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Melanoma in situ

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https://www.readbyqxmd.com/read/28525420/diagnostic-criteria-in-intraepithelial-pagetoid-neoplasms-a-histopathologic-study-and-evaluation-of-select-features-in-paget-disease-bowen-disease-and-melanoma-in-situ
#1
Amira Elbendary, Ruzeng Xue, Manuel Valdebran, Kara Melissa T Torres, Kruti Parikh, Inas Elattar, Eun Ji Kwon, Dirk M Elston
BACKGROUND: Paget disease, Bowen disease, and malignant melanoma in situ are intraepidermal neoplasms, characterized by the presence of pagetoid scatter of atypical cells in the epidermis. This study reviewed the frequency of select histologic criteria to validate their usefulness in the histologic distinction between these entities. METHODS: One hundred forty-four specimens with the diagnosis of Bowen disease, 144 specimens with Paget disease (mammary and extramammary), and 144 specimens with malignant melanoma in situ were examined microscopically to define frequencies of select histologic criteria present in each disease...
June 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28512666/diagnostic-efficacy-of-digital-dermoscopy-and-clinical-findings-in-thin-melanoma-of-the-lower-limbs
#2
Emi Dika, Marco Adriano Chessa, Simone Ribero, Pier A Fanti, Carlotta Gurioli, Martina Lambertini, Carlotta Baraldi, Annalisa Patrizi
The introduction of dermoscopy has improved the accuracy of diagnosis of melanoma. However, early stage melanoma can be difficult to diagnose. Eighty-nine cases of thin melanoma with a Breslow thickness ≤1 mm located on the lower limb and diagnosed between 2008 and 2016 were assessed using 4 dermoscopic algorithms: (i) modified pattern analysis; (ii) ABCD rule of dermoscopy; (iii) 7-point checklist; and (iv) Menzies' method. Two groups of early stage melanomas of the legs were identified: "difficult to diagnose melanomas" (DDM) and "non-difficult to diagnose melanomas" (NDDM)...
May 17, 2017: Acta Dermato-venereologica
https://www.readbyqxmd.com/read/28512610/melanoma-is-skin-deep-a-3d-reconstruction-technique-for-computerized-dermoscopic-skin-lesion-classification
#3
T Y Satheesha, D Satyanarayana, M N Giri Prasad, Kashyap D Dhruve
Melanoma mortality rates are the highest amongst skin cancer patients. Melanoma is life threating when it grows beyond the dermis of the skin. Hence, depth is an important factor to diagnose melanoma. This paper introduces a non-invasive computerized dermoscopy system that considers the estimated depth of skin lesions for diagnosis. A 3-D skin lesion reconstruction technique using the estimated depth obtained from regular dermoscopic images is presented. On basis of the 3-D reconstruction, depth and 3-D shape features are extracted...
2017: IEEE Journal of Translational Engineering in Health and Medicine
https://www.readbyqxmd.com/read/28504388/challenges-of-treating-melanoma-in%C3%A2-situ-lentigo-maligna-type-is-pathological-clearance-the-gold-standard
#4
S M Swetter
No abstract text is available yet for this article.
May 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/28485882/long-term-evaluation-of-the-efficacy-of-digital-dermatoscopy-monitoring-at-a-tertiary-referral-center
#5
Christoph Rinner, Philipp Tschandl, Christoph Sinz, Harald Kittler
BACKGROUND AND OBJECTIVES: We examined the value of monitoring patients with multiple nevi using sequential digital dermatoscopy imaging at a tertiary referral center. PATIENTS AND METHODS: This is a retrospective cohort study including 2,824 patients and 23,241 monitored lesions. We calculated trends in key parameters such as the number of melanomas and nevi monitored and excised. RESULTS: During follow-up, we excised 1,266 lesions in 709 patients, including 146 (11...
May 2017: Journal der Deutschen Dermatologischen Gesellschaft, Journal of the German Society of Dermatology: JDDG
https://www.readbyqxmd.com/read/28481233/synthesis-of-europium-doped-fluorapatite-nanorods-and-their-biomedical-applications-in-drug-delivery
#6
Haifeng Zeng, Xiyu Li, Muyang Sun, Sufan Wu, Haifeng Chen
Europium (Eu)-doped fluorapatite (FA) nanorods have a biocompatibility similar to that of hydroxyapatite (HA) for use as cell imaging biomaterials due to their luminescent property. Here, we discuss the new application of europium-doped fluorapatite (Eu-FA) nanorods as an anticancer drug carrier. The Eu-FA nanorods were prepared by using a hydrothermal method. The morphology, crystal structure, fluorescence, and composition were investigated. The specific crystal structure enables the effective loading of drug molecules...
May 6, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28454272/dinitrophenyl-hapten-with-laser-immunotherapy-for-advanced-malignant-melanoma-a-clinical-study
#7
Dian-Jun Chen, Xiao-Song Li, Hui Zhao, Yan Fu, Huan-Rong Kang, Fang-Fang Yao, Jia Hu, Nan Qi, Huan-Huan Zhang, Nan Du, Wei-R Chen
The present study aimed to evaluate the efficacy and safety of in situ immunotherapy with dinitrophenyl (DNP) hapten in combination with laser therapy for patients with malignant melanoma (MM). Between February 2008 and March 2012, 72 patients with stage III or IV MM were enrolled. Patients received in situ DNP alone (n=32) or in combination with laser therapy (n=32), and each group received dacarbazine chemotherapy. The levels of peripheral cluster of differentiation (CD)4(+)CD25(+) regulatory T cells (Tregs), interleukin (IL)-10 and tumor growth factor (TGF)-β were detected by ELISA...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28448663/prame-as-a-potential-target-for-immunotherapy-in-metastatic-uveal-melanoma
#8
Gülçin Gezgin, Sietse J Luk, Jinfeng Cao, Mehmet Dogrusöz, Dirk M van der Steen, Renate S Hagedoorn, Daniëlle Krijgsman, Pieter A van der Velden, Matthew G Field, Gregorius P M Luyten, Karoly Szuhai, J William Harbour, Ekaterina S Jordanova, Mirjam H M Heemskerk, Martine J Jager
Importance: Uveal melanoma (UM) is an intraocular primary malignant neoplasm that often gives rise to metastatic disease for which there are no effective therapies. A substantial proportion of UMs express the cancer-testis antigen PRAME (preferentially expressed antigen in melanoma), which can potentially be targeted by adoptive T-cell therapy. Objective: To determine whether there may be a rationale for PRAME-directed T-cell therapy for metastatic UM. Design, Setting, and Participants: An experimental study using a retrospective cohort of 64 patients with UM (median follow-up, 62 months) was conducted from January 8, 2015, to November 20, 2016, at the Leiden University Medical Center...
April 27, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/28436025/melanoma-in%C3%A2-situ-of-lentigo-maligna-type-in-a-young-woman
#9
Matthew F Helm, Michael J Bax, David J Augenblick, Catherine G Chung
No abstract text is available yet for this article.
April 23, 2017: International Journal of Dermatology
https://www.readbyqxmd.com/read/28433076/identification-of-ntrk3-fusions-in-childhood-melanocytic-neoplasms
#10
Lu Wang, Klaus J Busam, Ryma Benayed, Robert Cimera, Jiajing Wang, Ryan Denley, Mamta Rao, Ruth Aryeequaye, Kerry Mullaney, Long Cao, Marc Ladanyi, Meera Hameed
Spitzoid neoplasms are a distinct group of melanocytic tumors. Genetically, they lack mutations in common melanoma-associated oncogenes. Recent studies have shown that spitzoid tumors may contain a variety of kinase fusions, including ROS1, NTRK1, ALK, BRAF, and RET fusions. We report herein the discovery of recurrent NTRK3 gene rearrangements in childhood melanocytic neoplasms with spitzoid and/or atypical features, based on genome-wide copy number analysis by single-nucleotide polymorphism array, which showed intragenic copy number changes in NTRK3...
May 2017: Journal of Molecular Diagnostics: JMD
https://www.readbyqxmd.com/read/28417551/morbidity-and-mortality-after-treatment-of-ewing-sarcoma-a-single-institution-experience
#11
Danielle Novetsky Friedman, Katherine Chastain, Joanne F Chou, Chaya S Moskowitz, Roberto Adsuar, Leonard H Wexler, Alexander J Chou, Amelia DeRosa, Joanne Candela, Heather Magnan, Shawn Pun, Tamara Kahan, Suzanne L Wolden, Paul A Meyers, Kevin C Oeffinger
BACKGROUND: Children, adolescents, and young adults treated for Ewing sarcoma (ES) are at risk for disease-related and treatment-related complications. We aimed to describe early and late overall mortality, cause-specific mortality, and key adverse health outcomes in a large, single-institutional cohort of patients with ES. METHODS: Patients with ES diagnosed at age less than 40 years and treated at Memorial Sloan Kettering between 1974 and 2012 were included. Overall survival was estimated using Kaplan-Meier methods...
April 18, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28411847/the-molecular-revolution-in-cutaneous-biology-era%C3%A2-of-cytogenetics-and-copy-number%C3%A2-analysis
#12
REVIEW
Jürgen Bauer
Development of karyotyping techniques in the 1950s sparked groundbreaking reports of chromosomal aberrations in cancer, such as the Philadelphia chromosome in chronic myelogenous leukemia in 1960, followed by a number of others. Spatial resolution of karyotyping is limited and vital tumor cells are required for metaphase preparation. To overcome these limitations, DNA hybridization techniques were developed. In situ hybridization of radioactively or fluorescence labeled RNA probes onto tumor samples allowed the identification of specific genomic regions, translocations and copy number alterations...
May 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28408199/interleukin-15-and-cisplatin-co-encapsulated-thermosensitive-polypeptide-hydrogels-for-combined-immuno-chemotherapy
#13
Xilong Wu, Yundi Wu, Hongbo Ye, Shuangjiang Yu, Chaoliang He, Xuesi Chen
In situ-forming thermosensitive hydrogels based on poly(ethylene glycol)-poly(γ-ethyl-l-glutamate) diblock copolymers (mPEG-b-PELG) were prepared for the co-delivery of interleukin-15 (IL-15) and cisplatin (CDDP). The polypeptide-based hydrogels as local drug delivery carriers could reduce the systemic toxicity, degrade thoroughly within 3weeks after subcutaneous injection into rats and display an acceptable biocompatibility. When incubated with mouse melanoma B16 cells, only the CDDP-treated groups had significant effects on the S phase cell-cycle arrest in melanoma cells...
April 10, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28397109/increasing-frequency-of-seborrheic-keratosis-diagnoses-as-a-favorable-consequence-of-teledermatology-based-skin-cancer-screening-a-cross-sectional-study-of-34-553-patients
#14
David Moreno-Ramírez, Jesús Raya-Maldonado, Macarena Morales-Conde, Teresa Ojeda-Vila, Francisco J Martín-Gutiérrez, Andrés Ruíz-de-Casas, Almudena Fernández-Orland, Herrerías-Esteban Jm, Lara Ferrándiz
BACKGROUND: Screening of skin cancer by teledermatology (TD) has improved the early detection of skin cancer by enhancing access to skin cancer clinics. OBJECTIVE: We sought to analyze how TD-based skin cancer screening has changed the frequency of consultations for benign lesions. PATIENTS AND METHODS: A cross-sectional study including teleconsultations received during a 7-year period was conducted to analyze and compare the trendlines of each lesion type over the study period...
April 10, 2017: American Journal of Clinical Dermatology
https://www.readbyqxmd.com/read/28392162/oncolytic-virotherapy-a-contest-between-apples-and-oranges
#15
REVIEW
Stephen J Russell, Kah-Whye Peng
Viruses can be engineered or adapted for selective propagation in neoplastic tissues and further modified for therapeutic transgene expression to enhance their antitumor potency and druggability. Oncolytic viruses (OVs) can be administered locally or intravenously and spread to a variable degree at sites of tumor growth. OV-infected tumor cells die in situ, releasing viral and tumor antigens that are phagocytosed by macrophages, transported to regional lymph nodes, and presented to antigen-reactive T cells, which proliferate before dispersing to kill uninfected tumor cells at distant sites...
May 3, 2017: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/28385366/prognostic-factors-in-head-and-neck-mucosal-malignant-melanoma
#16
Şenol Çomoğlu, Beldan Polat, Mehmet Çelik, Bayram Şahin, Necati Enver, Meryem Nesil Keleş, Şule Öztürk Sarı
OBJECTIVE: Primary mucosal malignant melanoma of the head and neck (HN-PMMM) is an aggressive and uncommon neoplasm. Herein, we present a series of 33 patients and the results of treatment, and aimed to determine prognostic factors in HN-PMMM. METHODS: Patients who were diagnosed as having HN-PMMM in our reference hospital, between 2005 and 2014 were evaluated. Thirty-three of these patients who had follow-up data were included. Surgical margin status was extracted from the original pathology reports...
April 3, 2017: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/28384696/detection-of-occult-invasion-in-melanoma-in-situ-reply
#17
May P Chan, Douglas R Fullen, Timothy M Johnson
No abstract text is available yet for this article.
April 5, 2017: JAMA Dermatology
https://www.readbyqxmd.com/read/28384663/detection-of-occult-invasion-in-melanoma-in-situ
#18
Nemanja Rodic, Earl J Glusac
No abstract text is available yet for this article.
April 5, 2017: JAMA Dermatology
https://www.readbyqxmd.com/read/28369774/temporal-trends-in-healthcare-utilization-following-primary-melanoma-diagnosis-among-medicare-beneficiaries
#19
J P Lott, Q Wang, L J Titus, T Onega, H D Nelson, M A Weinstock, J G Elmore, A N A Tosteson
BACKGROUND: Despite increasing melanoma incidence in the United States, little is known about the impact of primary melanoma diagnosis on healthcare utilization and changes in utilization over time. OBJECTIVE: To evaluate population-based temporal trends in healthcare utilization following primary melanoma diagnosis. METHODS: We conducted a before-after multiple time series study of Medicare beneficiaries ages ≥66 years with primary melanoma diagnoses between 2000 and 2009 using the Surveillance, Epidemiology, and End Results-Medicare database...
March 30, 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/28362709/a-diagnostic-algorithm-combining-immunohistochemistry-and-molecular-cytogenetics-to-diagnose-challenging-melanocytic-tumors
#20
Sylvia Redon, Briac Guibourg, Matthieu Talagas, Pascale Marcorelles, Arnaud Uguen
Some melanocytic tumors are diagnostic challenges and require ancillary tools in helping the pathologists to determine their potential of malignancy. We intend to propose a diagnostic algorithm in helping to classify challenging melanocytic tumors combining histology, immunohistochemistry, and cytogenetics. We report on 24 spitzoid and/or misdiagnosed melanocytic tumors studied with a triple p16, Ki-67, and HMB45 immunohistochemistry score, fluorescent in situ hybridization (FISH) with melanoma-dedicated and non-melanoma-dedicated probes and comparative genomic hybridization on DNA microarray (CGH array)...
March 30, 2017: Applied Immunohistochemistry & Molecular Morphology: AIMM
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