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Acral melanoma

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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/27911979/clinicopathological-features-and-clinical-outcomes-associated-with-tp53-and-braf-n-on-v-600-mutations-in-cutaneous-melanoma-patients
#2
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/27883956/efficacy-of-braf-inhibitors-in-asian-metastatic-melanoma-patients-potential-implications-of-genomic-sequencing-in-braf-mutated-melanoma
#3
Hee Kyung Kim, Sunyoung Lee, Kyung Kim, Mi Hwa Heo, Hansang Lee, Jinhyun Cho, Nayoung K D Kim, Woongyang Park, Su Jin Lee, Jung Han Kim, Kee-Taek Jang, Sang-Hee Choi, Jeeyun Lee
BACKGROUND: The BRAF inhibitors vemurafenib and dabrafenib are currently the standard treatment for metastatic melanoma with BRAF V600 mutations. However, given the rarity of noncutaneous melanoma, including acral and mucosal subtypes, the efficacy of BRAF inhibitors for this subset of patients has not been extensively investigated. Acquired resistance generally appears 6 to 8 months after treatment with a BRAF inhibitor, and the mechanism of resistance is not well established. METHODS: We examined treatment outcomes for patients diagnosed with metastatic melanoma and treated with BRAF inhibitors at Samsung Medical Center between April 2013 and December 2015...
November 21, 2016: Translational Oncology
https://www.readbyqxmd.com/read/27873341/immunostain-use-in-the-diagnosis-of-melanomas-referred-to-a-tertiary-medical-center-a-15-year-retrospective-review-2001-2015
#4
Randie H Kim, Shane A Meehan
BACKGROUND: Little is known regarding the clinical practice of immunohistochemistry in the diagnosis of melanoma. We aimed to assess the incidence of immunostain usage by referring pathologists and dermatopathologists in melanoma cases sent for consultative review. As a secondary objective, associations between immunostain use and specific melanoma characteristics were also evaluated. METHODS: This is a retrospective review of consultation reports of referred melanomas at a tertiary academic center in New York, New York from 2001-2015...
November 22, 2016: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/27870726/melanocytic-nevi-of-special-sites
#5
Christine S Ahn, Analia Guerra, Omar P Sangüeza
Melanocytic nevi located on specific regions of the body can demonstrate unusual histopathological features such as asymmetry, irregular nesting patterns, pagetoid spread, cytologic atypia, and rarely, mitotic activity. However, despite these features that may raise concern for malignant melanoma, these lesions follow a benign clinical course and do not require intervention. Also known as nevi of special sites or nevi with site-related atypia, these melanocytic nevi were initially described on acral sites and genitalia...
December 2016: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/27864876/kinase-gene-fusions-in-defined-subsets-of-melanoma
#6
Jacqueline Turner, Kasey Couts, Jamie Sheren, Siriwimon Saichaemchan, Witthawat Ariyawutyakorn, Izabela Avolio, Ethan Cabral, Magdelena Glogowska, Carol Amato, Steven Robinson, Jennifer Hintzsche, Allison Applegate, Eric Seelenfreund, Rita Gonzalez, Keith Wells, Stacey Bagby, John Tentler, Aik-Choon Tan, Joshua Wisell, Marileila Varella-Garcia, William Robinson
Genomic rearrangements resulting in activating kinase fusions have been increasingly described in a number of cancers including malignant melanoma, but their frequency in specific melanoma subtypes has not been reported. We used break-apart fluorescence in-situ hybridization (FISH) to identify genomic rearrangements in tissues from 59 patients with various types of malignant melanoma including acral lentiginous, mucosal, superficial spreading, and nodular. We identified four genomic rearrangements involving the genes BRAF, RET, and ROS1...
November 19, 2016: Pigment Cell & Melanoma Research
https://www.readbyqxmd.com/read/27861496/clinical-characteristics-of-malignant-melanoma-in-southwest-china-a-single-center-series-of-82-consecutive-cases-and-a-meta-analysis-of-958-reported-cases
#7
Jia Yu, Xue Luo, Hui Huang, Zhifang Zhai, Zhu Shen, Hui Lin
PURPOSE: The present study determined the clinical characteristics and prognostic factors in patients with malignant melanoma based on a series of 82 cases from January 2009 to December 2014 in Southwest Hospital and a meta-analysis (including 12 articles) involving 958 patients in China. MATERIALS AND METHODS: The database elements included basic demographic data and prognosticators which were extracted from medical records. Statistical analyses of survival, and multivariate analyses of factors associated with survival were performed using the Kaplan-Meier method, and the Cox proportional hazard model, respectively...
2016: PloS One
https://www.readbyqxmd.com/read/27858163/expression-of-piwil3-in-primary-and-metastatic-melanoma
#8
Thilo Gambichler, Christina Kohsik, Ann-Kathrin Höh, Kerstin Lang, Heiko U Käfferlein, Thomas Brüning, Eggert Stockfleth, Markus Stücker, Max Dreißigacker, Michael Sand
PURPOSE: The PIWI-interacting RNA machinery in malignant melanoma (MM) has not been sufficiently studied. We aimed to investigate the PIWIL3 expression profiles in primary melanomas and metastases of MM including a correlation with clinical data. METHODS: We studied 161 primary melanomas, 45 lymph node metastases, and 16 distant metastases of 183 patients with MM. We used immunohistochemistry to assess PIWIL3 protein expression in situ. The relationship between the immunoreactivity of PIWIL3 and clinical data was statistically evaluated...
November 17, 2016: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/27785785/epidemiological-trends-and-clinicopathological-features-of-cutaneous-melanoma-in-sporadic-and-xeroderma-pigmentosum-tunisian-patients
#9
Chokri Naouali, Meriem Jones, Imen Nabouli, Manel Jerbi, Haifa Tounsi, Mariem Ben Rekaya, Melika Ben Ahmed, Balkiss Bouhaouala, Olfa Messaoud, Aida Khaled, Mohamed Zghal, Sonia Abdelhak, Samir Boubaker, Houda Yacoub-Youssef
BACKGROUND: Epidemiological features and trends of cutaneous melanoma (CM) in North-African populations remain unclear. Those populations are of particular interest as they belong to a mosaic of various other origins (sub-Saharan, European Ancestry, and North-African Berbers). The aim of this study is to draw epidemiological profile and clinicopathological features of CM in the Tunisian population. METHODS: Incidence analyses were based on data from regional cancer registries...
October 26, 2016: International Journal of Dermatology
https://www.readbyqxmd.com/read/27746632/expression-of-phosphatase-and-tensin-homologue-phospho-akt-and-p53-in-acral-benign-and-malignant-melanocytic-neoplasms-benign-nevi-dysplastic-nevi-and-acral-melanomas
#10
So Min Lyu, Ju Yeon Wu, Ji Yeon Byun, Hae Young Choi, Sang Hee Park, You Won Choi
BACKGROUND: The role of the phosphatidylinositol-3 kinase signaling pathway in the development of acral melanoma has recently gained evidence. Phosphatase and tensin homologue (PTEN), one of the key molecules in the pathway, acts as a tumor suppressor through either an Akt-dependent or Akt-independent pathway. Akt accelerates degradation of p53. OBJECTIVE: We assessed the expression of PTEN, phospho-Akt (p-Akt), and p53 by immunohistochemistry in benign acral nevi, acral dysplastic nevi, and acral melanomas in the radial growth phase and with a vertical growth component...
October 2016: Annals of Dermatology
https://www.readbyqxmd.com/read/27745646/acral-melanoma-mimicking-subungual-hematoma
#11
Teresa Deinlein, Rainer Hofmann-Wellenhof, Iris Zalaudek
No abstract text is available yet for this article.
November 2016: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/27689028/cutaneous-melanoma-in-asians
#12
REVIEW
Sang Yub Kim, Sook Jung Yun
Malignant melanoma is a rare disease in Asians but potentially the most aggressive form of skin cancer worldwide. It can occur in any melanocyte-containing anatomic site. Four main cutaneous melanoma subtypes are recognized: lentigo maligna melanoma, superficial spreading melanoma, acral lentiginous melanoma (ALM), and nodular melanoma. Generally, excessive exposure to ultraviolet (UV) radiation increases the risk of melanoma. The exception is ALM, which is the most common melanoma subtype in Asians and is not associated with UV radiation...
September 2016: Chonnam Medical Journal
https://www.readbyqxmd.com/read/27682856/multiple-clear-cell-acanthomas-and-a-sebaceous-lymphadenoma-presenting-in-a-patient-with-cowden-syndrome-a-case-report
#13
Silvia Potenziani, Danielle Applebaum, Bhuvaneswari Krishnan, Carolina Gutiérrez, A Hafeez Diwan
Cowden Syndrome (CS) is an uncommon autosomal dominant multiorgan/system genodermatosis. It is characterized by the development of multiple hamartomas of endodermal, mesodermal and ectodermal origin, an increased lifetime risk of breast, thyroid, endometrial, and other cancers and an identifiable germline mutation. Mucocutaneous hamartomas are the most common lesions seen and mainly include facial trichilemmomas, oral mucosal papillomas, and benign acral keratoses. Herein, we report a case of a 63-year-old Caucasian male with a long-established diagnosis of CS and history of thyroid cancer, colonic polyps, and innumerable trichilemmomas, seborrheic keratoses, squamous papillomas, and non-melanoma skin cancers excised in the past...
September 28, 2016: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/27649397/the-advantages-of-dermoscopy-in-the-diagnosis-of-acral-melanoma-from-other-podiatric-lesions-a-literature-review
#14
Mansi Patel, HyunJi Boo, Suganthi Kandasamy, Dhagash Patel, Anthony Iorio
INTRODUCTION AND OBJECTIVES: Melanoma is one of the most common primary malignant tumors arising in the lower extremity. It is crucial to diagnose melanoma as quickly and as efficiently as possible for a better prognosis. The use of dermoscopy is helpful in diagnosing such conditions. Dermoscopy is a non-invasive, in-vivo technique primarily used in the examination of pigmented skin lesions. This procedure allows the visualization of subsurface skin structures in the epidermis, dermoepidermal junction, and upper dermis - structures not visible to the naked eye...
September 2016: Journal of the American Podiatric Medical Association
https://www.readbyqxmd.com/read/27642170/surgical-excision-margin-for-primary-acral-melanoma
#15
Kyeong-Tae Lee, Eun-Ji Kim, Dong-Youn Lee, Jung-Han Kim, Kee-Taek Jang, Goo-Hyun Mun
BACKGROUND AND OBJECTIVES: This study aimed to evaluate treatment outcomes of acral melanoma (AM) based on the excision margin. METHODS: A retrospective cohort study was conducted for patients with primary AM, analyzing recurrence rates, local and in-transit recurrence-free survival (LITRFS), disease-free survival (DFS), and melanoma-specific survival (MSS). RESULTS: Data from 129 patients of AM were analyzed. In 53 patients with thin AM (thickness ≤1 mm), neither recurrence nor mortality occurred regardless of whether the excision margin was >1 cm or not...
September 19, 2016: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/27601330/histopathological-diagnosis-of-acral-lentiginous-melanoma-in-early-stages
#16
Angel Fernandez-Flores, David S Cassarino
Acral lentiginous melanoma is a rare variant of melanoma that is associated with a relatively low survival rate. The latter is partly due to the advanced stage in which the tumor is usually diagnosed. The diagnostic delay is mainly due to difficulties in identifying the very early histopathological signs of acral melanoma. The current article is a review of diagnostic clues, concepts, and definitions from the literature, as well as illustrating examples from our own archives. We have sought to provide an article that can be easily consulted in difficult cases of acral lentiginous melanoma...
August 20, 2016: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/27598440/diagnostic-change-from-atypical-intraepidermal-melanocytic-proliferation-to-melanoma-after-conventional-excision-a-single-academic-institution-cross-sectional-study
#17
Junqian Zhang, Christopher J Miller, Joseph F Sobanko, Thuzar M Shin, Jeremy R Etzkorn
BACKGROUND: Atypical intraepidermal melanocytic proliferation (AIMP) is a histopathologic diagnosis with uncertain malignant potential and presents a surgical management dilemma for clinicians. OBJECTIVE: To identify the associated clinical and histopathologic factors and the frequency of diagnostic change to melanoma after conventional excision of AIMP. METHODS: Retrospective cross-sectional study of 306 AIMPs treated by conventional excision...
October 2016: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/27582542/propranolol-induced-g0-g1-s-phase-arrest-and-apoptosis-in-melanoma-cells-via-akt-mapk-pathway
#18
Chengfang Zhou, Xiang Chen, Weiqi Zeng, Cong Peng, Gang Huang, Xian'an Li, Zhengxiao Ouyang, Yi Luo, Xuezheng Xu, Biaobo Xu, Weili Wang, Ruohui He, Xu Zhang, Liyang Zhang, Jie Liu, Todd C Knepper, Yijing He, Howard L McLeod
Both preclinical and epidemiology studies associate β-adrenoceptors-blockers (β-blockers) with activity against melanoma. However, the underlying mechanism is still unclear, especially in acral melanoma. In this study, we explored the effect of propranolol, a non-selective β-blocker, on the A375 melanoma cell line, two primary acral melanoma cell lines (P-3, P-6) and mice xenografts. Cell viability assay demonstrated that 50μM-400μM of propranolol inhibited viability in a concentration and time dependent manner with an IC50 ranging from 65...
August 25, 2016: Oncotarget
https://www.readbyqxmd.com/read/27576582/racial-differences-in-six-major-subtypes-of-melanoma-descriptive-epidemiology
#19
Yu Wang, Yinjun Zhao, Shuangge Ma
BACKGROUND: Melanoma accounts for the majority of skin cancer deaths. It has over thirty different subtypes. Different races have been observed to differ in multiple aspects of melanoma. METHODS: SEER (Surveillance, Epidemiology, and End Results) data on six major subtypes, namely melanoma in situ (MIS), superficial spreading melanoma (SSM), nodular melanoma (NM), lentigo maligna melanoma (LMM), acral lentiginous melanoma malignant (ALM), and malignant melanoma NOS (NOS), were analyzed...
2016: BMC Cancer
https://www.readbyqxmd.com/read/27559525/acral-lentiginous-melanoma-with-multiple-brain-metastases-in-an-indian-male
#20
Kumar Parimalam, Jeyalakshmidevi Namasivayam, Subha Ramasamy, Suganthy Valavan
No abstract text is available yet for this article.
July 2016: Indian Dermatology Online Journal
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