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Extranodal Rosai-Dorfman disease involving appendix and mesenteric nodes with a protracted course: report of a rare case lacking relationship to IgG4-related disease and review of the literature.

Rosai-Dorfman disease (RDD), also known as sinus histiocytosis with massive lymphadenopathy, is a rare disease of unknown etiology that typically presents as nodal disease in young children. However, it also can present in various extranodal sites and can be difficult to recognize if not considered in the differential diagnosis. Here, we report a case of appendix involvement by extranodal RDD, which occurred in a 69-year-old woman with a long duration of 12 years for intermittent right lower quadrant pain. The patient underwent a right hemicolectomy for a clinical diagnosis of appendiceal canc

Impact of genetic mutations on prognosis and chemotherapy efficacy in advanced appendiceal carcinoma: insights from the nationwide Japanese comprehensive genomic profiling test database.

BACKGROUND: Appendiceal carcinoma (AC) is a rare malignancy and has distinct genomic features, but their impact on prognosis and chemotherapy efficacy requires further investigation. METHODS: This retrospective study analyzed patients with advanced AC from the Japanese nationwide comprehensive genomic profiling test database, the Center for Cancer Genomics and Advanced Therapeutics (C-CAT) database, focusing on genetic alterations and their associations with clinical outcomes. RESULTS: Of the 314 patients, the histological types Queryincluded adenocarcinoma (Ad) (51.9%), mucinous adenocarcin

Laparoscopy: a safe approach to appendicitis during pregnancy.

BACKGROUND: The aim of this study was to evaluate laparoscopic versus open surgery for suspected appendicitis during pregnancy. METHODS: A hospital-based retrospective review of 65 consecutive pregnant patients who underwent surgery for suspected appendicitis from 1999 to 2008 was performed. Significance was determined by Pearson's chi(2) test, Fisher's exact test, Mann-Whitney test, and Kruskal-Wallis test. RESULTS: Of the 65 patients, 48 cases were laparoscopic and 17 open. Use of the laparoscopic versus open approach was significantly increased in the first (100% vs. 0%, p < 0.001) and se

Integrated Liquid Biopsy and Tumor Tissue Genomic Profiling of Appendiceal Cancer: cfDNA Burden, Mutation Landscapes, and Clinical Outcomes.

BACKGROUND: Appendiceal cancer (AC) is a rare malignancy that often presents at advanced stages with significant histological variability influencing clinical outcomes. Precise genomic profiling is essential for accurate diagnosis and personalized patient management. This study interrogated DNA from appendiceal tumor tissue, buffy coat cells, and the cell-free DNA component of plasma using a 523-gene panel for comprehensive genomic profiling (CGP) to identify cancer-related genetic mutations in tumor and blood, evaluate tumor mutation burden, and determine genetic markers associated with histo

Predicting Survival After Cytoreductive Surgery and Hyperthermic Intraperitoneal Chemotherapy for Appendix Adenocarcinoma.

BACKGROUND: Appendix adenocarcinomas are rare tumors with propensity for peritoneal metastasis. Cytoreductive surgery with hyperthermic intraperitoneal chemotherapy is an established treatment with curative intent, but, to date, studies reporting survival have been heterogeneous with regard to their patient groups (including other tumor types), interventions (not all patients receiving intraperitoneal chemotherapy), and follow-up (varying surveillance protocols). OBJECTIVE: The aim of this study is to quantify the impact of this intervention on survival in a homogeneous group of patients with

Impairments in Bowel Function, Social Function and Quality of Life After Cytoreductive Surgery and Hyperthermic Intraperitoneal Chemotherapy.

BACKGROUND: Cytoreductive surgery and hyperthermic intraperitoneal chemotherapy (CRS-HIPEC) can be associated with decreases in quality of life (QOL). Bowel-related QOL (BR-QOL) after CRS-HIPEC has not been previously studied. The objectives of the current study were to examine the effect of different types of bowel resection during CRS-HIPEC on overall QOL and BR-QOL. METHODS: A prospective cohort study was performed. QOL data were collected using the European Organisation for Research and Treatment of Cancer (EORTC) QLQ-C30 and CR-29 questionnaires at 3, 6, and 12 months after CRS-HIPEC. Pa

Cytoreductive surgery and hyperthermic intraperitoneal chemotherapy in 1000 patients with perforated appendiceal epithelial tumours.

PURPOSE: To report early and long term outcomes following cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC) in 1000 patients with perforated appendiceal epithelial tumours, predominantly with pseudomyxoma peritonei (PMP). METHODS: Retrospective analysis of a prospective database of 1000 consecutive patients undergoing CRS and HIPEC for perforated appendiceal tumours between 1994 and 2014 in a UK National Peritoneal Malignancy unit. RESULTS: Overall 1000/1444 (69.2%) patients treated for peritoneal malignancy had appendiceal primary tumours. Of these 738/1000 (

Rational application of targeted therapeutics in mucinous colon/appendix cancers with positive predictive factors.

Molecular-targeted therapies have demonstrated disappointing results against most advanced solid cancers. This may largey be attributed to irrational drug use against unselected cancers. We investigated the efficacy of dual MEK-PI3K drug therapy against KRAS mutated mucin 2 (MUC2)-secreting LS174T cells and patient-derived ex vivo and in vivo models of KRAS mutated mucinous colon/appendix cancers. These tumors demonstrate unique phenotypic and genotypic features that likely predict sensitivity to this targeted co-therapy. Co-treatment with MEK inhibitor (trametinib) and PI3K inhibitor (pictili

Mantle Cell Lymphoma Presenting as Acute Abdominal Syndrome: A Rare Case Report and Literature Review.

BACKGROUND: Acute abdominal syndrome can be caused by several possible reasons. The most common causes are perforation of a gastroduodenal ulcer, peritonitis, intestinal obstructions, and perforation of an appendix or fallopian tube. Fever and pain can be caused by an appendicitis or sigmoiditis. Appendiceal lymphoma is a rare disease that is usually found incidentally during appendectomy. Most of the cases are non-Hodgkin's lymphomas. Mantle cell lymphoma is an aggressive B-cell non-Hodgkin's lymphoma with a poorer prognosis than other B-cell lymphomas; thus, a definitive diagnosis is essenti

Совпадение в полном тексте источника
… Approximately 1% of the appendectomy specimens are found to be appendiceal neoplasms. Most of these tumors are neuroendocrine tumors and epithelial tumors. … Appendiceal neoplasms are uncommon tumors of the gastrointestinal tract that may present with symptoms similar to appendicitis and are diagnosed by appendectomy specimens. …

Dethroning of Neuroendocrine Tumor as an Orphan Disease: US Incidence, Prevalence, and Survival in the 21st Century.

Importance: Neuroendocrine tumors (NETs) have traditionally been considered rare (orphan) diseases; however, improvements in diagnostic methods and heightened awareness about NETs may have altered their epidemiologic profile in the U.S. Objective: To evaluate trends in incidence, prevalence, and survival of NETs in the United States from 2000 to 2021 using updated data from the SEER-22 registry. Method: This population-based, retrospective cohort study used the SEER-22 database for incidence, prevalence, and survival analyses. Data included 231,659 patients diagnosed with NETs between 2000 and

Impact of molecular alterations and targeted therapy in appendiceal adenocarcinomas.

UNLABELLED: Appendiceal adenocarcinomas (AAs) are rare and this has limited their molecular understanding. The purpose of our study was to characterize the molecular profile of AA and explore the role of targeted therapy against cyclooxygenase-2 (COX-2) and epidermal growth factor receptor (EGFR). PATIENTS AND METHODS: We performed a retrospective review of 607 patients with AA at a single institution. A total of 149 patients underwent molecular testing for at least one of the following: activating mutations in KRAS, BRAF, cKIT, EGFR, or PI3K; protein expression of c-KIT or COX-2; or microsat

Access and use of immunoglobulins in secondary supportive cancer care: A systematic literature review.

BackgroundImmunoglobulin replacement therapy (IgRT) benefits patients with primary immuno deficiency (PID) originating from the innate or polygenic defects in the immune system. However, evidence supporting their therapeutic role is not as explicit in secondary immuno deficiency (SID) resulting from the treatment of haematological malignancies.ObjectivesThis study aimed to (1) create a dataset of relevant research papers, which explore the use of IgRT in SID for analysis, (2) assess the risk of bias within this dataset and (3) study the characteristics of these papers.DesignThis systematic rev

High-level microsatellite instability in appendiceal carcinomas.

High-level microsatellite instability (MSI-high) is found in approximately 15% of all colorectal adenocarcinomas (CRCs) and in at least 20% of right-sided cancers. It is most commonly due to somatic hypermethylation of the MLH1 gene promoter region, with familial cases (Lynch syndrome) representing only 2% to 3% of CRCs overall. In contrast to CRC, MSI-high in appendiceal adenocarcinomas is rare. Only 4 MSI-high appendiceal carcinomas and 1 MSI-high appendiceal serrated adenoma have been previously reported, and the prevalence of MSI in the appendix is unknown. We identified 108 appendiceal ca

2023 Scientific Session of the Society of American Gastrointestinal and Endoscopic Surgeons (SAGES), Montréal, Canada, 19 March–April 1 2023: Posters

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Комплексный подход к дифференцированию системного лейкоцита от других аутоиммунных заболеваний, вызываемых оптическим невритом.

Системная волчанка (SLE) представляет собой сложное аутоиммунное заболевание со значительной заболеваемостью и смертностью. Ранняя диагностика имеет решающее значение для эффективного управления. В качестве потенциальных первых признаков SLE появились окулярные проявления, в частности оптический нейрит (ON). В этом систематическом обзоре литературы анализируются 23 исследования, включая восемь ретроспективных исследований, пять межсекторальных исследований, два групповых исследования, четыре тематических доклада, один обзор описательной части и три систематического обзора литературы, в целях и

Keyword Index for Volume 108

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Artificial Neural Network Prediction of Mortality in Cancer Patients Presenting for Radiation Therapy at a Multisite Institution.

IntroductionFor many decades, the management of cancer has utilized radiation therapy, which continues to evolve with technology to improve patient outcomes. However, despite the standardization of treatment plans and the establishment of best clinical practices based on prospective, randomized trials and adherence to National Comprehensive Cancer Network (NCCN) guidelines, the outcomes from radiation therapy are highly variable and dependent on a number of factors, including patient demographics, tumor characteristics/histology, and treatment parameters. In this study, we attempt to use avail

2021 Scientific Session of the Society of American Gastrointestinal and Endoscopic Surgeons (SAGES), Las Vegas, Nevada, 31 August–3 September 2021: Video Loops

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Совпадение в полном тексте источника
… Radical appendectomy was described by Sugarbaker-Moreno, in Surgical Oncology 2017, as an alternative of right hemicolectomy in patients with appendiceal neoplasms. We present the case of a 44 year-old female with a left adnexal mass and CT scan suggesting appendiceal neoplasm. … The pathology showed a mucinous appendiceal neoplasm with negative margins without the need for additional oncological interventions. V199 Revisional Bariatric Surgery: Resleevee Gastrectomy Laurie Fasola, MD, FRCSC ; Kingston General Hospital. …