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Melanoma in situ

Mona Taleb, Lydia Choi, Steve Kim
BACKGROUND: After wide local excision of cutaneous melanoma, large defects not amenable to simple primary closure are often covered with skin grafts. We report our experience using the rhomboid and keystone flaps to immediately close large axial and extremity wounds after potentially curative surgery for non-head and neck melanomas. METHODS: Between January 2011 and September 2016, demographic, operative, pathologic, and outcome data were prospectively collected on 60 patients who underwent wide local excision of melanoma followed by immediate flap reconstruction...
October 19, 2016: World Journal of Surgical Oncology
Jack R Staunton, Wilfred Vieira, King Leung Fung, Ross Lake, Alexus Devine, Kandice Tanner
One of the hallmarks of the malignant transformation of epithelial tissue is the modulation of stromal components of the microenvironment. In particular, aberrant extracellular matrix (ECM) remodeling and stiffening enhances tumor growth and survival and promotes metastasis. Type I collagen is one of the major ECM components. It serves as a scaffold protein in the stroma contributing to the tissue's mechanical properties, imparting tensile strength and rigidity to tissues such as those of the skin, tendons, and lungs...
September 2016: Cellular and Molecular Bioengineering
Frédéric Mouriaux, Karine Zaniolo, Marjorie-Allison Bergeron, Cindy Weidmann, Arnaud De La Fouchardière, Frédéric Fournier, Arnaud Droit, Mohib W Morcos, Solange Landreville, Sylvain L Guérin
Purpose: Development of liver metastasis remains the most common cause of mortality in uveal melanoma (UM). A few cell lines cultured from primary UM tumors have been used widely to investigate the pathobiology of UM. However, the translation of basic knowledge to the clinic for the treatment of the metastatic disease has remained incremental at best. In this study, we examined whether the properties of UM cell lines at various passages were similar to their corresponding primary tumors...
October 1, 2016: Investigative Ophthalmology & Visual Science
Nigel G Maher, Annalisa Solinas, Richard A Scolyer, Pascale Guitera
OBJECTIVE: To improve prebiopsy diagnostic accuracy and surgical management of pigmented appearing lesions on the lips, particularly melanoma, using in vivo reflectance confocal microscopy (RCM). STUDY DESIGN: Prospective case series over a 12-month period between 2015 and 2016. The setting was two specialist dermatology referral centers with expertise in confocal microscopy. The study population was a consecutive sample of patients with pigmentation of the lip for which the cause was uncertain clinically, whose differential diagnosis included melanoma, and who had undergone both in vivo RCM and subsequent biopsy...
August 24, 2016: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
J R Marsden, R Fox, N M Boota, M Cook, K Wheatley, L Billingham, N Steven
BACKGROUND: Topical imiquimod is sometimes used for lentigo maligna (LM) in-situ melanoma instead of surgery, but frequency of cure is uncertain. Pathological complete regression (pCR) is a logical surrogate marker for cure after imiquimod, although residual LM and atypical melanocytic hyperplasia may not be reliably distinguished. A trial comparing imiquimod versus surgery might be justified by a high imiquimod pCR rate. OBJECTIVES: Primary: to estimate pCR rate for LM following imiquimod...
October 6, 2016: British Journal of Dermatology
Alicia Brunssen, Annika Waldmann, Nora Eisemann, Alexander Katalinic
BACKGROUND: Benefits of skin cancer screening remain controversial. OBJECTIVE: We sought to update evidence on the impact of skin cancer screening and secondary prevention campaigns on skin cancer incidence, mortality, stage-specific incidence, and interval cancers after negative screening. METHODS: We searched MEDLINE and EMBASE for studies published in English or German between January 1, 2005, and February 4, 2015. Two reviewers independently performed study selection, data extraction, and critical appraisal...
October 1, 2016: Journal of the American Academy of Dermatology
Arnaud Uguen, Marie Uguen, Matthieu Talagas, Eric Gobin, Pascale Marcorelles, Marc De Braekeleer
Malignant melanomas may be difficult to differentiate from benign nevi on the basis of histology. Contrary to nevi, the majority of melanomas harbor chromosomal imbalances. Comparative genomic hybridization-based and fluorescence in situ hybridization (FISH) tests can help differentiating malignant from benign tumors. In the present study, eight-bacterial artificial chromosome (BAC) probes targeting chromosomes 6, 8, 9 and 11 were tested by FISH, and compared with a commercial four-color FISH probe set targeting chromosomes 6 and 11 in a first set of 62 tissue microarray-included melanocytic tumors (47 melanomas and 15 nevi)...
October 2016: Oncology Letters
Kachiu C Lee, Sue Peacock, Martin A Weinstock, Ge Alice Zhao, Stevan R Knezevich, David E Elder, Raymond L Barnhill, Michael W Piepkorn, Lisa M Reisch, Patricia A Carney, Tracy Onega, Jason P Lott, Joann G Elmore
BACKGROUND: The extent of variability in treatment suggestions for melanocytic lesions made by pathologists is unknown. OBJECTIVE: We investigated how often pathologists rendered suggestions, reasons for providing suggestions, and concordance with national guidelines. METHODS: We conducted a cross-sectional survey of pathologists. Data included physician characteristics, experience, and treatment recommendation practices. RESULTS: Of 301 pathologists, 207 (69%) from 10 states (California, Connecticut, Hawaii, Iowa, Kentucky, Louisiana, New Jersey, New Mexico, Utah, and Washington) enrolled...
September 28, 2016: Journal of the American Academy of Dermatology
Min-Qiang Wang, Cui Ye, Shu-Juan Bao, Mao-Wen Xu, Yan Zhang, Ling Wang, Xiao-Qing Ma, Jun Guo, Chang-Ming Li
Monitoring superoxide anion radicals in living cells has been attracting much academic and industrial interest due to the dual roles of the radicals. Herein, we synthesized a novel nanostructured cobalt phosphate nanorods (Co3(PO4)2 NRs) with tunable pore structure using a simple and effective micro-emulsion method and explored their potential utilization in the electrochemical sensing of superoxide anions. As an analytical and sensing platform, the nanoscale biomimetic enzymes Co3(PO4)2 NRs exhibited excellent selectivity and sensitivity towards superoxide anion (O2(•-)) with a low detection limit (2...
September 20, 2016: Biosensors & Bioelectronics
Richard R Winkelmann, Aaron S Farberg, Natalie Tucker, Richard White, Darrell S Rigel
BACKGROUND: Early detection and subsequent management of melanoma are critical for patient survival. New technologies have been developed to augment clinician analysis of suspicious pigmented skin lesions. OBJECTIVE: To determine how information provided by a multispectral digital skin lesion analysis device affects the biopsy decisions of international dermatologists following clinical and dermoscopic pigmented skin lesion evaluation. METHODS: Participants at a dermoscopy conference in Vienna, Austria, were shown 12 clinical and dermoscopic images of pigmented skin lesions (2 melanomas in situ, 3 invasive melanomas, and 7 low-grade dysplastic nevi) previously analyzed by multispectral digital skin lesion analysis...
July 2016: Journal of Clinical and Aesthetic Dermatology
Alvaro Abarzúa-Araya, Aimillios Lallas, Simonetta Piana, Caterina Longo, Elvira Moscarella, Giuseppe Argenziano
Superficial angiomyxomas (SA) of the skin are rare benign cutaneous tumors of soft tissue composed of prominent myxoid matrix and numerous blood vessels. SA are more common in males [1] and they are usually located on the trunk but can also appear on the lower limbs, head, neck and genitalia [2,3]. Treatment is surgical, the total excision is curative, but local recurrence is possible [4]. Herein we present a 72-year-old patient with a history of melanoma in situ, with a new lesion on the lower back.
July 2016: Dermatology Practical & Conceptual
M A Weinstock, J P Lott, Q Wang, L J Titus, T Onega, H D Nelson, L Pearson, M Piepkorn, J G Elmore, A N A Tosteson
BACKGROUND:  Melanoma incidence has increased in recent decades in the United States. Uncertainty remains regarding how much of this increase is attributable to greater melanoma screening activities, potential detection bias and overdiagnosis. OBJECTIVE: Use a cross-sectional ecological analysis to evaluate the relationship between skin biopsy and melanoma incidence rates over a more recent time period than prior reports. METHODS: Examination of the association of biopsy rates and melanoma incidence (invasive and in situ) in SEER-Medicare data (including 10 states) for 2002-2009...
September 17, 2016: British Journal of Dermatology
Guiyang Xia, Yang Li, Jiawen Sun, Liqing Wang, Xiaolong Tang, Bin Lin, Ning Kang, Jian Huang, Lixia Chen, Feng Qiu
A phytochemical study of Physalis pubescens L. afforded twelve compounds, including six new withanolides (1, 4, and 6i-9), four new withanolide glucosides (2, 3, 5, and 6), and two known withanolides (10 and 11). Their structures were established via extensive spectroscopic analysis. The absolute configuration of 3 was assigned using X-ray crystallography, and the absolute configurations of the 1,2-diol moiety in 1 were determined using the in situ dimolybdenum electronic circular dichroism method. Compounds 7, 9, and 10 exhibited significant cytotoxicity against human prostate cancer cells (C4-2B and 22Rvl), human renal carcinoma cells (786-O, A-498, Caki-2, and ACHN), human melanoma cells (A375 and A375-S2), and human normal hepatic cell line (L02) with IC50 values in the range of 0...
November 2016: Steroids
Orit Markowitz, Michelle Schwartz, Sumeet Minhas, Daniel M Siegel
Non-invasive imaging devices are currently being utilized in research and clinical settings to help visualize, characterize, anddiagnose cancers of the skin. Speckle-variance optical coherence tomography (svOCT) is one such technology that offers considerable promise for non-invasive, real time detection of skin cancers given its added ability to show changes in microvasculature. We present four early lesions of the face namely sebaceous hyperplasia, basal cell skin cancer, pigmented actinic keratosis, and malignant melanoma in situ that each display different important identification markers on svOCT...
2016: Dermatology Online Journal
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.]
M S Schuurman, A C de Waal, E J M Thijs, M M van Rossum, L A L M Kiemeney, K K H Aben
BACKGROUND: Melanoma patients are at increased risk of developing subsequent primary melanomas. Knowledge about risk factors for these subsequent primaries is scarce. More evidence may help clinicians in tailoring surveillance schedules by selecting patients who could benefit from intensified surveillance. OBJECTIVE: To identify risk factors for a second primary cutaneous melanoma. METHODS: Possible risk factors for a second primary melanoma were assessed in 1127 cutaneous melanoma patients, who were diagnosed between 2003 and 2011 and completed a baseline questionnaire...
September 5, 2016: British Journal of Dermatology
Rafael Parra-Medina, Samuel David Morales
Identification of melanoma in situ and its distinction from invasive melanoma is important because of its significant impact on morbidity and mortality. However, this interpretation can cause pitfalls in the diagnosis even with the use of immunohistochemistry. The aim of this study is to evaluate the diagnostic utility of epithelial makers (AE1/AE3, CK5/6, and p63) combined with melanocytic markers (HMB-45, S-100, or Melan-A) using dual-color immunohistochemical staining, performed on a single slide by sequentially applying the antibodies...
August 17, 2016: Annals of Diagnostic Pathology
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
Simone Cazzaniga, Emanuele Castelli, Anna Di Landro, Alberto Zucchi, Luigi Naldi
INTRODUCTION: Cutaneous melanoma is a significant cause of mortality, and since the skin is easily accessible for inspection, it is amenable to interventions of education and promotion of early diagnosis through the use of telemedicine systems. METHODS: Clicca il neo is a programme for the early diagnosis of skin cancer employing tools of teledermatology with a store-and-forward modality. The system uses a web form for data collection and upload of skin photographs taken by users...
August 2016: Recenti Progressi in Medicina
Paul W Harms, Thomas L Hocker, Lili Zhao, May P Chan, Aleodor A Andea, Min Wang, Kelly L Harms, Michael L Wang, Shannon Carskadon, Nallasivam Palanisamy, Douglas R Fullen
Spitzoid melanocytic lesions, including Spitz nevi (benign), spitzoid melanoma (malignant), and borderline atypical Spitz tumors (ASTs), frequently present challenges for accurate diagnosis and prognosis. Evaluation for loss of the tumor suppressor p16, encoded by CDKN2A gene on chromosome 9p21.3, has been proposed to be useful for evaluation of spitzoid melanocytic lesions. However, reports on the utility of p16 immunohistochemistry for spitzoid lesions have been conflicting, and few studies have directly compared p16 immunohistochemistry with fluorescence in situ hybridization (FISH) for CDKN2A genomic status...
August 25, 2016: Human Pathology
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