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    Intracorneal Hematoma Showing Clinical and Dermoscopic Features of Acral Lentiginous Melanoma.
    Case Rep Dermatol Med 2017 8;2017:3509146. Epub 2017 May 8.
    Department of Dermatology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Universitätsklinikum Erlangen, Erlangen, Germany.
    Intra- and subcorneal hematoma, a skin alteration seen palmar and plantar after trauma or physical exercise, can be challenging to distinguish from in situ or invasive acral lentiginous melanoma. Thus, careful examination including dermoscopic and histologic assessment may be necessary to make the correct diagnosis. We here present a case of a 67-year-old healthy female patient who presented with a pigmented plantar skin alteration. Read More

    Pigmented trichoblastoma developed in a sebaceous nevus: HRAS mutation as a common molecular driver.
    Pathol Res Pract 2017 Jul 30;213(7):860-862. Epub 2017 Mar 30.
    Research Unit Dermatopathology, Department of Dermatology, Medical University of Graz, Graz, Austria.
    A 40-year-old woman presented with a pigmented nodule on a previously existing yellowish, verrucous plaque on the scalp. The histological diagnosis was consistent with a pigmented trichoblastoma developed within a sebaceous nevus (SN). A multigene hotspot mutational profiling of the BRAF, NRAS, HRAS and KRAS genes was carried out, and a shared G13R HRAS mutation in both the trichoblastoma and the sebaceous nevus components was found. 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

    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

    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

    Dermoscopy-pathology relationship in seborrheic keratosis.
    J Dermatol 2017 May;44(5):518-524
    Department of Dermatology, Shinshu University School of Medicine, Matsumoto, Japan.
    Making a definitive diagnosis of seborrheic keratosis (SK) can be challenging for the naked eye due to its wide variation in clinical features. Fortunately, however, most cases of SK exhibit the typical dermoscopic findings of fissures and ridges, hairpin vessels with white halo, comedo-like openings, and milia-like cysts, all of which are helpful to distinguish SK from melanoma, melanocytic nevus, squamous cell carcinoma, basal cell carcinoma (BCC) and other skin tumors. Histopathologically, these dermoscopic characteristics correspond to papillomatous surface of the epidermis, enlarged capillaries of the dermal papillae, pseudohorn cysts in the epidermis opened to the surface of the lesion and intraepidermal cysts, respectively. 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

    A similar local immune and oxidative stress phenotype in vitiligo and halo nevus.
    J Dermatol Sci 2017 Jul 19;87(1):50-59. Epub 2017 Mar 19.
    Department of Dermatology, Xijing Hospital, Fourth Military Medical University, No. 127 Changlexi Road, Xi'an 710032, Shaanxi, China. Electronic address:
    Background: Vitiligo and halo nevus are two common T-cell-mediated skin disorders. Although autoimmunity has been suggested to be involved in both diseases, the relationship between vitiligo and halo nevus is not fully understood.

    Objective: The aim of the current study was to investigate whether vitiligo and halo nevus share the same immunological and oxidative stress response. Read More

    Clinicopathological and immunohistochemical analysis of oral melanocytic nevi and review of the literature.
    J Stomatol Oral Maxillofac Surg 2017 Jun 29;118(3):151-155. 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

    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

    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

    Special Considerations in Children with Vitiligo.
    Dermatol Clin 2017 Apr;35(2):229-233
    Centre de Référence des Maladies Rares de la Peau Hôpital Larrey - Service de Dermatologie 24, Chemin de Pouvourville TSA 30030, Toulouse Cedex 9 31059, France.
    Childhood vitiligo differs from adult-onset vitiligo for several features including increased incidence of the segmental variant, higher prevalence of halo nevi, and more common family history for autoimmune diseases and atopic diathesis. The major differential diagnoses are the postinflammatory hypomelanoses for nonsegmental vitiligo and nevus depigmentosus for segmental vitiligo. From a therapeutic standpoint, early awareness of the diagnosis seems to correlate with a good treatment outcome in this age group. 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

    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

    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

    Congenital melanocytic nevi in young children: Histopathologic features and clinical outcomes.
    J Am Acad Dermatol 2017 May 24;76(5):941-947. Epub 2017 Feb 24.
    Department of Pathology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts. Electronic address:
    Background: Although only large congenital melanocytic nevi (CMN) are associated with a significantly high risk for malignant transformation, CMN of all sizes are prone to changes in clinical appearance in early childhood and thus are often biopsied or excised. While CMNs typically exhibit benign behavior, atypical histopathologic findings might be common and may prompt additional unnecessary procedures.

    Objective: To assess the prevalence and associated clinical outcomes of atypical histopathologic features in CMN in children. Read More

    Atypical cellular blue nevus or malignant blue nevus?
    An Bras Dermatol 2017 Jan-Feb;92(1):110-112
    Division of Dermatology, Internal Medicine Department - Medical School of Ribeirão Preto - Universidade de São Paulo- Ribeirão Preto (SP) -Brazil.
    Blue nevus is a benign melanocytic lesion whose most frequent variants are dendritic (common) blue nevus and cellular blue nevus. Atypical cellular blue nevus presents an intermediate histopathology between the typical and a rare variant of malignant blue nevus/melanoma arising in a cellular blue nevus. An 8-year-old child presented a pigmented lesion in the buttock since birth, but with progressive growth in the last two years. Read More

    Common Skin Conditions in Children: Congenital Melanocytic Nevi and Infantile Hemangiomas.
    FP Essent 2017 Feb;453:33-37
    University of North Carolina Chapel Hill School of Medicine Dermatology Residency Program, 410 Market St. Suite 400 CB#7715, Chapel Hill, NC 27516.
    Congenital melanocytic nevi (CMN) are hamartomas present at birth that are composed of nevomelanocytes and thought to originate from faulty migration of precursor melanocytes in the neural crest. Classification is based on projected adult size of the lesion. CMN size correlates positively with risk of melanoma and neurocutaneous melanocytosis. Read More

    Basal cell carcinoma arising in a congenital melanocytic naevus in an adult.
    BMJ Case Rep 2017 Feb 13;2017. Epub 2017 Feb 13.
    Queen Victoria Hospital NHS Foundation Trust, East Grinstead, West Sussex, UK.
    Congenital melanocytic naevi (CMN) are common skin lesions. They harbour a risk of malignant transformation, and various lesions have been described as developing within them. A basal cell cancer occurring within a CMN has never previously been described. Read More

    Choroidal nevus: a review of prevalence, features, genetics, risks, and outcomes.
    Curr Opin Ophthalmol 2017 May;28(3):228-237
    Ocular Oncology Service, Wills Eye Hospital, Thomas Jefferson University, Philadelphia, Pennsylvania, USA.
    Purpose Of Review: To review the prevalence, clinical features, imaging findings, cytogenetics, and risks and outcomes of choroidal nevus.

    Recent Findings: Choroidal nevus is a benign melanocytic tumor, often discovered incidentally on ophthalmic examination. This lesion is generally well circumscribed and pigmented. Read More

    Blue Rubber Bleb Nevus Syndrome: Promising Response To Sirolimus.
    Indian Pediatr 2017 Jan;54(1):53-54
    Department of Pediatric Oncology, Hacettepe University, Cancer Institute, 06100 Ankara-Turkey. Correspondence to: Dr Burca Aydin, Department of Pediatric Oncology, Hacettepe University, Cancer Institute, 06100 Ankara-Turkey.
    Background: Blue rubber bleb nevus syndrome is a rare disease involving venous malformations.

    Case Characteristics: We present a 6-year-old female with the syndrome, and consumptive coagulopathy.

    Intervention/outcome: After management with sirolimus, symptoms resolved. Read More

    Polypoid Spitz Nevus With a Halo Reaction.
    Am J Dermatopathol 2017 Feb;39(2):130-133
    *Department of Cellular Pathology, Hospital El Bierzo, Ponferrada, Spain;†Department of Pathology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, INER/CIENI, Hospital Angeles Lomas, Centro Medico ABC, Mexico City, Mexico; and‡Department of Pathology, Hospital Universitario 12 de Octubre, Universidad Complutense, I+12, Madrid, Spain.
    Approximately, 2% of Spitz nevi are polypoid; between 3.6% and 7.4% present with a halo reaction. Read More

    Clinical profile and triggering factors for acquired, bilateral nevus of Ota-like macules.
    Cutan Ocul Toxicol 2017 Feb 15:1-4. Epub 2017 Feb 15.
    a Department of Dermatology , Affiliated Hospital of Nanjing University of Chinese Medicine , Nanjing , China and.
    Background: Acquired, bilateral nevus of Ota-like macules (ABNOM) is one of the most common dermal melanocytoses. Although there are some literatures on ABNOM, its clinical features and etiopathogenetic factors have not been fully understood.

    Objective: To determine the prevalence and characteristics of ABNOM among the Chinese patients. Read More

    Evolution of Fibroblastic Connective Tissue Nevus in an Infant.
    Am J Dermatopathol 2017 Mar;39(3):225-227
    *Department of Pathology, West Virginia University, Morgantown, WV; and Departments of †Plastic Surgery, ‡Dermatology, §Pediatrics, and ¶Pathology, The Penn State Hershey Medical Center, Hershey, PA.
    Fibroblastic connective tissue nevus (FCTN) is a rare and recently described neoplasm of fibroblastic/myofibroblastic lineage. We report a case of a 1-month-old healthy male infant who presented with a dermal plaque on the upper chest since birth. A punch biopsy demonstrated a dermal spindle-cell neoplasm with variable smooth muscle actin positivity and negative staining for CD34, consistent with myofibroma. Read More

    Case Report of a Large Pigmented Epithelioid Melanocytoma With Suspected Lymph Node Metastases.
    Eplasty 2016 16;16:e33. Epub 2016 Dec 16.
    Departments of Plastic and Reconstructive Surgery, Graduate School of Medical Sciences, Kyoto Prefectural University of Medicine, Kyoto, Japan.
    Objective: Pigmented epithelioid melanocytoma was proposed by Zembowicz et al in 2004 including lesions previously diagnosed as human animal-type melanoma and epithelioid blue nevus. Tumors are composed of epithelioid and spindled melanocytes with heavy pigmentation. Methods: We report a case of pigmented epithelioid melanocytoma in 47-year-old Asian woman. Read More

    Nevus Spilus (Speckled Lentiginous Nevus) in the Oral Cavity: Report of a Case and Review of the Literature.
    Am J Dermatopathol 2017 Jan;39(1):e8-e12
    *Department of Oral and Maxillofacial Pathology, Naval Postgraduate Dental School, Bethesda, MD; and †Department of Pathology, Walter Reed National Medical Military Center, Bethesda, MD.
    The congenital melanocytic nevus is a pigmented melanocytic lesion that presents at birth or shortly thereafter. It is commonly described on the skin, usually on the trunk and extremities. Only five intraoral cases of congenital melanocytic nevi have been described in the English literature. Read More

    Differentiated squamous intraepithelial lesion (dSIL)-like changes in the epidermis overlying anogenital melanocytic nevi: A diagnostic pitfall.
    Ann Diagn Pathol 2017 Feb 14;26:43-46. Epub 2016 Nov 14.
    Department of Pathology, Charles University, Medical Faculty and Charles University Hospital Plzen, Czech Republic.
    Background: Differentiated squamous intraepithelial lesion (dSIL) is morphologically and immunohistochemically analogous in the whole anogenital region. dSIL is a premalignant lesion frequently misinterpreted histopathologically as a benign dermatosis. The authors describe a peculiar change in the basal cell layer of the epidermis/epithelium overlying anogenital melanocytic nevi that may histopathologically imitate dSIL. Read More

    5-Hydroxymethylcytosine is a nuclear biomarker to assess biological potential in histologically ambiguous heavily pigmented melanocytic neoplasms.
    J Cutan Pathol 2017 Mar 6;44(3):249-255. Epub 2017 Feb 6.
    Program in Dermatopathology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts.
    Background: 5-Hydroxymethylcytosine (5-hmC) is an epigenetic marker detectable through immunohistochemistry (IHC) that has been shown to distinguish benign nevi from melanoma with high sensitivity and specificity. The purpose of the study was to explore its diagnostic utility in a subset of histologically challenging, heavily pigmented cutaneous melanocytic neoplasms.

    Methods: 5-hmC IHC was performed on 54 heavily pigmented melanocytic tumors. Read More

    Recurrence of moderately dysplastic nevi with positive histologic margins.
    J Am Acad Dermatol 2017 Mar 24;76(3):527-530. Epub 2016 Dec 24.
    Department of Dermatology, Baylor College of Medicine, Houston, Texas; Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas. Electronic address:
    Background: The Pigmented Lesion Subcommittee of the Melanoma Prevention Working Group recently published a consensus statement that incompletely excised moderately dysplastic nevi (MDN) without clinical residual pigmentation can be observed and not re-excised. However, data regarding recurrence of MDN with positive histologic margins are quite scant.

    Objective: We sought to extend the reported findings with a study to determine the recurrence rate of MDN with positive histologic margins. Read More

    Blue Rubber Bleb Nevus Syndrome Diagnosed Prenatally as an Epignathus.
    J Craniofac Surg 2016 Nov;27(8):e737-e738
    *I Department of Obstetrics and Gynaecology, The Centre of Postgraduate Medical Education†Center for Craniofacial Disorders, Institute of Mother and Child, Warsaw, Poland.
    The authors present a clinical report of the giant fetal tumor protruding from the oral cavity diagnosed sonographically at 32 weeks of gestation as an epignathus. After delivery, tumor proved to be a presentation of the blue rubber bleb nevus syndrome. To the best of our knowledge, the literature offers no reports on similar cases. Read More

    IL-23 Inhibits Melanoma Development by Augmenting DNA Repair and Modulating T Cell Subpopulations.
    J Immunol 2017 Jan 21;198(2):950-961. Epub 2016 Dec 21.
    Department of Dermatology, University of Alabama at Birmingham School of Medicine, Birmingham, AL 35294; and
    In animal models, IL-12 and IL-23 participate in the development of malignant neoplasms of keratinocytes. However, the role of these cytokines in pigmented lesion development and their progression to melanoma has received little attention. IL-12p35, IL-23p19, and IL-12/IL-23p40 knockout mice on a C3H/HeN background, subjected to a melanomagenesis protocol, demonstrated profound differences in susceptibility to nevus initiation, transformation, tumorigenicity, and metastatic potential. Read More

    Blue rubber bleb naevus syndrome: a rare cause of chronic occult blood loss and iron deficiency anaemia.
    BMJ Case Rep 2016 Dec 20;2016. Epub 2016 Dec 20.
    Department of Pediatrics, Aarhus Universitetshospital, Aarhus, Denmark.
    Blue rubber bleb naevus syndrome (BRBNS) is a rare vascular disorder with malformed veins, or blebs, appearing in the skin or internal organs. Gastrointestinal tract involvement is the most common feature and often subject to bleeding, potentially resulting in chronic occult blood loss and iron deficiency anaemia. We present the case of a 10-year-old boy with venous malformations on the feet and severe anaemia. Read More

    Human polyomavirus DNA detection in keratoacanthoma and Spitz naevus: no evidence for a causal role.
    J Clin Pathol 2017 May 19;70(5):451-453. Epub 2016 Dec 19.
    Department of oncology and pathology, Karolinska Institutet, Stockholm, Sweden.
    Keratoacanthomas (KA) and Spitz naevus (SN) are both lesions with unknown aetiology; therefore, the possibility of a viral involvement, more specifically the involvement of human polyomaviruses (HPyV), was investigated. In total, 22 cases of KA and 25 cases of SN were tested for the presence of HPyVs. DNA was extracted and amplified by multiplex PCR and thereafter tested with a multiplex bead-based assay for HPyVs (BKPyV, JCPyV, KIPyV, WUPyV, MCPyV, TSPyV, HPyV6, 7 and 9) and two primate viruses (SV40 and LPyV). Read More

    Non-lymphoid lesions that may mimic cutaneous hematopoietic neoplasms histologically.
    Semin Diagn Pathol 2017 Jan 29;34(1):99-107. Epub 2016 Nov 29.
    From the Section of Dermatopathology, Division of Surgical Pathology & Cytopathology, University of Virginia Health System, Charlottesville, VA, USA.
    This review considers neoplastic lesions that originate in the skin, and which have the potential to imitate hematopoietic proliferations at a histological level. They include lymphoepithelioma-like carcinoma, Merkel cell carcinoma, benign lymphadenoma, pseudolymphomatous angiosarcoma, lymphadenoid dermatofibroma, lymphomatoid atypical fibroxanthoma, histiocytoid (epithelioid) hemangioma, and inflamed melanocytic lesions. The clinical and pathological features of those tumors are considered. Read More

    Pigmentation and Pregnancy: Knowing What Is Normal.
    Obstet Gynecol 2017 Jan;129(1):168-173
    Ronald O. Perelman Department of Dermatology, New York University School of Medicine, New York, New York; the Department of Dermatology, University of Connecticut, Farmington, Connecticut; and the Department of Dermatology, University of Maryland School of Medicine, Baltimore, Maryland.
    Changes in melanocytic nevi during pregnancy are frequently attributed to the new hormonal milieu and are dismissed without concern for malignancy. Recent studies suggest that pregnancy itself does not induce significant change in nevi, and delays in the assessment of changing moles may contribute to the often more advanced nature of melanomas diagnosed during or soon after pregnancy. Nevi on the breasts and abdomen can grow as a result of skin expansion, but studies have found no significant changes in nevi located in more stable areas such as the back or lower extremities. Read More

    Combination therapy in skin of color including injectables, laser, and light devices.
    Semin Cutan Med Surg 2016 Dec;35(4):211-217
    Goldman, Butterwick, Groff, Fabi & Wu, Cosmetic Laser Dermatology, San Diego, California, USA.
    With the rapid increase in patients seeking cosmetic treatments, the variation in responses of lightly pigmented skin versus darkly pigmented skin has become increasingly apparent. Despite extensive treatment options in patients with skin of color, there is a paucity of well-designed studies performed on this patient population. The lack of research is concerning, as it is well documented that patients with darker skin types are at an increased risk of adverse events when treated with many of the available modalities used in cosmetic procedures. Read More

    Pigmented oral compound nevus of retromolar area - A rare case report.
    Singapore Dent J 2016 Dec;37:33-35
    Department of Oral Pathology, Faculty of Dentistry, Jamia Millia Islamia, New Delhi. Electronic address:
    Solitary pigmented melanocytic intraoral lesions of the oral cavity are rare. Oral nevus is a congenital or acquired benign neoplasm. Oral compound nevus constitutes 5. Read More

    A review of kinase fusions in melanocytic tumors.
    Lab Invest 2017 Feb 28;97(2):158-165. Epub 2016 Nov 28.
    Departments of Pathology and Dermatology, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
    Translocations resulting in a kinase fusion are well reported in many tumor types and indeed can be defining, particularly in the case of hematopoietic malignancies. The recent reports of multiple protein kinase fusions within melanocytic neoplasms, particularly in those with spitzoid morphology, have heralded a new era of classification of these melanocytic tumors. Seen within approximately half of all spitzoid neoplasms and present within the full spectrum of benign, atypical, and malignant lesions, kinase fusions likely represent an early oncogenic event contributing to cell proliferation and growth. Read More

    Melanocytic Nevi and the Genetic and Epigenetic Control of Oncogene-Induced Senescence.
    Dermatol Clin 2017 Jan;35(1):85-93
    Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, 108 N. Greene St., Baltimore, MD 21201, USA; Research & Development Service, VA Maryland Health Care System, Baltimore, MD, 21201, USA; Department of Dermatology, University of Maryland School of Medicine, Baltimore, MD 21201, USA. Electronic address:
    Melanocytic nevi represent benign clonal proliferations of the melanocytes in the skin that usually remain stable in size and behavior or disappear during life. Infrequently, melanocytic nevi undergo malignant transformation to melanoma. Understanding molecular and cellular mechanisms underlying oncogene-induced senescence should help identify pathways underlying melanoma development, leading to the development of new strategies for melanoma prevention and early detection. Read More

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