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Melanoma pathology

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https://www.readbyqxmd.com/read/27926588/incidence-trends-and-clinical-pathological-characteristics-of-invasive-cutaneous-melanoma-from-1980-to-2010-in-the-canton-of-zurich-switzerland
#1
Remo Minini, Sabine Rohrmann, Ralph Braun, Dimitri Korol, Silvia Dehler
The aims of this paper are to describe the incidence trends of invasive cutaneous melanoma in the Canton of Zurich and to evaluate clinical and pathological factors such as cancer subtype, localization, age and Breslow thickness. A retrospective analysis was carried out with data from the population-based Cancer Registry of Zurich and Zug located in Zurich. A total of 8469 cases in 8034 different patients of invasive cutaneous melanoma were registered for the period 1980-2010 in the Canton of Zurich. Incidence trends were age standardized to the European standard population...
December 6, 2016: Melanoma Research
https://www.readbyqxmd.com/read/27920706/ipilimumab-induced-enteritis-without-colitis-a-new-challenge
#2
Marcus Messmer, Sunita Upreti, Yaman Tarabishy, Nikhilesh Mazumder, Reezwana Chowdhury, Mark Yarchoan, Matthias Holdhoff
INTRODUCTION: Ipilimumab is an immune checkpoint inhibitor targeting cytotoxic T-lymphocyte associated antigen 4 (CTLA4), approved to treat metastatic melanoma. It was the first therapy shown to prolong survival in a large, randomized clinical trial. However, immune-related adverse events are common and can be severe. Enterocolitis is a common adverse event with ipilimumab, but enteritis without colitis has not been previously described. CASE REPORT: An 83-year-old man presented to our hospital with grade 3 diarrhea for 5 days...
September 2016: Case Reports in Oncology
https://www.readbyqxmd.com/read/27920565/electrochemotherapy-induces-apoptotic-death-in-melanoma-metastases-a-histologic-and-immunohistochemical-investigation
#3
Laura Bigi, Giovanna Galdo, Anna Maria Cesinaro, Cristina Vaschieri, Alessandra Marconi, Carlo Pincelli, Fabrizio Fantini
BACKGROUND: Electrochemotherapy (ECT) is increasingly used in the treatment of primary and secondary skin tumors, but little is known about the pathologic mechanism responsible for tumor cell destruction in humans. Knowledge of detailed mechanism of host response after ECT may improve the treatment efficacy related to patient selection and technique refinements. AIM: The aim of the study was to investigate the histopathology and mechanism of cell death after ECT in cutaneous melanoma metastases...
2016: Clinical, Cosmetic and Investigational Dermatology
https://www.readbyqxmd.com/read/27919990/validation-and-enhancement-of-the-clinicopathological-melanoma-nomogram-via-incorporation-of-a-molecular-marker-in-the-primary-tumor
#4
Samer A Naffouje, Rand Naffouje, Jinsong Chen, George I Salti
BACKGROUND/AIM: To validate the melanoma nomogram and improve its function in prediction of nodal dissemination by incorporating a molecular marker in the model. Microphthalmia transcription factor (MITF) is an important regulator of melanocyte homeostasis and differentiation. We have shown that the grade of MITF expression in primary melanoma cells can serve as a predictor of nodal status. Many efforts to identify the nodal spread in cutaneous melanoma using non-invasive means have been recently undertaken...
December 2016: Anticancer Research
https://www.readbyqxmd.com/read/27916050/-the-clinical-and-pathological-features-of-85-cases-with-positive-cerebrospinal-fluid-cytology-by-thin-layer-centrifugal-cytological-test
#5
W Gao, Z Li, L M Wang, F Lian, C C Liu, D H Lu, Y S Piao
Objective: To evaluate cytological test of cerebrospinal fluid in the diagnosis of meningeal dissemination of tumor cells. Methods: The clinical and imaging features of 85 cases with tumor cells diagnosed by thin-layer centrifugal cytological test of cerebrospinal fluid were retrospectively reviewed. The characteristics of cellular morphology and immunocytochemical staining were analyzed. Results: The main presentations of all the patinets was meningeal irritation and neurological dysfunction. The features of the brain MRI were meningeal thicking and enhancement, intracranial abnormal signals and intracranial space occupying lesion in part of the patients...
December 1, 2016: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
https://www.readbyqxmd.com/read/27915116/7t-mr-of-intracranial-pathology-preliminary-observations-and-comparisons-to-3t-and-1-5t
#6
Emmanuel C Obusez, Mark Lowe, Se-Hong Oh, Irene Wang, M S Jennifer Bullen, Paul Ruggieri, Virginia Hill, Daniel Lockwood, Todd Emch, Doksu Moon, Gareth Loy, Jonathan Lee, Matthew Kiczek, D O Manoj Massand, Volodymyr Statsevych, Todd Stultz, Stephen E Jones
PURPOSE: There have been an increasing number of studies involving ultra-high-field 7T of intracranial pathology, however, comprehensive clinical studies of neuropathology at 7T still remain limited. 7T has the advantage of a higher signal-to-noise ratio and a higher contrast-to-noise ratio, compared to current low field clinical MR scanners. We hypothesized 7T applied clinically, may improve detection and characterization of intracranial pathology. MATERIALS AND METHODS: We performed an IRB-approved 7T prospective study of patients with neurological disease who previously had lower field 3T and 1...
November 30, 2016: NeuroImage
https://www.readbyqxmd.com/read/27911979/clinicopathological-features-and-clinical-outcomes-associated-with-tp53-and-braf-n-on-v-600-mutations-in-cutaneous-melanoma-patients
#7
Dae Won Kim, Lauren E Haydu, Aron Y Joon, Roland L Bassett, Alan E Siroy, Michael T Tetzlaff, Mark J Routbort, Rodabe N Amaria, Jennifer A Wargo, Jennifer L McQuade, Jan Kemnade, Patrick Hwu, Scott E Woodman, Jason Roszik, Kevin B Kim, Jeffrey E Gershenwald, Alexander J Lazar, Michael A Davies
BACKGROUND: BRAF(V600) , NRAS, TP53, and BRAF(Non-V600) are among the most common mutations detected in non-acral cutaneous melanoma patients. Although several studies have identified clinical and pathological features associated with BRAF(V600) and NRAS mutations, limited data are available regarding the correlates and significance of TP53 and BRAF(Non-V600) mutations. METHODS: This study analyzed the patient demographics, primary tumor features, and clinical outcomes of a large cohort of non-acral cutaneous melanoma patients who had undergone clinically indicated molecular testing (n = 926)...
December 2, 2016: Cancer
https://www.readbyqxmd.com/read/27911584/clinicopathological-characteristics-and-prognosis-for-survival-after-enucleation-of-uveal-melanoma-in-chinese-patients-long-term-follow-up
#8
Han Yue, Jiang Qian, Yifei Yuan, Rui Zhang, Yingwen Bi, Fengxi Meng, Yi Xuan
PURPOSE: To summarize the clinicopathological characteristics and prognosis of uveal melanoma (UM) after enucleation in Chinese patients. METHODS: Between 2003 and 2012, a series of 171 patients with UM received enucleation at the Eye & ENT Hospital of Fudan University in Shanghai. Patient clinical information was collected. Pathological examination and BAP1 staining of the enucleated eyes were conducted. Univariate and multivariate Cox proportional hazard regressions were conducted to determine the risk factors, and the survival rates were calculated and compared...
December 2, 2016: Current Eye Research
https://www.readbyqxmd.com/read/27899960/genetics-and-epigenetics-of-melanoma
#9
Xiao-Ying Zhang, Pei-Ying Zhang
Cancer affects multiple organs in the body Malignant melanoma involves the invasion of skin and occasionally mucosal membrane or eye choroidal tissues. The incidence of cutaneous malignant melanoma is on the increase worldwide and is a major concern in current research. The increase is associated with UV irradiation-induced genetic aberrations that stimulate skin melanocytes to develop unlimited growth. This eventually leads to cell immortality, which in turn causes metastases. The present review examines the genetics and epigenetics of this pathological state together with recent perspectives of the therapeutic management of disease...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27895731/advantages-and-disadvantages-of-f-18-fluorodeoxyglucose-positron-emission-tomography-computed-tomography-in-carcinoma-of-unknown-primary
#10
Xiaozhou Yu, Xiaofeng Li, Xiuyu Song, Dong Dai, Lei Zhu, Yanjia Zhu, Jian Wang, Huiqin Zhao, Wengui Xu
Carcinoma of unknown primary is a type of malignant disease where the primary carcinoma cannot be identified by conventional examination, which presents challenges in diagnosis and therapy. This study aims to evaluate the detailed clinical value and indications of using fluorine-18-2-fluoro-2-deoxy-D-glucose positron emission tomography/computed tomography (F-18 FDG PET/CT) in a large sample. A total of 449 patients who were selected under strict standards were retrospectively included in this study. F-18 FDG PET/CT accurately detected the primary carcinoma in 115 of 449 patients whose primaries could not be detected by conventional examination (25...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27893841/seroprevalence-of-cutaneous-human-papillomaviruses-and-the-risk-of-external-genital-lesions-in-men-a-nested-case-control-study
#11
Shams Rahman, Dana E Rollison, Christine M Pierce Campbell, Tim Waterboer, Angelika Michel, Michael Pawlita, Luisa L Villa, Eduardo Lazcano Ponce, Wei Wang, Amy R Borenstein, Anna R Giuliano
BACKGROUND: A variety of cutaneous human papillomaviruses (HPV) are detectable in genital epithelial lesions in men and non-melanoma skin cancer patients. It remains unclear whether these viruses are associated causally with skin lesions. To date, no study has prospectively examined the association between cutaneous HPV seropositivity and development of external genital lesions (EGLs) in men. OBJECTIVES: To examine the association between seropositivity to cutaneous HPV types and the risk of subsequent development of EGLs...
2016: PloS One
https://www.readbyqxmd.com/read/27893622/image-quality-and-artifacts-on-optical-coherence-tomography-angiography-comparison-of-pathologic-and-paired-fellow-eyes-in-65-patients-with-unilateral-choroidal-melanoma-treated-with-plaque-radiotherapy
#12
Emil A T Say, Sandor Ferenczy, George N Magrath, Wasim A Samara, Chloe T L Khoo, Carol L Shields
PURPOSE: To study image quality and artifacts seen on optical coherence tomography angiography (OCTA). METHODS: Sixty-five consecutive patients with unilateral posterior uveal melanoma treated with plaque radiotherapy had OCTA during follow-up. Optical coherence tomography angiography was performed on both the affected and fellow eye. Signal strength and frequency of image artifacts on en face images were compared between affected and fellow eyes. RESULTS: A total of 130 eyes in 65 patients were analyzed, the mean age at time of OCTA was 55 years (median: 56, range: 12-81 years), and 39 (39/65, 60%) were female...
November 23, 2016: Retina
https://www.readbyqxmd.com/read/27889857/accurate-control-of-17%C3%AE-estradiol-long-term-release-increases-reliability-and-reproducibility-of-preclinical-animal-studies
#13
Céline Gérard, Anne Gallez, Charline Dubois, Pierre Drion, Philippe Delahaut, Etienne Quertemont, Agnès Noël, Christel Pequeux
Estrogens are the subject of intensive researches aiming to elucidate their mechanism of action on the various tissues they target and especially on mammary gland and breast cancer. The use of ready-to-use slow releasing devices to administer steroids, especially estrogens, to small experimental animals remains the method of choice in terms of animal well-being and of safety for both the researcher and the animal. In this study, we evaluated and compared, in vitro and in vivo, the release kinetic of estradiol (E2) over sixty days from two different slow-releasing systems: the matrix pellet (MP) and the reservoir implant (RI)...
November 26, 2016: Journal of Mammary Gland Biology and Neoplasia
https://www.readbyqxmd.com/read/27889798/selective-effect-of-cytokine-induced-killer-cells-on-survival-of-patients-with-early-stage-melanoma
#14
Hong Li, Lan Huang, Linbo Liu, Ximei Wang, Zhen Zhang, Dongli Yue, Wei He, Kun Fu, Xueli Guo, Jianmin Huang, Xuan Zhao, Yu Zhu, Liping Wang, Wenjie Dong, Yan Yan, Li Xu, Ming Gao, Shuangning Yang, Yi Zhang
Adoptive immunotherapy using cytokine-induced killer (CIK) cells has shown potential antitumor ability against several kinds of cancers, including melanoma. However, little is known about the achievable outcome of CIK cells in melanoma patients at different pathological stages. Here we recruited 55 patients treated with conventional therapy plus CIK cells as the CIK group, and 49 patients treated with conventional therapy alone as the control group. The pathological characteristics were comparable between two groups, with a follow-up period up to 40 months...
November 26, 2016: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/27889782/molecular-pathology-a-requirement-for-precision-medicine-in-cancer
#15
Manfred Dietel
The increasing importance of targeting drugs and check-point inhibitors in the treatment of several tumor entities (breast, colon, lung, malignant melanoma, lymphoma, etc.) and the necessity of a companion diagnostic (HER2, (pan)RAS, EGFR, ALK, BRAF, ROS1, MET, PD-L1, etc.) is leading to new challenges for surgical pathology. Since almost all the biomarkers to be specifically detected are tissue based, a precise and reliable diagnostic is absolutely crucial. To meet this challenge surgical pathology has adapted a number of molecular methods (semi-quantitative immunohistochemistry, fluorescence in situ hybridization, PCR and its multiple variants, (pyro/Sanger) sequencing, next generation sequencing (amplicon, whole exome, whole genome), DNA arrays, methylation analyses, etc...
2016: Oncology Research and Treatment
https://www.readbyqxmd.com/read/27889195/metastasectomy-in-cutaneous-melanoma
#16
REVIEW
K Lasithiotakis, O Zoras
Metastectomy remains the only treatment in malignant melanoma to offer complete pathologic response within a few days of in-hospital stay. It has been historically associated with the highest survival rates in the literature reported for patients of this stage. However, only a minority of patients are amenable to curative resection of distant metastatic disease. This patient group exhibit slow growing oligometastases as indicated by: a. Long disease free interval after treatment of their primary tumours and b...
November 13, 2016: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/27889037/pathology-of-anal-cancer
#17
REVIEW
Paulo M Hoff, Renata Coudry, Camila Motta Venchiarutti Moniz
Anal canal cancer is rather an uncommon disease but its incidence is increasing. Squamous cell carcinoma (SCC) is the most frequent primary anal neoplasm and can encompass a variety of morphologies. HPV infection has a key role in precancerous lesions and cancer development by the production of E6 and E7 oncoproteins. Anal squamous precancerous lesions are now classified according to the same criteria and terminology as their cervical counterparts. The p16 expression by immunohistochemistry is a surrogate marker for human papilloma virus (HPV)...
January 2017: Surgical Oncology Clinics of North America
https://www.readbyqxmd.com/read/27888146/a-rhodium-iii-based-inhibitor-of-autotaxin-with-antiproliferative-activity
#18
Tian-Shu Kang, Wanhe Wang, Hai-Jing Zhong, Jia-Xin Liang, Chung-Nga Ko, Jin-Jian Lu, Xiu-Ping Chen, Dik-Lung Ma, Chung-Hang Leung
BACKGROUND: Cancer of the skin is by far the most common of all cancers. Melanoma accounts for only about 1% of skin cancers but causes a large majority of skin cancer deaths. Autotaxin (ATX), also known as ectonucleotide pyrophosphatase/phosphodiesterase 2 (ENPP2), regulates physiological and pathological functions of lysophosphatidic acid (LPA), and is thus an important therapeutic target. METHODS: We synthesized ten metal-based complexes and a novel cyclometalated rhodium(III) complex 1 was identified as an ATX enzymatic inhibitor using multiple methods, including ATX enzymatic assay, thermal shift assay, western immunoblotting and so on...
November 23, 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27886404/adipophilin-expression-in-cutaneous-malignant-melanoma
#19
Masakazu Fujimoto, Ibu Matsuzaki, Yuki Yamamoto, Akihiko Yoshizawa, Kenji Warigaya, Yoshifumi Iwahashi, Fumiyoshi Kojima, Fukumi Furukawa, Shin-Ichi Murata
BACKGROUND: The lipogenic pathway is upregulated in cancer cells, including melanomas. However, the pathological significance of cellular lipids in melanocytic lesions has yet to be determined. In this study, we evaluated intracytoplasmic lipid droplets in melanocytic nevi (MNs) and malignant melanomas via immunohistochemical analysis of adipophilin (ADP), which coats lipid droplets. METHODS: One hundred primary cutaneous melanocytic lesions (33 MNs, 17 melanomas in situ [MIS], and 50 invasive melanomas [IMs]) were immunostained for ADP...
November 25, 2016: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/27881235/elucidating-the-role-of-the-foxo3a-transcription-factor-in-the-igf-1-induced-migration-and-invasion-of-uveal-melanoma-cancer-cells
#20
Fengxia Yan, Rifang Liao, Mohd Farhan, Tinghuai Wang, Jiashu Chen, Zhong Wang, Peter J Little, Wenhua Zheng
Uveal melanoma (UM) is the most common primary intraocular malignant tumor of adults. It has high mortality rate due to liver metastasis. However, the epidemiology and pathogenesis of liver metastasis in UM are not elucidated and there is no effective therapy available for preventing the development of this disease. IGF-1 is a growth factor involved in cell proliferation, malignant transformation and inhibition of apoptosis. In previous report, IGF-1 receptor was found to be highly expressed in UM and this was related to tumor prognosis...
November 20, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
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