK20, CDX2, PAX8, MUC1, MUC2, and MUC5AC) immunohistochemistry was performed on both tumors...
November 17, 2016: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/27858376/a-case-of-adenocarcinoma-arising-in-an-ileal-diverticulum-resected-by-laparoscopic-surgery
#5
Ryo Ikeshima, Junichi Nishimura, Hidekazu Takahashi, Naotsugu Haraguchi, Taishi Hata, Tsunekazu Mizushima, Yuichiro Doki, Masaki Mori
Adenocarcinoma arising in an ileal diverticulum are very rare. A 66-year-old man was recognized to have high serum CEA level and periappendiceal polycystic tumor in CT findings. Colonoscopy showed no abnormality in the ileocecal mucosa. However, the patient was suspected of appendiceal adenocarcinoma by PET/CT, which revealed FDG uptake with SUVmax of 3.9 in the tumor, and underwent radial surgery by single-incision laparoscopic surgery. Intraoperative findings showed the mass in the mesenterium of the terminal ileum but not the abnormality of the appendix...
December 2016: Surgical Case Reports
https://www.readbyqxmd.com/read/27843660/low-grade-appendiceal-mucinous-neoplasm-involving-the-endometrium-and-presenting-with-mucinous-vaginal-discharge
#6
Vera Vavinskaya, Joel M Baumgartner, Albert Ko, Cheryl C Saenz, Mark A Valasek
Primary appendiceal mucinous lesions are uncommon and represent a spectrum from nonneoplastic mucous retention cysts to invasive adenocarcinoma. Low-grade appendiceal mucinous neoplasms (LAMNs) represent an intermediate category on this spectrum and can be classified according to whether or not they are confined to the appendix. Although LAMNs are frequently confined to the appendix, they can also spread to the peritoneum and clinically progress as pseudomyxoma peritonei (i.e., mucinous ascites). Thus, the appropriate classification of appendiceal primary neoplasia is essential for prognosis and influences clinical management...
2016: Case Reports in Obstetrics and Gynecology
https://www.readbyqxmd.com/read/27835997/adenocarcinoma-mimicking-appendicular-lump-a-diagnostic-dilemma-a-case-report
#7
Sanket Kalpande, Jayashri Pandya, Tushar Sharma
BACKGROUND: Primary appendiceal adenocarcinoma is a rare tumor, mucinous variety being common. This case is reported to highlight the unusual presentation and diagnostic difficulty of appendiceal adenocarcinoma. CASE PRESENTATION: Patient presented with acute appendicitis with ill-defined tender lump which responded to conservative management. CONCLUSIONS: High index of suspicion should be kept in mind for elderly patients presenting with appendicular lump...
November 11, 2016: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/27822629/ultimate-clinical-outcomes-of-appendiceal-mucinous-neoplasm-of-uncertain-malignant-potential
#8
Rumi Shin, Young Jun Chai, Ji Won Park, Mee Soo Chang, Jeong Mo Bae, Min Jung Kim, Byung Kwan Park, Kyu Joo Park, Seung-Yong Jeong
BACKGROUND: The clinical outcome of appendiceal mucinous neoplasm (AMN) is not well understood. This study aimed to compare the long-term outcome for the uncertain malignant potential (UMP) subtype of AMNs with those of the mucinous adenoma (MA) and mucinous adenocarcinoma (MAC) subtypes. METHODS: In this study, AMNs were classified into three groups (MA, UMP, and MAC), and clinical characteristics, overall survival (OS), and progression-free survival (PFS) were compared among the three groups...
November 7, 2016: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/27784975/limited-local-extracolonic-spread-of-mucinous-appendiceal-adenocarcinoma-after-perforation-with-formation-of-a-malignant-appendix-to-sigmoid-fistula-case-report-and-literature-review
#9
Seifeldin Hakim, Mitual Amin, Mitchell S Cappell
A 68-year-old man presented with progressive right lower quadrant abdominal pain and tenderness without rebound tenderness, and with constipation during the prior 9 mo. Abdomino-pelvic computed tomography and magnetic resonance imaging demonstrated a dilated appendix forming a fistula to the sigmoid colon. Open laparotomy revealed a bulky abdominal tumor involving appendix, cecum, and sigmoid, and extending up to adjacent viscera, without ascites or peritoneal implants. The abdominal mass was removed en bloc, including resection of sigmoid colon, cecum (with preservation of ileocecal valve), appendix, right vas deferens, testicular vessels, and minimal amounts of anterior abdominal wall; and shaving off of small parts of the walls of the urinary bladder and small bowel...
October 14, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27770344/when-and-when-not-to-perform-a-right-colon-resection-with-mucinous-appendiceal-neoplasms
#10
Paul H Sugarbaker
BACKGROUND: Mucinous appendiceal neoplasms (MAN) with peritoneal dissemination is treated as a standard of care using cytoreductive surgery and hyperthermic perioperative chemotherapy. The extent of the resection of peritoneal surfaces and visceral structures is generally well defined. Exception to this consensus regarding structures to be removed are the right colon and adjacent ileocolic lymph nodes. METHODS: From a prospectively maintained database, all patients with a histologic diagnosis of peritoneal mucinous carcinoma (PMCA) who underwent complete cytoreductive surgery were assessed for the presence versus absence of adenocarcinoma in lymph nodes within the appendiceal mesentery and/or in the lymph nodes of the ileocolic group...
October 21, 2016: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/27718032/early-postoperative-intraperitoneal-chemotherapy-for-low-grade-appendiceal-mucinous-neoplasms-with-pseudomyxoma-peritonei-is-it-beneficial
#11
Yeqian Huang, Nayef A Alzahrani, Winston Liauw, Thamer B Traiki, David L Morris
BACKGROUND: There is little evidence for the use of early postoperative intraperitoneal chemotherapy (EPIC) in patients with low-grade appendiceal mucinous neoplasms (LAMNs) with pseudomyxoma peritonei (PMP). This study aims to assess the outcomes regarding the use of EPIC in a large cohort of patients with LAMNs with PMP uniformly treated by cytoreductive surgery (CRS) and perioperative intraperitoneal chemotherapy (PIC), all of whom received hyperthermic intraperitoneal chemotherapy (HIPEC), and most of whom also received EPIC...
October 7, 2016: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/27712976/a-rare-low-grade-appendiceal-mucinous-neoplasm-pseudomyxoma-peritonei-with-ossification-a-case-report-with-morphoproteomic-analysis-of-bone-formation
#12
Byeong-Joo Noh, Youn Wha Kim, Yong-Koo Park
Heterotopic ossification occurring to low-grade appendiceal mucinous neoplasm (LAMN) (pseudomyxoma peritonei) is extremely rare. The pathogenetic mechanism of the tumor-related heterotopic bone formation remains as yet unconfirmed. Here, we describe a rare case of LAMN with ossification in a 72-year-old woman, and concentrate on the etiology of heterotopic ossification by the immunohistochemical evaluation of the novel markers such as BMP9, osteocalcin, and osteopontin. BMP9 is one of the most effective osteogenetic proteins...
November 2016: Pathology, Research and Practice
https://www.readbyqxmd.com/read/27684884/synchronous-low-grade-appendiceal-mucinous-neoplasm-and-primary-peritoneal-low-grade-serous-carcinoma-a-first-description-of-these-2-neoplasms-presenting-together-as-suspected-peritoneal-carcinomatosis
#13
Miroslav Sekulic, Simona Pichler Sekulic, Saeid Movahedi-Lankarani
Low-grade appendiceal mucinous neoplasm is a neoplasm typically of appendiceal origin, which is characterized by diffuse peritoneal involvement by pools of mucin with mucinous epithelium lacking high-grade cytologic atypia, and clinically presents as suspected peritoneal carcinomatosis. A similar clinical presentation can sometimes be seen with disseminated low-grade serous carcinomas of the peritoneum, fallopian tubes, or ovaries; however, this neoplasm is histologically characterized by tubal-type epithelium and invasive or confluent growth...
September 28, 2016: International Journal of Gynecological Pathology
https://www.readbyqxmd.com/read/27660258/low-grade-appendiceal-mucinous-neoplasm-of-uncertain-malignant-potential-lamn-ump-prognostic-factors-and-implications-for-treatment-and-follow-up
#14
Keith Fournier, Safia Rafeeq, Melissa Taggart, Paul Kanaby, Jing Ning, Hsiang-Chun Chen, Michael Overman, Kanwal Raghav, Cathy Eng, Paul Mansfield, Richard Royal
BACKGROUND: Low-grade appendiceal mucinous neoplasm of uncertain malignant potential are poorly understood lesions characterized by extraluminal mucin or fibrosis with neoplastic cells confined to the appendiceal lumen. The purpose of this study is to investigate the clinical and pathologic parameters of these lesions to optimize our understanding and management of these tumors. METHODS: Subjects with these tumors were identified from the appendiceal tumor databases at the University of Texas MD Anderson Cancer Center...
September 22, 2016: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/27649955/key-gaps-in-pathologic-reporting-for-appendiceal-mucinous-neoplasms-time-for-universal-synoptic-reporting
#15
Eisar Al-Sukhni, Charles LeVea, Joseph Skitzki, John Kane, Valerie Francescutti
INTRODUCTION: The prognosis of appendiceal mucinous neoplasms (AMN) is directly related to their histopathology. Existing classification schemes encompass tumors with widely divergent clinical behaviors within a single diagnosis, making it difficult for clinicians to interpret pathology reports to counsel patients on optimal management. We sought to examine pathology reports generated for AMN for inclusion of essential histologic features. METHODS: Pathology reports of appendectomy specimens with a diagnosis of AMN (2002-2015) at our center ("internal") and from referring institutions ("external") were retrospectively reviewed for inclusion of the following 5 essential items: layer of invasion, mucin dissection (low grade neoplasms only), perforation, margins, and serosal implants...
October 2016: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/27619776/early-identification-of-dpam-in-at-risk-low-grade-appendiceal-mucinous-neoplasm-patients-a-new-approach-to-surveillance-for-peritoneal-metastasis
#16
Jason M Foster, Richard L Sleightholm, Steve Wahlmeier, Brian Loggie, Poonam Sharma, Asish Patel
BACKGROUND: Disseminated peritoneal adenomucinosis (DPAM) patients often have a history of appendectomy with identification of an incidental mucinous neoplasm (low-grade appendiceal mucinous neoplasm (LAMN)). The rate of developing DPAM is not well established. METHODS: Twenty-two patients with incidental LAMN were identified and monitored with cancer markers and CT every 4-6 months. Laparoscopy with peritoneal washing was performed in patients either in the event of radiographic disease or after 12 months in absence of radiographic disease...
September 13, 2016: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/27583883/contrast-enhanced-ultrasound-improves-accurate-identification-of-appendiceal-mucinous-adenocarcinoma-in-an-old-patient-a-case-report
#17
Jing Shang, Li-Tao Ruan, Ying Dang, Yun-Yue Wang, Yan Song, Jie Lian
BACKGROUND: Adenocarcinoma of appendiceal origin is far rarer than other colorectal carcinomas and its preoperative diagnosis is challenging. To our knowledge, utility of contrast-enhanced ultrasound (CEUS) to diagnose it is much less. METHOD: A 61-year-old man presented with abdominal pain in the right lower quadrant for 20 days. In order to fulfill an accurately preoperative diagnosis, he received laboratory and imaging tests such as carcinoembryonic antigen (CEA), computer tomography (CT), CEUS and endoscope...
August 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27552403/prevalence-of-appendiceal-lesions-in-appendicectomies-performed-during-surgery-for-mucinous-ovarian-tumors-a-retrospective-study
#18
Luiza Moore, Ketan Gajjar, Mercedes Jimenez-Linan, Robin Crawford
OBJECTIVES: The aim of this study was to assess the frequency of appendiceal pathology in women undergoing surgery for mucinous ovarian neoplasm and to evaluate whether appendicectomy is necessary. METHODS: This single-institution retrospective study reviewed prevalence of appendiceal lesions in all patients operated on at our institution from 2002 to 2013 with the final diagnosis of mucinous tumor of the ovary. Clinicopathological data were analyzed. RESULTS: One hundred twenty-three cases were identified...
October 2016: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/27535756/necessity-of-appendectomy-for-mucinous-borderline-ovarian-tumors-systematic-review
#19
Stefan Cosyns, Philippe De Sutter, Herman Tournaye, Nikolaos P Polyzos
OBJECTIVE: The benefit of performing an appendectomy during the surgical treatment of a mucinous borderline ovarian tumor (mBOT) is still controversial, even though clinical guidelines recommend this procedure. PURPOSE: Our aim was to systematically assess the available evidence on appendectomy in the case of diagnosis of mBOT. METHODS: A comprehensive search of the literature was conducted using electronic databases using the search terms: (borderline OR low malignant potential) AND (appendectomy OR appendix)...
August 17, 2016: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/27502722/toward-the-molecular-dissection-of-peritoneal-pseudomyxoma
#20
F Pietrantonio, F Perrone, A Mennitto, E M Gleeson, M Milione, E Tamborini, A Busico, G Settanni, R Berenato, M Caporale, F Morano, I Bossi, A Pellegrinelli, M Di Bartolomeo, F de Braud, D Baratti, W B Bowne, S Kusamura, M Deraco
BACKGROUND: Outcome of pseudomyxoma peritonei (PMP) after cytoreductive surgery (CRS) and hypertermic intraperitoneal chemotherapy (HIPEC) is heterogeneous even after adjusting for clinico-pathological prognostic variables. The identification of additional prognostic or even predictive biomarkers is an unmet clinical need. PATIENTS AND METHODS: Forty patients with mucinous appendiceal tumors and PMP were clinically eligible and had evaluable tumor samples obtained after CRS and HIPEC...
November 2016: Annals of Oncology: Official Journal of the European Society for Medical Oncology
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