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    Reflectance confocal microscopy analysis of equivocal melanocytic lesions with severe regression.
    Skin Res Technol 2017 May 21. Epub 2017 May 21.
    Department of Dermatologic Clinic, San Gallicano Dermatological Institute - IRCCS, Rome, Italy.
    Background: The differential diagnosis between regressing nevi and melanoma might be challenging; regressing areas can represent a confounding factor for the diagnosis and the histology still remain mandatory to rule out melanoma. Reflectance confocal microscopy may add valuable information by revealing features suggestive of the nature of the melanocytic proliferation.

    Objective: To assess the impact of confocal microscopy in the management of regressive melanocytic lesions. Read More

    Giant congenital melanocytic nevi: 40 years of experience with the serial excision technique.
    An Bras Dermatol 2017 Mar-Apr;92(2):256-259
    School of Medicine at Universidade de São Paulo (USP) - São Paulo (SP), Brazil.
    Although giant congenital melanocytic nevus is a rare lesion, it causes significant deformity and carries a risk of malignant degeneration. Different surgical techniques for the lesion removal are described, including serial resection, resection with skin grafting, and resection and coverage with expanded skin flap (skin expanders). The aim of this study is to report the author's 40 years of experience with cases requiring at least 4 serial excisions to complete the treatment. Read More

    Proliferative nodule in melanocytic nevi mimicking deep penetrating nevus.
    An Bras Dermatol 2017 Mar-Apr;92(2):231-233
    Department of Dermatology, San Cecilio University Hospital - Granada, Spain.
    Proliferative nodules can occasionally arise on congenital and acquired melanocytic nevi. At first sight their clinical and pathologic features cause alert to both dermatologist and dermatopathologist. However, proliferative nodules are typically benign, regression is common and there is minimum risk of malignization. Read More

    A prospective study of patients with large congenital melanocytic nevi and the risk of melanoma.
    An Bras Dermatol 2017 Mar-Apr;92(2):200-205
    Dermatology Unity - Hospital das Clinicas - Universidade Federal de Minas Gerais (UFMG) - Belo Horizonte (MG), Brazil.
    Background:: Large congenital melanocytic nevus (LCMN) is considered a risk factor for melanoma, although the magnitude of this risk is controversial.

    Objective:: To evaluate the risk of melanoma development in patients with LCMN seen at a dermatology referral center in Brazil during a twelve-year period. To the best of our knowledge, there are no published similar studies on large congenital melanocytic nevus in South America. Read More

    [Analysis of prodromal phase and prodromal events in anti-N-methyl-D-aspartate receptor encephalitis].
    Zhonghua Yi Xue Za Zhi 2017 May;97(19):1469-1473
    Department of Neurology, Peking Union Medical College Hospital, Beijing 100730, China.
    Objective: To analyze prodromal phase and prodromal events of anti-N-methyl-D-aspartate receptor (NMDAR) encephalitis. Methods: Clinical data of 179 patients hospitalized and diagnosed during 2010-2016 including adults and children in Peking Union Medical College Hospital and Beijing Children's Hospital were collected.Patients with prodromal phase or prodromal events were selected. Read More

    Melanoma frequency among symmetrical Spitzoid-looking lesions: a retrospective study.
    G Ital Dermatol Venereol 2017 May 16. Epub 2017 May 16.
    Department of Dermatology, University of Naples Federico II, Naples, Italy.
    Background: Many efforts have been spent attempting to define clinical, histopathological and molecular markers for differential diagnosis of Spitz nevus and melanoma. Dermoscopy has been widely used but it may be not always sufficient.

    Methods: A retrospective study was performed evaluating Spitzoid-looking lesions showing symmetry at clinical and dermoscopic examination in patients ≥ 12 years attending our Clinic from 2004 to 2014. Read More

    Longitudinal melanonychia in childhood: a clinical and histopathological review of Korean patients.
    Eur J Dermatol 2017 May 19. Epub 2017 May 19.
    Department of Dermatology, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Korea.
    Longitudinal melanonychia is not frequently observed in children, and few studies exist on longitudinal melanonychia in paediatric patients, especially in Asian populations. We aimed to evaluate the clinical and histological findings of longitudinal melanonychia in Korean paediatric patients. A retrospective review of paediatric patients (≤18 years old) with longitudinal melanonychia who underwent nail biopsy between January 2010 and October 2015 was performed. Read More

    POSTERIOR SCLERAL MELANOCYTOSIS: A NOVEL FUNDUS FINDING MASQUERADING AS A CHOROIDAL NEVUS.
    Retin Cases Brief Rep 2017 May 16. Epub 2017 May 16.
    *Vitreous Retina Macula Consultants of New York, New York, New York; †LuEsther T. Mertz Retinal Research Center, Manhattan Eye, Ear and Throat Hospital, New York, New York; ‡Unit of Macula, Health Research Institute, University and Polytechnic Hospital La Fe, Valencia, Spain; §Department of Ophthalmology, Edward S. Harkness Eye Institute, Columbia University College of Physicians and Surgeons, New York, New York; and ¶Department of Ophthalmology, New York University School of Medicine, New York, New York.
    Purpose: To report a case of "posterior scleral melanocytosis," a pigmented lesion of the posterior sclera that clinically resembles a flat choroidal nevus.

    Methods: Case report of a patient with posterior scleral melanocytosis. Multimodal imaging, including swept source optical coherence tomography, was used to demonstrate the scleral location of the pigmented lesion and to distinguish its features from a typical choroidal nevus present in the same eye. Read More

    Long-Term Follow-Up of Polypoidal Choroidal Vasculopathy Secondary to Angioid Streaks Treated by Intravitreal Aflibercept and Ranibizumab.
    Case Rep Ophthalmol 2017 Jan-Apr;8(1):221-231. Epub 2017 Apr 10.
    Strathfield Retina Clinic, Sydney, NSW, Australia.
    Purpose: Angioid streaks (AS) are dehiscences in Bruch's membrane that may be idiopathic or associated with numerous systemic illnesses. Polypoidal choroidal vasculopathy (PCV) is an underdiagnosed exudative chorioretinopathy often characterised by serosanguineous detachments of the pigmented epithelium. The use of the anti-VEGF agents ranibizumab and aflibercept in the management of PCV secondary to AS has not been previously documented. Read More

    Giant congenital melanocytic nevi and malignant transformation: a case for early radical intervention.
    Pediatr Surg Int 2017 May 15. Epub 2017 May 15.
    Centre for Children's Burns and Trauma Research, Lady Cilento Children's Hospital, Brisbane, Australia.
    The purpose of this paper is to highlight the risk of early malignant transformation in infants with giant congenital melanocytic nevi (GN) and demonstrate the potential for earlier intervention with aggressive surgery. We describe the case of a child born with a GN who developed a metastatic melanoma early in life, despite early commencement of resection of the nevus. This is contrasted against a second case of a child in which a more radical management was conducted. Read More

    Eruptive melanocytic nevi during azathioprine therapy for antisynthetase syndrome.
    Cutis 2017 Apr;99(4):268-270
    Department of Dermatology, University of Maryland Medical Center, Baltimore, USA.
    Eruptive melanocytic nevi (EMN) are rare multiple benign melanocytic nevi that develop within a few months. The phenomenon has been associated with a variety of dermatologic and systemic conditions, including Stevens-Johnson syndrome, toxic epidermal necrolysis, epidermolysis bullosa, Addison disease, human immunodeficiency virus infection, and internal malignancy, among others. It also is commonly attributed to medications, particularly immunosuppressive and chemotherapeutic agents. Read More

    Spitz Tumors of the Skin.
    Surg Pathol Clin 2017 Jun 31;10(2):281-298. Epub 2017 Mar 31.
    Department of Pathology, VU University Medical Center, PO Box 7057, Amsterdam 1007 MB, The Netherlands. Electronic address:
    Spitz tumors are melanocytic neoplasms hallmarked by large cell size, lack of high-grade atypia, and a regular architecture. Most are nonpigmented or poorly pigmented. Malignant potential ranges from absent (Spitz nevus), to fully present (spitzoid melanoma), with a further, ill-defined group of Spitz tumors with limited metastatic potential. Read More

    Genomic Assessment of Blitz Nevi Suggests Classification as a Subset of Blue Nevus Rather Than Spitz Nevus: Clinical, Histopathologic, and Molecular Analysis of 18 Cases.
    Am J Dermatopathol 2017 Apr 27. Epub 2017 Apr 27.
    Departments of *Pathology, and†Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, IL; and‡Robert H. Lurie Cancer Center, Feinberg School of Medicine, Northwestern University, Chicago, IL.
    Blitz nevi/tumors are a distinct subset of melanocytic neoplasia which show mixed morphologic features of Spitz and blue nevus. Genomically, most blue nevi have GNAQ or GNA11 mutations while most Spitzoid neoplasms have either an HRAS mutation or translocations involving MET, ROS, BRAF, ALK1, NTRK1, and RET. The criteria used for the assessment of malignancy in blue and Spitzoid lesions are different, and these lesions have different prognostic markers. Read More

    Clinicopathological features and prognosis of patients with de novo versus nevus-associated melanoma in Taiwan.
    PLoS One 2017 4;12(5):e0177126. Epub 2017 May 4.
    Department of Dermatology, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan.
    Studies surveying melanomas associated with melanocytic nevi in Asia are rare. In this study, we examined whether nevus-associated melanomas differ from de novo melanomas in terms of their associations with clinical factors, histologic characteristics, and patient survival in Taiwan. Using data on cancer cases obtained from the Department of Pathology archives and the Cancer Registry of National Taiwan University Hospital, we conducted a retrospective analysis of 103 consecutive melanoma patients who were diagnosed between 2010 and 2015 and received follow-up through November 2016. Read More

    Paediatric melanoma.
    J Eur Acad Dermatol Venereol 2017 Apr 27. Epub 2017 Apr 27.
    University Department of Dermatology - Venereology, "Andreas Sygros" Hospital, Athens, Greece.
    Paediatric melanoma, although rare, is the most common skin cancer in children. Our current knowledge on paediatric melanoma incidence trends is expanding, as several studies have addressed this issue with conflicting results. Known risk factors for paediatric melanoma include family history of melanoma, a previous history of malignancy, large congenital nevi, numerous melanocytic nevi, sunburns, increased UV exposure and a sun-sensitive phenotype. Read More

    Estimating melanin location in the pigmented skin lesions by hue-saturation-lightness color space values of dermoscopic images.
    J Dermatol 2017 May;44(5):490-498
    Department of Dermatology, Tokyo Women's Medical University Medical Center East, Tokyo, Japan.
    The depth of melanin in the skin can be estimated roughly by observation of the color exhibited on dermoscopy. Currently, there are no objective methods to estimate it. The aim of the present study was to clarify the relationship between the depth of melanin in the skin and the color variation exhibited, and to objectively estimate the 3-D location of melanin in the pigmented skin lesions from dermoscopic images. Read More

    Abundance of the benign melanocytic universe: Dermoscopic-histopathological correlation in nevi.
    J Dermatol 2017 May;44(5):499-506
    Department of Dermatology and Venereology, Medical University of Graz, Graz, Austria.
    The broad universe of "melanocytic nevi" includes a variety of different subtypes, which can be classified either due to their morphology, epidemiology, genetic alterations or risk for developing melanoma. Regarding morphology, on the one hand macroscopic/clinical and on the other hand histopathological appearance were used to subdivide in the past, often resulting in confusion and poor interobserver agreement, while nowadays dermoscopy presents the clinician's precious bridge between naked-eye examination and histopathological diagnostics, allowing prediction of the lesions' histopathology, follow up and monitoring over time without need of excision. The non-invasive dermoscopic examination relies on the assessment of colors, patterns and the distribution of both within a cutaneous lesion. Read More

    Topography of Protein Kinase C βII in Benign and Malignant Melanocytic Lesions.
    Int J Surg Pathol 2017 Apr 1:1066896917706026. Epub 2017 Apr 1.
    2 Laboratory of Pathology, Division of Morphology, University of Crete, Heraklion, Greece.
    Background: Protein kinase C βII promotes melanogenesis and affects proliferation of melanocytic cells but is frequently absent or decreased in melanoma cells in vitro.

    Objective: To investigate PKC-βII expression and spatial distribution within a lesion in various benign and malignant melanocytic proliferations.

    Methods: Expression of PKC-βII was semiquantitatively assessed in the various existing compartments (intraepidermal [not nested], junctional [nested], and dermal) of benign (n = 43) and malignant (n = 28) melanocytic lesions by immunohistochemistry. Read More

    Noninvasive RCM for Differentiation of Melanotic Macules From Melanocytic Lesions-Blinded Evaluation of a Series of 42 Pigmented Macules.
    Dermatol Surg 2017 Apr 19. Epub 2017 Apr 19.
    *Department of Dermatology, Paracelsus Medical University of Salzburg, Salzburg, Austria; †Department of Dermatology, Medical University of Graz, Graz, Austria, Europe.
    Background: Differentiation of melanotic macules from melanocytic lesions, most importantly of melanoma, is a common problem on clinical-dermoscopic examination.

    Objective: To assess the value of noninvasive reflectance confocal microscopy (RCM) in the differential diagnosis of melanotic macules and melanocytic lesions.

    Patients And Methods: Reflectance confocal microscopy images of 42 pigmented macules on mucocutaneous junctions of genitalia and lips, including 31 melanotic macules, 6 nevi, and 5 melanomas, were retrospectively and independently assessed in a blinded manner by one expert observer and 2 less experienced observers together. Read More

    Melanocytes Containing Large Nuclei and Abundant Pale Cytoplasm in Melanocytic Nevi.
    Am J Dermatopathol 2017 May;39(5):414-416
    *Pathology Unit, Medical and Surgical Sciences Department, University of Cantabria and IDIVAL, Santander, Spain †Anatomical Pathology Service, Marqués de Valdecilla University Hospital, Medical Faculty, University of Cantabria and IDIVAL, Santander, Spain ‡Dermatology Service, Marqués de Valdecilla University Hospital, Medical Faculty, University of Cantabria and IDIVAL, Santander, Spain.

    Oral pigmentations in physiologic conditions, post inflammatory affections and systemic diseases.
    G Ital Dermatol Venereol 2017 Apr 19. Epub 2017 Apr 19.
    Dermatology, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy -
    Melanocytes are found throughout the oral mucosa but usually go unnoticed because of their relatively low level of pigment production. When focally or generally active in pigment production or proliferation they may be responsible for several affections in the oral mucosae ranging from physiologic pigmentation, systemic diseases to malignant neoplasms. The diagnosis of oral pigmentations (OP) is usually challenging for the physician, but a careful examination of the oral cavity may reveal the first manifestation of underlying systemic diseases. Read More

    Optical Coherence Tomography Angiography Features in Melanocytoma of the Optic Nerve.
    Ophthalmic Surg Lasers Imaging Retina 2017 Apr;48(4):364-366
    Optic disc melanocytoma (ODM) is a pigmented tumor with malignant potential characterized clinically as a dark brown to black lesion with feathery margins. The authors report a case of ODM and describe the utility of optical coherence tomography angiography (OCTA) in detecting superficial tumor vascularization. This case report demonstrated the ability of OCTA to reveal the fine abnormal retinal vasculature on the surface of the lesion, a characteristic of ODM, which has been previously correlated with tumor growth. Read More

    Pigmented epithelioid melanocytoma (animal type melanoma): An institutional experience.
    J Am Acad Dermatol 2017 Apr 14. Epub 2017 Apr 14.
    Department of Dermatology, University of Rochester School of Medicine, Rochester, New York; Department of Pathology, University of Rochester School of Medicine, Rochester, New York.
    Background: Pigmented epithelioid melanocytoma (PEM) is an uncommon, recently described entity with unknown biologic behavior. There is a high rate of regional metastases, but limited evidence of distant metastases or disease-related death.

    Objective: We sought to report our series of patients given a diagnosis of PEM at our institution and provide mutational analysis of genes commonly implicated in melanoma in 2 cases. Read More

    SF3B1 and BAP1 mutations in blue nevus-like melanoma.
    Mod Pathol 2017 Apr 14. Epub 2017 Apr 14.
    Department of Dermatology, University Hospital Essen, West German Cancer Center, University Duisburg-Essen and the German Cancer Consortium (DKTK), Essen, Germany.
    Blue nevi are melanocytic tumors originating in the cutaneous dermis. Malignant tumors may arise in association with or resembling blue nevi, so called 'blue nevus-like melanoma', which can metastasize and result in patient death. Identifying which tumors will behave in a clinically aggressive manner can be challenging. Read More

    A retrospective epidemiological study of skin diseases among pediatric population attending a tertiary dermatology referral center in Northern Greece.
    Clin Cosmet Investig Dermatol 2017 3;10:99-104. Epub 2017 Apr 3.
    First Department of Dermatology, Aristotle University Medical School, Thessaloniki, Greece.
    Background: The incidence of skin diseases in children is influenced by hereditary, social, and environmental factors. The objective of this study was to determine the incidence of pediatric dermatoses at a University Hospital in Northern Greece.

    Patients And Methods: We reviewed epidemiologic data of 940 patients, aged 0-18 years, who were referred to the outpatient clinic of a University Hospital between January 2013 and December 2015. Read More

    The diagnosis and management of the Spitz nevus in the pediatric population: a systematic review and meta-analysis protocol.
    Syst Rev 2017 Apr 13;6(1):81. Epub 2017 Apr 13.
    Division of Plastic Surgery, University of Ottawa, 501 Smyth Road, Ottawa, ON, K1H 8L6, Canada.
    Background: Spitz nevi are uncommon melanocytic neoplasms found in children. Historically, the diagnosis and management of these tumors has lacked consensus among oncologists, pathologists, plastic surgeons, and dermatologists. Once interpreted and treated as a "juvenile melanoma", many have argued for the benignancy of such tumors in certain patient age groups, encouraging a conservative approach. Read More

    Surgical suturing-induced melanocytic nevi. A new type of eruptive melanocytic nevi?
    J Dermatol Case Rep 2016 Nov 30;10(3):49-52. Epub 2016 Nov 30.
    2nd Department of Dermatology and Venereology, National and Kapodistrian University of Athens, Medical School, "Attikon" University General Hospital, 1 Rimini str, 12462, Chaidari, Athens, Greece.
    Background: Nevogenesis is a complex process involving several pathogenetic mechanisms, including genetic factors, hormonal influences and UV-radiation. Trauma has been described as a triggering factor for an alternative pathway of nevogenesis. Eruptive melanocytic nevi (EMN), related either to immunosuppression or to blistering disorders, represent a special type of nevi probably induced by the disruption of the dermo-epidermal junction and consequent proliferation of quiescent pigment cells during re-epithelization. Read More

    Myxoid Spitz Nevi: Report of 6 Cases.
    Am J Dermatopathol 2017 Mar 27. Epub 2017 Mar 27.
    *Department of Cellular Pathology, Cellular Pathology, Hospital El Bierzo, Ponferrada, Spain; †Biomedical Investigation Institute of A Coruña, CellCOM-SB Group, A Coruña, Spain; ‡Department of Cellular Pathology, Hospital de la Reina, Cellular Pathology, Ponferrada, Spain; §Department of Pathology, Hospital Universitario 12 de Octubre, Madrid, Spain; ¶Universidad Complutense, Medical School, Instituto i+12, Madrid, Spain; and ‖Department of Dermatology, Los Angeles Medical Center (LAMC), Southern California Kaiser Permanente, Los Angeles, CA.
    Mucin deposition in Spitz nevus seems to be a very rare phenomenon, as there have only been 3 cases previously published. We report 6 additional cases, half of them in women, and half in men. The ages of the patients varied from 5 to 47 years (mean = 30. Read More

    Diagnostic Distinction of Malignant Melanoma and Benign Nevi by a Gene Expression Signature and Correlation to Clinical Outcomes.
    Cancer Epidemiol Biomarkers Prev 2017 Apr 4. Epub 2017 Apr 4.
    Myriad Genetic Laboratories, Inc.
    Background: Histopathologic examination alone can be inadequate for diagnosis of certain melanocytic neoplasms. Recently, a 23-gene expression signature was clinically validated as an ancillary diagnostic test to differentiate benign nevi from melanoma. The current study assessed the performance of this test in an independent cohort of melanocytic lesions against clinically proven outcomes. Read More

    Risk of melanocytic nevi and nonmelanoma skin cancer in children after allogeneic hematopoietic stem cell transplantation.
    Bone Marrow Transplant 2017 Apr 3. Epub 2017 Apr 3.
    Department of Medicine, Dermatology Program, Boston Children's Hospital, Boston, MA, USA.
    There is a known increased risk of skin cancer in the adult population after hematopoietic stem cell transplantation (HSCT). However, late dermatologic effects that children may experience after HSCT have not been well described. The primary objective of this study was to characterize nevi and skin cancers affecting children after allogeneic HSCT. Read More

    Clinicopathological and immunohistochemical analysis of oral melanocytic nevi and review of the literature.
    J Stomatol Oral Maxillofac Surg 2017 Mar 29. Epub 2017 Mar 29.
    Dental School of University of Seville, Spain.
    Introduction: Oral melanocytic nevi (OMNs) are uncommon benign melanocytic tumors, histologically similar to their cutaneous counterparts. The aim of this study was twofold: to contribute to the epidemiology with a literature review with the first Spanish series of OMNs, and to report on clinicopathological, immunohistochemical and demographic findings.

    Materials And Methods: A retrospective analysis of cases attended over the period 1999-2010 was carried out using data drawn from the pathology unit files at two public hospitals in the Spanish region of Andalusia, serving between them a population of 823. Read More

    A Diagnostic Algorithm Combining Immunohistochemistry and Molecular Cytogenetics to Diagnose Challenging Melanocytic Tumors.
    Appl Immunohistochem Mol Morphol 2017 Mar 30. Epub 2017 Mar 30.
    *Inserm U1078 Departments of †Molecular Genetics and Histocompatibility ‡Pathology, CHRU Brest §European University of Brittany, Brest, France.
    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). Read More

    Tissue expansion in the treatment of giant congenital melanocytic nevi of the upper extremity.
    Medicine (Baltimore) 2017 Mar;96(13):e6358
    aDepartment of Plastic Surgery bDepartment of Operating Theater, Henan Provincial People's Hospital, Zhengzhou City, Henan Province, China.
    The aim of our study was to use tissue expansion for the treatment of giant congenital melanocytic nevi of the upper extremity and examine potential advantages over traditional techniques.There were 3 stages in the treatment of giant congenital melanocytic nevi of the upper extremities using tissue expansion: first, the expander was inserted into the subcutaneous pocket; second, the expander was removed, lesions were excised, and the wound of the upper extremity was placed into the pocket to delay healing; third, the residual lesion was excised and the pedicle was removed. The pedicle flap was then unfolded to resurface the wound. Read More

    Diagnostic performance of the MelaFind device in a real-life clinical setting.
    J Dtsch Dermatol Ges 2017 Apr 23;15(4):414-419. Epub 2017 Mar 23.
    Department of Dermatology, Venereology, and Allergology, University Medical Center, Ruprecht-Karl University, Heidelberg, Germany.
    Background: MelaFind is a multispectral computer vision system intended to -provide additional information on melanocytic lesions suspected of being melanoma by -objectively assessing their three-dimensional morphology.

    Objectives: Analysis of the diagnostic performance of MelaFind in a real-life clinical setting.

    Patients And Methods: In this observational study, 360 pigmented skin lesions (PSL) in 111 patients were assessed by office-based dermatologists using MelaFind. Read More

    Melanomas and Dysplastic Nevi Differ in Epidermal CD1c+ Dendritic Cell Count.
    Biomed Res Int 2017 26;2017:6803756. Epub 2017 Feb 26.
    Chair of Pathomorphology, Faculty of Medicine, Jagiellonian University Medical College, Grzegórzecka 16, 31-351 Kraków, Poland.
    Background. Dendritic cells could be involved in immune surveillance of highly immunogenic tumors such as melanoma. Their role in the progression melanocytic nevi to melanoma is however a matter of controversy. Read More

    Giant benign intradermal melanocytic nevus of rapid onset.
    Dermatol Online J 2017 Feb 15;23(2). Epub 2017 Feb 15.
    Weill Cornell Medical College, New York, New York.
    Benign melanocytic nevi are slowly growing acquiredor congenital tumors with varied morphology,commonly encountered in dermatology clinics. Anytumor with rapid clinical growth must be assessedcarefully in order to exclude malignancy. We report awoman with a histopathologically benign intradermalnevus that presented as a rapidly evolving largecutaneous mass on the ear. Read More

    Patterns of distribution of giant congenital melanocytic nevi (GCMN): The 6B rule.
    J Am Acad Dermatol 2017 Apr;76(4):689-694
    Melanoma Unit, Department of Dermatology, Hospital Clinic of Barcelona, University of Barcelona, Barcelona, Spain; "Centro de Investigación Biomédica en Red en Enfermedades Raras, Instituto de Salud Carlos III", Barcelona, Spain. Electronic address:
    Background: Garment-related terms have been used to describe the pattern of distribution of giant congenital melanocytic nevi (GCMN).

    Objective: We sought to describe patterns of distribution of GCMN and propose a classification scheme.

    Methods: Photographic records of patients with GCMN from the Hospital Clinic of Barcelona were analyzed and a classification based on observed GCMN distribution patterns was created. Read More

    Dermoscopic Findings of an Unusual Acral Nevus on the Hand of a Child.
    Pediatr Dermatol 2017 May 20;34(3):e137-e139. Epub 2017 Mar 20.
    Department of Dermatology, Downstate Medical Center, State University of New York, Brooklyn, New York.
    Distinguishing benign acral nevi from small early acral melanomas may be challenging in certain cases. Dermoscopy is a noninvasive imaging technique that can help clinicians better visualize deeper lesion structures and thus more easily differentiate benign nevi from melanoma. We report the case of a 13-year-old girl with a changing dark brown to black macule with a central papular component on the volar surface of the right third finger. Read More

    Immunohistochemical Study of Vasculogenic Mimicry and Angiogenesis in Melanocytic Tumors of the Eye and the Periocular Area.
    Anticancer Res 2017 03;37(3):1113-1120
    Department of Ophthalmology, University Hospital of Ioannina, Ioannina, Greece.
    Background/aim: The ability of a tumor to grow requires a sufficient blood supply. Microvascular density is considered the standard for assessing the neovasculature. Tumor cell vasculogenic mimicry refers to the formation of tumor cell-lined vessels that contribute to tumor neovascularization. Read More

    Impression Cytology in a Series of Clinically Diagnosed Ocular Surface Melanocytic Lesions.
    J Ophthalmic Vis Res 2017 Jan-Mar;12(1):17-22
    Rassoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran.
    Purpose: To report impression cytology (IC) results of clinically diagnosed ocular surface melanocytic lesions.

    Methods: Ten patients with a clinical diagnosis of an ocular surface melanocytic lesion underwent IC using cellulose acetate strips and Periodic acid Schiff-Papanicolaou staining. Excisional biopsy of lesions was performed in case of observing atypical cells on IC or at the patient's request, and excised specimens were subjected to histopathological analysis. Read More

    Congenital melanocytic nevus on the lower eyelid treated with continuous wave and superpulsed CO2 laser followed by erbium laser.
    J Cosmet Laser Ther 2017 Feb 17:1-3. Epub 2017 Feb 17.
    a Private Practice , Abrusci Studio , Milan , Italy.
    There are several therapeutic options to treat congenital melanocytic nevi. The motivations for the treatment of small- to medium-sized congenital nevi located on the face or other sensitive areas are frequently cosmetic. The choice of therapy depends on the operator's expertise and on the likelihood of improved cosmesis. Read More

    Melanoma and melanocytic nevi in paediatric patients: a single institution experience.
    G Ital Dermatol Venereol 2017 Mar 14. Epub 2017 Mar 14.
    Unità Operativa di Dermatologia, Dipartimento di Medicina Specialistica, Diagnostica e Sperimentale, Policlinico Sant'Orsola-Malpighi, Università di Bologna, Bologna, Italy.
    Background: Melanoma is an infrequent neoplasm in children and adolescents. The number of consultancies for melanocytic nevi control in the paediatric population is increased by the major anxiety of parents and paediatricians.

    Methods: A retrospective chart review was performed in order to evaluate the incidence rate of melanoma, Spitz nevi, congenital and acquired melanocytic nevi in patients aged 14 years or less and referred to our institution from April 2010 to September 2015. Read More

    Risks of unregulated use of alpha-melanocyte-stimulating hormone analogues: a review.
    Int J Dermatol 2017 Mar 7. Epub 2017 Mar 7.
    University of Leiden, Department of Dermatology, Leiden, the Netherlands.
    Recently, the unregulated use of untested synthetic alpha-melanocyte-stimulating hormone (α-MSH) analogues, commonly known as melanotan I and II, appears to have increased. These analogues are primarily used for their tan-stimulating effects. Dermatologists see many patients in their clinic who tan. Read More

    Long Noncoding RNA PVT1 as a Novel Diagnostic Biomarker and Therapeutic Target for Melanoma.
    Biomed Res Int 2017 7;2017:7038579. Epub 2017 Feb 7.
    Department of General Surgery, The 253rd Hospital of PLA, Hohhot, Inner Mongolia 010051, China.
    Accumulating evidences indicated that plasmacytoma variant translocation 1 (PVT1) plays vital roles in several cancers. However, the expression, functions, and clinical values of PVT1 in melanoma are still unknown. In this study we measured the expression of PVT1 in clinical tissues and serum samples and explored the diagnostic value of PVT1 for melanoma and the effects of PVT1 on melanoma cell proliferation, cell cycle, and migration. Read More

    Reelin and its receptors, VLDLR and ApoER2, in melanocytic nevi.
    J Med Life 2017 Jan-Mar;10(1):85-89
    Department of Dermatology, "Dr. Victor Babeş" Clinical Hospital of Infectious and Tropical Diseases, Bucharest, Romania ; Department of Pharmacology, Faculty of Medicine, "Carol Davila" University of Medicine and Pharmacy, Bucharest, Romania.
    Reelin is an extracellular signaling protein synthesized by Cajal-Retius cells in utero and early after birth, its presence being signaled in adult life too. Reelin acts on its receptors, VLDLR and ApoER2, acting on cytoskeleton, controlling migration and subsequently positioning and stabilizing the cortical neurons. We investigated the reelin presence and its receptors, VLDLR and ApoER2, in melanocytic nevi considering the neural crest origin of the nevus cells and their migration into skin during embrionary period. Read More

    Mass Spectrometry Imaging Can Distinguish on a Proteomic Level Between Proliferative Nodules Within a Benign Congenital Nevus and Malignant Melanoma.
    Am J Dermatopathol 2017 Feb 20. Epub 2017 Feb 20.
    *Department of Dermatology, Yale University School of Medicine, New Haven, CT; †Smilow Cancer Center, New Haven, CT; ‡Department of Plastic Surgery, Plastic Surgery Hospital, Peking Union Medical College and the Chinese Academy of Medical Science, Beijing, China; §Department of Dermatology, School of Medicine, University of Balamand, Beirut, Lebanon; ¶Department of Genetics, Yale School of Medicine, New Haven, CT; ‖Protea Biosciences, Inc, Morgantown, WV; and **Mass Spectrometry Research Center, Vanderbilt University, Nashville, TN.
    Histopathological interpretation of proliferative nodules occurring in association with congenital melanocytic nevi can be very challenging due to their similarities with congenital malignant melanoma and malignant melanoma arising in association with congenital nevi. We hereby report a diagnostically challenging case of congenital melanocytic nevus with proliferative nodules and ulcerations, which was originally misdiagnosed as congenital malignant melanoma. Subsequent histopathological examination in consultation by one of the authors (R. Read More

    Dermoscopic and confocal features of an axillary "special site" nevus.
    Dermatol Pract Concept 2017 Jan 31;7(1):55-58. Epub 2017 Jan 31.
    Department of Dermatology, Sheba Medical Center and Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
    "Nevi of special sites" is a term that denotes melanocytic nevi presenting in specific anatomic locations including the scalp, genital area, flexural sites, and acral sites [1]. Nevi from these anatomic sites display at times histopathologic features that may lead the reading pathologist to recommend re-excision of these benign nevi. Reflectance confocal microscopy (RCM) is a noninvasive imaging tool that allows for visualization of epidermal, dermal-epidermal junctional (DEJ), and superficial dermal tissue structures at cellular level resolution. Read More

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