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mucosal melanoma

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https://www.readbyqxmd.com/read/28543798/mucosal-melanoma-clinical-histological-and-c-kit-gene-mutational-profile-of-86-french-cases
#1
E Cinotti, J Chevallier, B Labeille, F Cambazard, L Thomas, B Balme, M T Leccia, M D'Incan, P Vercherin, C Douchet, P Rubegni, J L Perrot
BACKGROUND: Mucosal melanomas are rare and highly aggressive tumors. Few studies evaluated mucosal melanomas of locations other than the head and neck region, and other than those of the Asian population. OBJECTIVES: The objective of this study was to analyze the clinical and histological features, as well as the mutational status of c-kit and b-raf gene of mucosal melanoma in any localization in a French series. METHODS: We investigated clinical (sex, age, performance status, survival, treatment of the patients and lack of pigmentation of the tumors) and histopathologic features (ulceration, Breslow's index, mitotic rate), as well as the mutational status of c-kit and b-raf of 86 mucosal melanomas diagnosed in 15 years in four French University Hospitals...
May 22, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28535963/usefulness-of-11-c-methionine-pet-for-predicting-the-efficacy-of-carbon-ion-radiation-therapy-for-head-and-neck-mucosal-malignant-melanoma
#2
M Hasebe, K Yoshikawa, R Nishii, K Kawaguchi, T Kamada, Y Hamada
The aim of this study was to determine whether l-methyl-[(11)C]-methionine (MET) positron emission tomography (PET) allows the prediction of outcomes in patients with head and neck mucosal malignant melanoma treated with carbon ion radiation therapy (CIRT). This was a retrospective cohort study involving 85 patients who underwent a MET-PET or MET-PET/computed tomography (CT) examination before and after CIRT. MET uptake in the tumour was evaluated semi-quantitatively using the tumour-to-normal tissue ratio (TNR)...
May 20, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28533998/ipilimumab-as-a-cause-of-severe-pan-colitis-and-colonic-perforation
#3
Raj Shah, Danielle Witt, Talal Asif, Fahad F Mir
Ipilimumab is a human monoclonal antibody that functions as a cytotoxic T-lymphocyte-associated antigen 4 (CTLA-4) inhibitor that is used to treat malignant melanoma. Due to ipilimumab's removal of immune regulation, specifically through the inactivation of CTLA-4, it is commonly associated with inflammatory and autoimmune events. Gastrointestinal (GI) related immune-related adverse events such as diarrhea occur in 29% of patients with 7.6% of patients specifically suffering from colitis. We describe a case of colonic perforation with ipilimumab use...
April 20, 2017: Curēus
https://www.readbyqxmd.com/read/28524050/cutaneous-adverse-effects-during-ipilimumab-treatment-for-metastatic-melanoma-a-prospective-study
#4
Emi Dika, Giulia Maria Ravaioli, Pier Alessandro Fanti, Bianca Maria Piraccini, Martina Lambertini, Marco Adriano Chessa, Carlotta Baraldi, Simone Ribero, Ardizzoni Andrea, Barbara Melotti, Annalisa Patrizi
Ipilimumab is an immunomodulatory antibody directed against cytotoxic T-lymphocyte-associated antigen 4 (CTLA-4), which is administered to patients with advanced melanoma, with a proven positive effect on overall survival. The cutaneous adverse effects (AEs) of ipilimumab are relatively frequent, although described as usually mild and rarely life threatening. To describe a three-year experience of a single institute in detecting and managing cutaneous AEs. A cohort of patients (n = 41) treated with ipilimumab (3 mg/kg/three weeks) for metastatic melanoma, from 2013 to 2016, was investigated for adverse cutaneous events...
May 19, 2017: European Journal of Dermatology: EJD
https://www.readbyqxmd.com/read/28496329/minimally-invasive-endoscopic-resection-for-the-treatment-of-sinonasal-malignancy-the-outcomes-and-risk-factors-for-recurrence
#5
Ning He, Xiaohong Chen, Luo Zhang, Xuejun Chen, Zhigang Huang, Qi Zhong, Hongzhi Ma, Ling Feng, Lizhen Hou, Jugao Fang
PURPOSE: The role of minimally invasive endoscopic resection (MIER) in the treatment of sinonasal malignancy is controversial. Herein, we performed a retrospective review of a large case series of sinonasal malignancy patients treated with MIER aimed at evaluating the outcomes and identifying the risk factors for recurrence. METHODS: Patients with sinonasal malignancy who underwent MIER from March 2000 to May 2015 were enrolled, and their clinical data were collected...
2017: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/28494469/mutation-status-among-patients-with-sinonasal-mucosal-melanoma-and-its-impact-on-survival
#6
Moran Amit, Samantha Tam, Ahmed S Abdelmeguid, Dianna B Roberts, Yoko Takahashi, Shaan M Raza, Shirley Y Su, Michael E Kupferman, Franco DeMonte, Ehab Y Hanna
BACKGROUND: Sinonasal mucosal melanoma (SNMM) comprises <1% of all melanomas and lacks well-characterised molecular markers. Our aim was to determine the frequencies of common mutations and examine their utility as molecular markers in a large series of primary SNMMs. METHODS: SNMM patients seen at our institution from August 1991 through July 2016 were identified. Genomic DNA was extracted from 66 formalin-fixed paraffin-embedded tumours and screened for mutations by direct sequencing...
May 11, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28490408/endoscopic-resection-of-sinonasal-mucosal-melanoma-has-comparable-outcomes-to-open-approaches
#7
Amar Miglani, Samir H Patel, Heidi E Kosiorek, Michael L Hinni, Richard E Hayden, Devyani Lal
BACKGROUND: Endoscopic endonasal resection (EER) of sinonasal mucosal melanoma (SMM) is a newer surgical alternative to traditional external and/or open resection (OR). Studies on long-term outcomes are necessary to validate EER for this aggressive sinonasal malignancy. OBJECTIVE: To compare outcomes of EER versus OR in SMM. METHODS: A case series of patients who underwent surgical resection of SMM at a tertiary-care institution (2000-2015) was studied retrospectively...
May 1, 2017: American Journal of Rhinology & Allergy
https://www.readbyqxmd.com/read/28489445/mucosal-malignant-melanoma-presenting-with-huge-fleshy-dark-red-polyp-in-the-nasal-cavity
#8
Se-Hyung Kim
No abstract text is available yet for this article.
May 2, 2017: British Journal of Hospital Medicine
https://www.readbyqxmd.com/read/28485171/braf-inhibitors-efficacious-and-tolerable-in-braf-mutant-acral-and-mucosal-melanoma
#9
X Bai, L L Mao, Z H Chi, X N Sheng, C L Cui, Y Kong, J Dai, X Wang, S M Li, B X Tang, B Lian, L Zhou, X Q Yan, J Guo, L Si
BRAF inhibitors substantially have impressive clinical efficacy in cutaneous melanoma. However, their role in acral and mucosal melanoma remains unclear. Records were reviewed of patients with metastatic or unresectable BRAF-mutant acral and mucosal melanoma hospitalized and administered BRAF inhibitors during January 2011 and March 2016. Clinical data were collected to determine PFS, ORR, DCR, OS, and safety. Among 28 acral and 12 mucosal melanoma treated with BRAF inhibitors, median PFS were 3.6 (95%CI 3...
May 9, 2017: Neoplasma
https://www.readbyqxmd.com/read/28467829/whole-genome-landscapes-of-major-melanoma-subtypes
#10
Nicholas K Hayward, James S Wilmott, Nicola Waddell, Peter A Johansson, Matthew A Field, Katia Nones, Ann-Marie Patch, Hojabr Kakavand, Ludmil B Alexandrov, Hazel Burke, Valerie Jakrot, Stephen Kazakoff, Oliver Holmes, Conrad Leonard, Radhakrishnan Sabarinathan, Loris Mularoni, Scott Wood, Qinying Xu, Nick Waddell, Varsha Tembe, Gulietta M Pupo, Ricardo De Paoli-Iseppi, Ricardo E Vilain, Ping Shang, Loretta M S Lau, Rebecca A Dagg, Sarah-Jane Schramm, Antonia Pritchard, Ken Dutton-Regester, Felicity Newell, Anna Fitzgerald, Catherine A Shang, Sean M Grimmond, Hilda A Pickett, Jean Y Yang, Jonathan R Stretch, Andreas Behren, Richard F Kefford, Peter Hersey, Georgina V Long, Jonathan Cebon, Mark Shackleton, Andrew J Spillane, Robyn P M Saw, Núria López-Bigas, John V Pearson, John F Thompson, Richard A Scolyer, Graham J Mann
Melanoma of the skin is a common cancer only in Europeans, whereas it arises in internal body surfaces (mucosal sites) and on the hands and feet (acral sites) in people throughout the world. Here we report analysis of whole-genome sequences from cutaneous, acral and mucosal subtypes of melanoma. The heavily mutated landscape of coding and non-coding mutations in cutaneous melanoma resolved novel signatures of mutagenesis attributable to ultraviolet radiation. However, acral and mucosal melanomas were dominated by structural changes and mutation signatures of unknown aetiology, not previously identified in melanoma...
May 11, 2017: Nature
https://www.readbyqxmd.com/read/28467525/in-vivo-reflectance-confocal-microscopy-for-the-diagnosis-of-melanoma-and-melanotic-macules-of-the-lip
#11
Pablo Uribe, Helena Collgros, Richard A Scolyer, Scott W Menzies, Pascale Guitera
Importance: Benign melanotic macules (MAC) are the most frequent cause of lip pigmentation and sometimes difficult to differentiate from lip melanoma (MEL). Objectives: To report in vivo reflectance confocal microscopy (RCM) features of normal lips of different phototypes and to identify features that assist in distinguishing MEL from MAC using dermoscopy and RCM. Design, Setting, and Participants: For this retrospective observational study, 2 groups of patients from 2 tertiary referral centers for melanoma (Sydney Melanoma Diagnostic Centre and Melanoma Institute Australia) were recruited between June 2007 and January 2015...
May 3, 2017: JAMA Dermatology
https://www.readbyqxmd.com/read/28458829/distant-melanoma-causing-small-bowel-obstruction
#12
Justin M Hintze, Donal B O'Connor, Peter Molony, Paul C Neary
Small bowel obstructions (SBOs) are common. Adhesions make up the majority of cases at 84.9%, followed by abdominal herniae and malignancies. A 71-year-old female presented with total constipation, abdominal distension, on a background of resected cutaneous melanoma nine years prior. A CT-scan showed small bowel intussusception and disseminated mucosal-enhancing lesions consistent with metastases. She was brought to the operating theatre where six areas of intussusception were identified and manually reduced...
February 2017: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/28449824/primary-mucosal-melanoma-of-the-palatine-tonsil-report-of-a-case-and-review-of-the-literature
#13
Marcela Osorio, Sami P Moubayed, Juan Hernandez-Prera, John C Scott, Mark L Urken
BACKGROUND: Mucosal melanoma of the palatine tonsil is extremely rare. Due to its poor prognosis, primary tonsillar melanoma requires prompt recognition and treatment. METHODS: A 62-year-old female presented with a deeply pigmented and exophytic lesion in the left tonsillar fossa. The patient underwent a partial pharyngectomy through a midline labio-mandibulotomy approach along with a left level I-V neck dissection. Reconstruction with a left radial forearm free flap and a pharyngeal constrictor advancement pharyngoplasty was performed...
April 21, 2017: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/28445541/iqgap1-is-an-oncogenic-target-in-canine-melanoma
#14
Becky H Lee, Poornima H Neela, Michael S Kent, Ashley M Zehnder
Canine oral mucosal melanoma is an aggressive malignant neoplasm and is characterized by local infiltration and a high metastatic potential. The disease progression is similar to that of human oral melanomas. Whereas human cutaneous melanoma is primarily driven by activating mutations in Braf (60%) or Nras (20%), human mucosal melanoma harbors these mutations much less frequently. This makes therapeutic targeting and research modeling of the oral form potentially different from that of the cutaneous form in humans...
2017: PloS One
https://www.readbyqxmd.com/read/28444424/the-experience-of-immune-checkpoint-inhibitors-in-chinese-patients-with-metastatic-melanoma-a-retrospective-case-series
#15
Xizhi Wen, Ya Ding, Jingjing Li, Jingjing Zhao, Ruiqing Peng, Dandan Li, Baoyan Zhu, Yao Wang, Xing Zhang, Xiaoshi Zhang
Melanomas in Chinese patients show relatively higher rates of acral and mucosal types than in other populations. However, the efficacy of checkpoint inhibitor therapies against these melanoma subtypes is not well defined. We analyzed 52 patients treated with ipilimumab, pembrolizumab, or a combination of both to evaluate the efficacy and safety of checkpoint inhibitors in Chinese patients with advanced melanoma, particularly those with acral and mucosal types. The objective response rates (ORRs) were 0, 25, and 20% for ipilimumab, pembrolizumab, and pembrolizumab plus ipilimumab, respectively...
April 25, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/28443572/primary-sinonasal-malignant-melanoma-effect-of-clinical-and-histopathologic-prognostic-factors-on-survival
#16
Sercan Göde, Göksel Turhal, Ceyda Tarhan, Banu Yaman, Gülsen Kandıloğlu, Kerem Öztürk, İsa Kaya, Raşit Midilli, Bülent Karcı
BACKGROUND: Mucosal melanoma is a rare malignancy arising from melanocytes of the mucosal surfaces. The pattern and frequency of oncogenic mutations and histopathologic biomarkers have a role on distinct tumor behaviour and survival. AIMS: The aim of this study was to assess the rate of c-kit positivity and its effect on survival of surgically treated sinonasal malignant melanoma (SMM) patients with other histopathologic biomarkers and clinical features. STUDY DESIGN: This is a retrospective cross-sectional study...
April 6, 2017: Balkan Medical Journal
https://www.readbyqxmd.com/read/28442409/sinonasal-mucosal-melanoma-a-44-case-study-and-literature-analysis
#17
M Dréno, M Georges, F Espitalier, C Ferron, A Charnolé, B Dréno, O Malard
OBJECTIVES: Sinonasal mucosal melanoma is a rare disease, representing 4% of nasal cavity and paranasal sinus malignancies. The aim of this study was to assess the clinical characteristics, progression and treatment of this disease and to identify prognostic factors. MATERIAL AND METHODS: This retrospective review presents a cohort of 44 patients treated for a melanoma arising from the nasal cavity and paranasal sinuses, in the ENT Head and Neck Surgery Department of the University Hospital of Nantes (France) between 1988 and 2015...
April 22, 2017: European Annals of Otorhinolaryngology, Head and Neck Diseases
https://www.readbyqxmd.com/read/28425347/expression-and-clinicopathological-significance-of-mel-18-and-bmi-1-in-esophageal-squamous-cell-carcinoma
#18
Huaijun Ji, Ming Cao, Kunlun Ren, Ningbo Sun, Wei Wang, Qiang Zhu, Qi Zang, Zhongmin Jiang
The Polycomb group genes are a general class of regulators that are responsible for maintaining homeotic gene expression throughout cell division. Polycomb group expression plays an important role in oncogenesis of several types of human cancer. Melanoma nuclear protein 18 and B-cell-specific Moloney leukemia virus insert site 1 are key Polycomb group proteins. Studies have shown that melanoma nuclear protein 18 is a potential tumor suppression, and B-cell-specific Moloney leukemia virus insert site 1 is overexpressed in several human malignancies...
January 1, 2017: Technology in Cancer Research & Treatment
https://www.readbyqxmd.com/read/28412758/endoscopic-diagnosis-of-primary-anorectal-melanoma
#19
Wang Sheng, Sun Siyu, Liu Xiang, Ge Nan, Wang Guoxin, Guo Jintao, Liu Wen, Wang Shupeng
OBJECTIVE: The present study retrospectively analyzed case data from 12 patients diagnosed with anorectal melanoma, with the purpose of identifying key diagnostic features at endoscopy. MATERIALS AND METHODS: Images from colonoscopy were reviewed for all patients in order to establish the endoscopic features of primary anorectal melanoma. For the patients whose colonoscopic examinations included endoscopic ultrasound, images were examined to characterize lesions and the depth of infiltration, the results of which were compared with pathological findings after operative resection...
February 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28409562/chemotherapy-induced-intestinal-inflammatory-responses-are-mediated-by-exosome-secretion-of-double-strand-dna-via-aim2-inflammasome-activation
#20
Qiaoshi Lian, Jun Xu, Shanshan Yan, Min Huang, Honghua Ding, Xiaoyu Sun, Aiwei Bi, Jian Ding, Bing Sun, Meiyu Geng
Chemotherapies are known often to induce severe gastrointestinal tract toxicity but the underlying mechanism remains unclear. This study considers the widely applied cytotoxic agent irinotecan (CPT-11) as a representative agent and demonstrates that treatment induces massive release of double-strand DNA from the intestine that accounts for the dose-limiting intestinal toxicity of the compound. Specifically, "self-DNA" released through exosome secretion enters the cytosol of innate immune cells and activates the AIM2 (absent in melanoma 2) inflammasome...
April 14, 2017: Cell Research
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