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Low grade appendiceal mucinous neoplasm

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https://www.readbyqxmd.com/read/28679331/predictive-value-of-peritoneal-cancer-index-for-survival-in-patients-with-mucinous-peritoneal-malignancies-treated-with-cytoreductive-surgery-and-hyperthermic-intraperitoneal-chemotherapy-a-single-center-experience
#1
Andreas Brandl, Sascha Weiss, Moritz von Winterfeld, Alexander Krannich, Matthilde Feist, Johann Pratschke, Wieland Raue, Beate Rau
OBJECTIVES: This study investigated the correlation between the peritoneal carcinomatosis index (PCI) and patient outcome depending on the tumor type. BACKGROUND: Peritoneal surface malignancy (PSM) treatment depends on tumor type. Mucinous PSM (m-PSM) is associated with a better prognosis than non-mucinous PSM (nm-PSM). The PCI´s predictive ability has not yet been evaluated. METHODS: We analyzed 123 patients with PSM treated with cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC) between 2008 and 2015...
July 5, 2017: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/28663356/appendiceal-mucinous-neoplasms-diagnosis-and-management
#2
Walid L Shaib, Rita Assi, Ali Shamseddine, Olatunji B Alese, Charles Staley, Bahar Memis, Volkan Adsay, Tonios Bekaii-Saab, Bassel F El-Rayes
OBJECTIVE: Appendiceal mucinous neoplasms (AMNs) are a rare and heterogeneous disease for which clinical management is challenging. We aim to review the literature regarding modalities of treatment to guide the management of AMNs. METHODS AND REVIEW CRITERIA: We conducted a PubMed search in February 2016 for English-language publications, using the terms "appendiceal," "appendix," "carcinoma," "cancer," "mucinous," "treatment," "genes," "target," "genomic," and terms listed in the articles' subheadings...
June 29, 2017: Oncologist
https://www.readbyqxmd.com/read/28655402/mucinous-appendiceal-neoplasms-incidence-diagnosis-and-surgical-treatment
#3
Oana Anisa Nutu, Alberto A Marcacuzco Quinto, Alejandro Manrique Municio, Iago Justo Alonso, Jorge Calvo Pulido, María García-Conde, Félix Cambra Molero, Luis Carlos Jiménez Romero
INTRODUCTION: Mucinous tumors of the appendix are a rare pathology, with a prevalence below 0.5%. Clinical presentation usually occurs during the sixth decade of life, and mucinous tumors can clinically mimic acute appendicitis. The aim of this study is to describe the clinical and demographic variables, therapeutic procedure and diagnosis of these tumors. We analyze the association between mucinous tumors and pseudomyxoma peritonei (PP), as well as the association with colorectal and ovarian tumors...
June 24, 2017: Cirugía Española
https://www.readbyqxmd.com/read/28599482/an-unusual-case-of-pseudomyxoma-peritonei-associated-with-synchronous-primary-mucinous-tumors-of-the-ovary-and-appendix-a-case-report
#4
Dong Soo Suh, Yong Jung Song, Byung Su Kwon, Sul Lee, Nam Kyung Lee, Kyung Un Choi, Ki Hyung Kim
Pseudomyxoma peritonei (PMP) is a rare disease that usually originates from mucinous neoplasms of the appendix and, less commonly, from extra-appendiceal tumors, but it may also be caused by synchronous primary mucinous tumors of the ovary and appendix. The current study discusses the case of a 73-year-old female who presented with progressively worsening indigestion and abdominal distension. Magnetic resonance imaging of the pelvis revealed a large cystic mass with a thin enhancing septa arising from the right ovary and ascites with scalloping of the liver surface...
June 2017: Oncology Letters
https://www.readbyqxmd.com/read/28591173/overinterpretation-is-common-in-pathological-diagnosis-of-appendix-cancer-during-patient-referral-for-oncologic-care
#5
Mark A Valasek, Irene Thung, Esha Gollapalle, Alexey A Hodkoff, Kaitlyn J Kelly, Joel M Baumgartner, Vera Vavinskaya, Grace Y Lin, Ann P Tipps, Mojgan V Hosseini, Andrew M Lowy
CONTEXT: Low-grade appendiceal mucinous neoplasm (LAMN) and appendiceal adenocarcinoma are known to cause the majority of pseudomyxoma peritonei (PMP, i.e. mucinous ascites); however, recognition and proper classification of these neoplasms can be difficult despite established diagnostic criteria. OBJECTIVE: To determine the pathological diagnostic concordance for appendix neoplasia and related lesions during patient referral to an academic medical center specialized in treating patients with PMP...
2017: PloS One
https://www.readbyqxmd.com/read/28526814/kras-and-gnas-co-mutation-in-metastatic-low-grade-appendiceal-mucinous-neoplasm-lamn-to-the-ovaries-a-practical-role-for-next-generation-sequencing
#6
Daniel R Matson, Jin Xu, Laura Huffman, Lisa Barroilhet, Molly Accola, William M Rehrauer, Paul Weisman
BACKGROUND Low-grade appendiceal mucinous neoplasms (LAMNs) are cytologically low-grade tumors of the appendix and are a frequent cause of pseudomyxoma peritonei. They can become a diagnostic challenge when they metastasize to the ovaries, where they may mimic primary ovarian mucinous tumors. CASE REPORT We report the case of a patient with very large bilateral ovarian mucinous tumors and a concurrent minute LAMN incidentally discovered in a grossly normal appendix. A primary ovarian tumor was suspected, but histological analysis of the ovaries suggested an appendiceal origin...
May 20, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28474197/computed-tomography-follow-up-assessment-of-patients-with-low-grade-appendiceal-mucinous-neoplasms-evaluation-of-risk-for-pseudomyxoma-peritonei
#7
Catarina Tiselius, Csaba Kindler, Jayant Shetye, Henry Letocha, Kenneth Smedh
BACKGROUND: Low-grade appendiceal mucinous neoplasms are rare. Both classification and management vary. This study aimed to follow up on patients with a diagnosis of LAMN after primary surgery with computer tomography (CT) scans to examine the risk for the development of pseudomyxoma peritonei (PMP). METHODS: This population-based prospective study investigated patients who underwent appendectomy between 2007 and 2013 and had histology results demonstrating the presence of LAMN...
May 4, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28286683/low-grade-appendiceal-mucinous-neoplasm-presenting-as-an-adnexal-mass
#8
P Panagopoulos, T Tsokaki, E Misiakos, V Domi, C Christodoulaki, D Sioutis, N Papantoniou
Appendiceal tumors are rare, late diagnosed neoplasms that may not be differentiated from adnexal masses even by advanced imaging methods and other diagnostic procedures. They may be asymptomatic and remain undiagnosed until surgery. We report a case of an 80-year-old postmenopausal woman presenting with a pelvic mass and a history of weight loss. The patient underwent laparotomy which revealed an appendiceal mucocele, for which she received a full oncological procedure. The histology report showed a low-grade appendiceal mucinous neoplasm, and the patient underwent six cycles of chemotherapy...
2017: Case Reports in Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28267002/histological-subtype-remains-a-significant-prognostic-factor-for-survival-outcomes-in-patients-with-appendiceal-mucinous-neoplasm-with-peritoneal-dissemination
#9
Yeqian Huang, Nayef A Alzahrani, Terence C Chua, David L Morris
BACKGROUND: It has been increasingly recognized that appendiceal mucinous neoplasm with peritoneal dissemination is not a homogenous disease. OBJECTIVE: This study aimed to examine the impact of different histological subtypes on survival of a large cohort of patients with appendiceal mucinous neoplasms uniformly treated by cytoreductive surgery and intraperitoneal chemotherapy. DESIGN: This was a retrospective study of prospectively collected data of patients with peritoneal dissemination of appendiceal neoplasm who underwent cytoreductive surgery and intraperitoneal chemotherapy...
April 2017: Diseases of the Colon and Rectum
https://www.readbyqxmd.com/read/28192848/low-grade-appendiceal-mucinous-neoplasm-lamn-3-year-endoscopic-follow-up-underlines-benign-course-of%C3%A2-lamn-type-1
#10
Thomas Klag, Jan Wehkamp, Hans Bösmüller, Claudius Falch, Jonas Johannink, Nisar P Malek, Andreas Kirschniak, Martin Goetz
Low-grade appendiceal mucinous neoplasms (LAMNs) are neoplastic lesions with potential progression to pseudomyxoma peritonei (PMP). In most cases, diagnosis is made because of suspected acute appendicitis or incidentally by computed tomography (CT). However, incidental diagnosis during colonoscopy is rare. We present the case of a 63-year-old man with a LAMN type 1 lesion, diagnosed at routine colonoscopy for surveillance of ulcerative colitis. Because in earlier surveillance colonoscopies, this lesion was misinterpreted as fecal polution, for the first time, this case describes retrospectively a 3-year endoscopic follow-up of LAMN type 1, underlining the benign course of these kind of lesions compared to type 2 lesions with submucosal infiltration...
February 2017: Zeitschrift Für Gastroenterologie
https://www.readbyqxmd.com/read/28133311/-a-case-of-appendiceal-mucinous-cystadenoma-treated-using-laparoscopic-appendectomy
#11
Daiki Marukawa, Shingo Noura, Harunobu Yasuyama, Tae Matsumura, Chikato Koga, Akihiro Takata, Chizu Kameda, Masahiro Murakami, Ryohei Kawabata, Masaki Hirota, Junzo Shimizu, Hideaki Miwa, Junichi Hasegawa
A 73 year-old woman who was treated for breast cancer and visited our hospital regularly was suspected of having a mucinous cystadenoma of the appendix. Malignancy could not be determined using abdominal computed tomography, magnetic resonance imaging, or colonoscopy. Even if mucinous cystadenoma is benign, there is the possibility that the tumor will rupture, discharge its contents, and cause pseudomyxoma peritonei. We performed laparoscopic appendectomy. According to the histopathological results, the tumor was diagnosed as a low grade appendiceal mucinous neoplasm...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28133251/-a-giant-appendiceal-mucinous-neoplasm-treated-with-laparoscopic-surgery
#12
Yoshito Nako, Shigeki Yamazaki, Takashi Kitade, Tomoki Hariu, Motomi Wakasa, Masayoshi Nakanishi, Teruhisa Sonoyama
We encountered a case of giant appendiceal mucinous neoplasm that was treated with laparoscopic surgery. The patient was a 77-year-old man with constipation. Lower endoscopy demonstrated a giant SMT-like tumor in the cecum, and abdominal computed tomography revealed a giant appendiceal mucinous neoplasm and nearby lymph nodes swelling. Hematological examination showed an elevated serum CEA level. We performed laparoscopic ileocecal resection for a definite diagnosis and treatment. The postoperative course was uneventful...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28133104/-fourteen-cases-of-low-grade-appendiceal-mucinous-neoplasm
#13
Takuro Yoshikawa, Hiroki Sakamoto, Takahisa Akashi, Yu Asakura, Tetsuya Ienaga
Low-grade appendiceal mucinous neoplasm(LAMN)is a rare disease. In consideration of consistency with the 2010WHO Classification, LAMNwas classified in the Japanese Classification of Colorectal Carcinoma 8th edition. The present study involved 14 patients with LAMNover a 5-year period. The preoperative diagnosis was made as mucocele of the appendix in 9 cases. Operative interventions included ileocecal resection in 6 cases(laparoscopic; 3 cases)and appendectomy in 8 cases (laparoscopic; 6 cases). Histopathologically, there was no LNpositive case...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/27980743/incidentally-discovered-low-grade-appendiceal-mucinous-neoplasm-a-precursor-to-pseudomyxoma-peritonei
#14
Vennila Padmanaban, William F Morano, Elizabeth Gleeson, Anshu Aggarwal, Beth L Mapow, David E Stein, Wilbur B Bowne
Appendiceal mucoceles (AMs) infrequently arise from an underlying malignancy. Treatment has progressed toward a less aggressive approach over time; they can be managed by appendectomy-only unless pathology reveals malignancy. The ultimate goal of management is to prevent AM rupture, avoiding the syndrome of pseudomyxoma peritonei.
December 2016: Clinical Case Reports
https://www.readbyqxmd.com/read/27913947/preclinical-evaluation-of-cathepsin-based-fluorescent-imaging-system-for-cytoreductive-surgery
#15
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
#16
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...
January 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/27843660/low-grade-appendiceal-mucinous-neoplasm-involving-the-endometrium-and-presenting-with-mucinous-vaginal-discharge
#17
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/27770344/when-and-when-not-to-perform-a-right-colon-resection-with-mucinous-appendiceal-neoplasms
#18
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...
March 2017: 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
#19
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...
January 2017: 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
#20
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
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