Search our Database of Scientific Publications and Authors

I’m looking for a

    8428 results match your criteria Ephelides Freckles

    1 OF 169

    [Vitiligo occurring on dermal melanocytosis (nevus of Ota) in a dark-skinned patient].
    Ann Dermatol Venereol 2017 Jul 17. Epub 2017 Jul 17.
    Service de dermatologie, CHU, Treichville, Côte d'Ivoire.
    Background: Nevus of Ota is a rare disease most frequently found in Asians. It presents clinically as a bluish gray hyperpigmentation of one side of the face. Transformation into melanoma and glaucoma are the main risks. Read More

    Late Solitary Extraocular Recurrence from Previously Resected Iris Melanoma.
    Am J Ophthalmol 2017 Jun 30. Epub 2017 Jun 30.
    Ocular Oncology Service, Moorfields Eye Hospital, London, UK; UCL Institute of Ophthalmology, London.
    Purpose: To report on cases of late extraocular relapse of previously resected iris melanoma, without concurrent intraocular recurrence.

    Design: Retrospective case series.

    Methods: A retrospective chart review of 4 patients diagnosed with late subconjunctival relapse of previously resected iris melanoma. Read More

    Cancer risk in patients with Peutz-Jeghers syndrome: A retrospective cohort study of 336 cases.
    Tumour Biol 2017 Jun;39(6):1010428317705131
    1 Department of Gastroenterology, Clinical College of Air Force General Hospital, Anhui Medical University, Beijing, China.
    Peutz-Jeghers syndrome is a rare autosomal dominant inherited disorder characterized by mucocutaneous pigmentation and hamartomatous gastrointestinal polyposis. A growing body of evidence has shown that Peutz-Jeghers syndrome could cause an increased risk of various cancers, yet the range of cancer risk estimates was wide among different studies. In this retrospective cohort study, 336 patients with Peutz-Jeghers syndrome in China were enrolled. Read More

    Efficacy of surgical laser therapy in the management of oral pigmented lesions: A systematic review.
    J Photochem Photobiol B 2017 Jun 15;173:353-359. Epub 2017 Jun 15.
    Division of General Dentistry, Eastman Institute for Oral Health, University of Rochester, Rochester, NY, United States.
    Background: Oral pigmentation, especially in the gingiva poses esthetic problems. Laser therapy has been widely used for cosmetic therapy in dentistry. The aim of the present study was to systematically review the efficacy of surgical laser therapy (SLT) in the management of oral pigmented lesions (OPL). Read More

    Ophthalmic Manifestations of Xeroderma Pigmentosum: A Perspective from the United Kingdom.
    Ophthalmology 2017 May 26. Epub 2017 May 26.
    Nationally Commissioned Xeroderma Pigmentosum Service, Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom; Department of Ophthalmology, Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom.
    Purpose: To document the ocular manifestations of xeroderma pigmentosum (XP), presenting via the United Kingdom (UK) XP service, and to analyze the correlations between XP genotype and ophthalmic phenotype.

    Design: Prospective observational case series.

    Subjects: Eighty-nine patients seen by the UK Nationally Commissioned XP Service, from April 2010 to December 2014, with a genetically confirmed diagnosis of XP. Read More

    Epidemiology and Predisposing Factors for Erythema Toxicum Neonatorum and Transient Neonatal Pustular: A Multicenter Study.
    Pediatr Dermatol 2017 Jul 25;34(4):422-426. Epub 2017 May 25.
    Department of Dermatology, Hospital de Clínicas de Porto Alegre, Porto Alegre, RS, Brazil.
    Background/objectives: Erythema toxicum neonatorum (ETN) and transient neonatal pustular melanosis (TNPM) are benign pustular skin conditions that are relatively common in newborns, but the predisposing factors for these conditions are unknown. Our goal was to verify the prevalence of ETN and TNPM and their predisposing factors in a large sample of neonates.

    Methods: In this prospective 1-year multicenter study, 2,831 neonates (age ≤72 hours) born in southern Brazil were randomized to undergo skin examination by a dermatologist. Read More

    Eosinophilic annular erythema is clinically characterized by central pigmentation reflecting basal melanosis: a clinicopathological study of 10 cases.
    J Eur Acad Dermatol Venereol 2017 May 22. Epub 2017 May 22.
    Department of Dermatology, Hokkaido University Graduate School of Medicine, Sapporo, Japan.
    Background: Eosinophilic annular erythema (EAE) has been proposed as a clinical entity to describe annular skin lesions associated with tissue eosinophilia. However, systematic investigations on the histopathology of EAE have not been performed, and useful histopathological findings for diagnosis of EAE remain unknown.

    Objective: The aim of this study was to investigate the clinicopathological features of EAE. Read More

    Successful Treatment of Becker's Nevus With Long-Pulsed 1064nm Nd:YAG and 755nm Alexandrite Laser and Review of the Literature.
    J Cosmet Laser Ther 2017 May 12. Epub 2017 May 12.
    b Gateway Aesthetic Institute & Laser Center , Salt Lake City , UT.
    Background: Becker's Nevus is an aesthetically troublesome condition secondary to hyperpigmentation and hypertrichosis. Although several lasers have been employed with varying degrees of success, the exact devices and treatment parameters have yet to be elucidated.

    Objective: To assess the combination Nd:Yag and alexandrite laser as a safe and efficacious treatment for Becker's Nevus. Read More

    Efficacy of functional microarray of microneedles combined with topical tranexamic acid for melasma: A randomized, self-controlled, split-face study.
    Medicine (Baltimore) 2017 May;96(19):e6897
    aDepartment of Dermatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing bSuzhou NanoMED skincare Inc, Suzhou, China.
    To evaluate the efficacy of a functional microarray of microneedles (MNs) plus topical tranexamic acid (TA) for melasma in middle-aged women in China.Thirty female subjects with melasma were enrolled in this study. The left or right side of the face was chosen randomly to be pretreated with a functional microarray of MNs, followed by topical 0. Read More

    Cochlear implantation and clinical features in patients with Noonan syndrome and Noonan syndrome with multiple lentigines caused by a mutation in PTPN11.
    Int J Pediatr Otorhinolaryngol 2017 Jun 17;97:228-234. Epub 2017 Apr 17.
    Department of Otorhinolaryngology, Head and Neck Surgery, Radboud University Medical Center, P.O. Box 9101, 6500 HB Nijmegen, The Netherlands; Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, The Netherlands.
    Existing literature only reports a few patients with Noonan syndrome (NS) and Noonan syndrome with multiple lentigines (NSML) who underwent cochlear implantation (CI). The present study describes four NS patients and one NSML patient with a PTPN11 mutation. They all had severe to profound hearing loss, and they received a CI. Read More

    Peutz-Jeghers syndrome with intermittent upper intestinal obstruction: A case report and review of the literature.
    Medicine (Baltimore) 2017 Apr;96(17):e6538
    aDepartment of Pediatric Surgery, The Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China bDepartment of Radiology, The First Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China.
    Rationale: Peutz-Jeghers syndrome (PJS) is an autosomal dominant genetic syndrome characterized by a unique type of gastrointestinal hamartomatous polyp associated with oral and anal mucocutaneous pigmentations. Peutz-Jeghers polyps occur most numerously in the small intestine but frequently in the colon and stomach, only a few cases have been reported in the duodenum.

    Patient Concern: A further family history survey discovered 10 out of 14 members of the family (in 4 generations) had mucocutaneous pigmentations, but many of them were living in rural areas where they had no access to specialized medical services, so none were checked with endoscopy for polyps of hamartoma. Read More

    Noninvasive RCM for Differentiation of Melanotic Macules From Melanocytic Lesions-Blinded Evaluation of a Series of 42 Pigmented Macules.
    Dermatol Surg 2017 Jul;43(7):911-919
    *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

    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

    Effect of catechin and its derivatives on inhibition of polyphenoloxidase and melanosis of Pacific white shrimp.
    J Food Sci Technol 2017 Apr 24;54(5):1098-1107. Epub 2017 Feb 24.
    Department of Food Science and Agricultural Chemistry, McGill University (Macdonald Campus), 21,111 Lakeshore Road, Sainte-Anne-de-Bellevue, QC H9X 3V9 Canada.
    This study aimed to investigate the effect of tea catechin (C) and 4 of its derivatives on the Pacific white shrimp PPO inhibition and melanosis during refrigerated storage. Epigallocatechin gallate (EGCG) exhibited the highest inhibition towards PPO, followed by C. Inhibitory activity of all compounds tested was in a dose dependent manner (0. Read More

    Supratentorial intermediate grade meningeal melanocytoma with intratumoral bleed in the background of neurocutaneous melanosis: Report of an unusual case and review of literature.
    Asian J Neurosurg 2017 Jan-Mar;12(1):98-102
    Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India.
    Primary melanocytic tumours of the central nervous system (CNS) are rare. According to the WHO classification (2007), these tumours include diffuse leptomeningeal melanosis, melanomatosis, melanocytoma, and primary CNS melanoma. Meningeal melanocytoma, most commonly seen in the infratentorial compartment and cervical spinal cord, is a benign primary melanocytic neoplasm. Read More

    T-Cell Lymphoma in a Patient with Neurofibromatosis Type 1 and AIDS.
    Case Rep Oncol 2017 Jan-Apr;10(1):161-168. Epub 2017 Feb 15.
    Universidade Federal do Estado do Rio de Janeiro (UNIRIO), Rio de Janeiro, Brazil.
    Neurofibromatosis type 1 (NF1) and AIDS are risk factors for the development of malignant neoplasms, including hematological malignancies, such as non-Hodgkin lymphoma. NF1 is an autosomal dominant disease that primarily manifests as café-au-lait spots, dermal neurofibromas, axillary and/or inguinal ephelides or freckles, plexiform neurofibromas, Lisch nodules, and bone deformities. In this report, we present a 38-year-old female patient with NF1 from childhood and AIDS who developed peripheral T-cell lymphoma with good response to chemotherapeutic treatment. Read More

    Microneedling in All Skin Types: A Review.
    J Drugs Dermatol 2017 Apr;16(4):308-313

    INTRODUCTION: Microneedling procedures are growing in popularity for a wide variety of skin conditions. This paper comprehensively reviews the medical literature regarding skin needling efficacy and safety in all skin types and in multiple dermatologic conditions.

    METHODS: A PubMed literature search was conducted in all languages without restriction and bibliographies of relevant articles reviewed. Read More


    Diffuse melanosis cutis related to dermal micrometastases as the first clinical symptom of distant metastatic malignant melanoma: Case report.
    Medicine (Baltimore) 2017 Apr;96(15):e6470
    aDepartment of Dermatology, Venereology and Allergology, Wroclaw Medical University bDepartment of Pathomorphology, Wroclaw Medical University, Wroclaw, Poland.
    Rationale: Diffuse melanosis cutis (DMC) is a very rare sign of malignant melanoma progression. The condition usually develops after approximately one year from melanoma diagnosis in a patient with metastatic tumors and after anticancer treatment with cytostatic medications.

    Patient Concerns: A 72-year old Caucasian man was admitted to the Department of Dermatology with DMC for 4 months and the history of two melanomas treated surgically 30 years and 9 months before present hospitalization. Read More

    Conjunctival Tumors: Review of Clinical Features, Risks, Biomarkers, and Outcomes--The 2017 J. Donald M. Gass Lecture.
    Asia Pac J Ophthalmol (Phila) 2017 Mar-Apr;6(2):109-120
    Ocular Oncology Service, Wills Eye Hospital, Thomas Jefferson University, Philadelphia, PA.
    Conjunctival tumors encompass a broad range of diagnoses. The 3 most important malignant tumors include ocular surface squamous neoplasia (OSSN) (14%), melanoma (12%), and lymphoma (7%). Conjunctival malignancies are rarely found in children. Read More

    Primary intranasal melanoma with brain invasion in a dog.
    Can Vet J 2017 Apr;58(4):391-396
    Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, Ontario N1G 2W1 (Lemetayer); Department of Small Animal Clinical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, 52 Campus Drive, Saskatoon, Saskatchewan S7N 5B4 (Al-Dissi, Tryon, MacDonald-Dickinson).
    A 6-year-old castrated male boxer dog with right-sided dark purulent nasal discharge and acute bilateral blindness was diagnosed on magnetic resonance imaging (MRI) and then on necropsy with primary nasal malignant melanoma that extended into the brain, as well as concurrent ocular melanosis. There was no evidence of metastasis in other organs. Read More

    Metastatic melanoma with features of blue nevus and tumoral melanosis identified during pembrolizumab therapy.
    JAAD Case Rep 2017 Mar 15;3(2):135-137. Epub 2017 Mar 15.
    Department of Dermatology, Penn State Health Hershey Medical Center, Hershey, Pennsylvania.
    Metastatic melanoma may exhibit clinical or histologic features of blue nevus. Pembrolizumab therapy is associated with regression and tumoral melanosis. We report on a man with widespread metastatic melanoma on pembrolizumab therapy in whom a blue-grey papule developed on the left side of his neck that clinically resembled a blue nevus and histologically showed features of both blue nevus and tumoral melanosis. Read More

    Tumoral Melanosis Associated with Pembrolizumab-Treated Metastatic Melanoma.
    Cureus 2017 Feb 13;9(2):e1026. Epub 2017 Feb 13.
    Department of Dermatology, University of California, San Diego.
    Tumoral melanosis is a form of completely regressed melanoma that usually presents as darkly pigmented lesions suspicious for malignant melanoma. Histology reveals dense dermal and subcutaneous infiltration of melanophages. Pembrolizumab is an antibody directed against programmed death receptor-1 (PD1) and is frontline treatment for advanced melanoma. Read More

    [Correlation between chronic constipation and colorectal neoplasms].
    Zhonghua Wei Chang Wai Ke Za Zhi 2017 Mar;20(3):255-257
    Department of General Surgery, Center of Constipation Diagnosis and Treatment, Institute of Surgery Research, Daping Hospital, Third Military Medical University, Chongqing 400042, China.
    The correlation between chronic constipation and colorectal neoplasms has been arousing wide interest. There have been a number of domestic and international epidemiological and clinical researches focusing on this issue. Based on these researches, the correlation between constipation and colorectal neoplasms was studied from three aspects: constipation and colorectal polyps; constipation and colorectal cancer; melanosis coli (MC), laxatives and colorectal neoplasms. Read More

    Melanosis coli in patients with colon cancer.
    Prz Gastroenterol 2017 29;12(1):22-27. Epub 2016 Dec 29.
    Department of Gastroenterology and Metabolic Diseases, Medical University of Warsaw, Warsaw, Poland.
    Introduction: Melanosis coli is a benign lesion affecting the mucosa of the large intestine. There is a relationship between the presence of melanosis and anthraquinone laxative use. Melanosis coli is also observed in patients with colon cancer, but there is doubt whether these two conditions are related. Read More

    Pigmentation phenotype, photosensitivity and skin neoplasms in patients with myotonic dystrophy.
    Eur J Neurol 2017 May 20;24(5):713-718. Epub 2017 Mar 20.
    Clinical Genetics Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Bethesda, MD, USA.
    Background And Purpose: Recent studies have suggested a possible excess risk of skin neoplasms in patients with myotonic dystrophy (DM). Risk factors related to this observation have not been defined.

    Method: Information regarding personal history of skin tumors, pigmentation phenotype, and skin reaction to sun exposure were collected from 266 DM patients who were enrolled in the US National Institutes of Health National Registry of Myotonic Dystrophy and Facioscapulohumeral Muscular Dystrophy Patients and Family Members. Read More

    [Allogeneic cultured limbal epithelial transplantation: a clinical observation of its treatment effects on large conjunctival lesions].
    Zhonghua Yan Ke Za Zhi 2017 Mar;53(3):172-176
    Qingdao Eye Hospital, Shandong Eye Institute, Qingdao 266071, China.
    Objective: To introduce the surgical methods and investigate the treatment effects of conjunctival lesion resection combined with transplantation of allogeneic limbal epithelia cultured in vitro for treatment of varied large conjunctival lesions. Methods: A retrospective analysis of case data of the patients receiving transplantation of allogeneic limbal epithelia cultured in vitro for large conjunctival lesions at Qingdao Eye Hospital from January 2013 to December 2015 was conducted. Fresh donor corneal limbal epithelial tissues were obtained for cellular digestion and isolation. Read More

    Phacomatosis pigmentovascularis of cesioflammea type.
    An Bras Dermatol 2016 Sep-Oct;91(5 suppl 1):54-56
    Instituto de Dermatologia Professor Rubem David Azulay - Santa Casa da Misericórdia do Rio de Janeiro (IDPRDA - SCMRJ) - Rio de Janeiro (RJ), Brazil.
    Phacomatosis pigmentovascularis is a rare syndrome, defined as the simultaneous presence of vascular nevus and melanocytic nevus in the same patient. We report the case of a 53-year-old woman presented with dermal melanosis and extensive vascular nevus, which match the typical manifestations of phakomatosis pigmetovascularis of cesioflammea type, according to Happle's classification. The rare occurrence of this genodermatosis and the clinical exuberance of the skin lesions motivated this case report. 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

    A novel mutation in the STK11 gene causes heritable Peutz-Jeghers syndrome - a case report.
    BMC Med Genet 2017 Feb 23;18(1):19. Epub 2017 Feb 23.
    Faculty of Forensic Medicine, Zhongshan School of Medicine, Sun Yat-Sen University, No. 74 Zhongshan 2 Road, Guangzhou, 510080, China.
    Background: Peutz-Jeghers syndrome (PJS) is a rare disorder characterized by multiple gastrointestinal hamartomatous polyps and mucocutaneous pigmentation. STK11 has been identified as a causative gene for this disease.

    Case Presentation: Herein we report a Chinese Han kindred with PJS. Read More

    Soft palatal melanosis, a simple predictor for neoplasia in the upper aerodigestive tract in Japanese alcoholic men.
    Cancer Sci 2017 May 24;108(5):1058-1064. Epub 2017 Apr 24.
    Department of Health Promotion, National Institute of Public Health, Wako, Japan.
    Soft palatal melanosis can be detected by visual inspection during routine physical examination or even personally in a mirror. The aim of this study was to evaluate the association between squamous cell neoplasia in the upper aerodigestive tract (UAT) and soft palatal melanosis. We reviewed digitized records of high-quality endoscopic images of the soft palate of 1786 Japanese alcoholic men who underwent endoscopic screening. Read More

    Sun-protective behaviors in patients with cutaneous hyperpigmentation: A cross-sectional study.
    J Am Acad Dermatol 2017 May 16;76(5):841-846.e2. Epub 2017 Feb 16.
    Department of Dermatology, Boston University School of Medicine, Boston, Massachusetts. Electronic address:
    Background: Disorders of hyperpigmentation are seen commonly in clinical practice. Despite numerous studies investigating sun-protective habits among healthy persons, little is known about these behaviors within patient populations with hyperpigmentation disorders.

    Objective: We sought to examine photo-protective behaviors and their associations in individuals with disorders of hyperpigmentation. Read More

    African ancestry is associated with facial melasma in women: a cross-sectional study.
    BMC Med Genet 2017 Feb 17;18(1):17. Epub 2017 Feb 17.
    Department of Dermatology, FMB-Unesp, Botucatu, SP, Brazil.
    Background: Melasma is a chronic acquired focal hypermelanosis affecting photoexposed areas, especially for women during fertile age. Several factors contribute to its development: sun exposure, sex steroids, medicines, and family history. Melanic pigmentation pathway discloses several SNPs in different populations. Read More

    [Primary malignant melanoma in the brain of a 7-month-old sheep (Ovis aries f. domestica)].
    Tierarztl Prax Ausg G Grosstiere Nutztiere 2017 Apr 15;45(2):108-111. Epub 2017 Feb 15.
    Dr. Dr. habil. Wolfram Breuer, Bayerisches Landesamt für Gesundheit und Lebensmittelsicherheit, Oberschleißheim, Veterinärstraße 2, 85764 Oberschleißheim, E-Mail:
    A case of malignant melanoma in a sheep's brain is described for the first time. In a 7-month-old sheep that had been euthanized due to ataxia, post-mortem and histopathologic examinations were performed. Both the brain and the calvarium were heavily infiltrated with neoplastic tissue. Read More

    Common Skin Conditions in Children: Neonatal Skin Lesions.
    FP Essent 2017 Feb;453:11-17
    University of North Carolina Chapel Hill School of Medicine Dermatology Residency Program, 410 Market St. Suite 400 CB#7715, Chapel Hill, NC 27516.
    Skin findings during the initial month of life are ubiquitous. One study estimated that more than 95% of newborns have cutaneous findings, which often are distressing to parents but frequently are benign and self-limited. Among them are milia, cutis marmorata, congenital dermal melanocytosis, and the benign neonatal pustular eruptions (eg, benign cephalic pustulosis, erythema toxicum neonatorum, transient neonatal pustular melanosis). Read More

    Combined Jessner Solution and Trichloroacetic Acid Versus Trichloroacetic Acid Alone in the Treatment of Melasma in Dark-Skinned Patients.
    Dermatol Surg 2017 May;43(5):651-656
    *All authors are affiliated with the Department of Dermatology, Venereology and Andrology, Faculty of Medicine, Assiut University, Assiut, Egypt.
    Background: Melasma is a common challenging pigmentary skin disorder especially in dark-skinned females urging them to seek medical help. Many modalities of treatment are available, but none is satisfactory.

    Objective: To compare safety and efficacy of combined trichloroacetic acid (TCA) (20%-25%) and Jessner's solution versus TCA (20%-25%) alone in dark patients with melasma. Read More

    A study of the association of acanthosis nigricans with subclinical atherosclerosis.
    Indian J Dermatol Venereol Leprol 2017 Mar-Apr;83(2):190-194
    Cardiovascular Research Unit, CUCS, University of Guadalajara, Guadalajara, Jalisco, México.
    Background: Hyperinsulinism is related to the presence of acanthosis nigricans and atherosclerosis; however, we were unable to find any study on the prevalence of atherosclerosis in acanthosis nigricans.

    Aims: To evaluate the prevalence of carotid atherosclerosis and metabolic alterations in Mexican patients with acanthosis nigricans.

    Methods: We carried out a cross-sectional study that included 45 patients with acanthosis nigricans, age- and gender-matched with 45 healthy participants. Read More

    Immunohistochemical profiling including beta-catenin in conjunctival melanocytic lesions.
    Exp Mol Pathol 2017 Apr 1;102(2):198-202. Epub 2017 Feb 1.
    Department of Pathology, Division of Neuropathology, University of Washington School of Medicine and Harborview Medical Center, Seattle, WA, United States. Electronic address:
    Conjunctival melanocytic lesions encompass a group of clinically diverse, benign to malignant, neoplasms that may contain overlapping histopathological features, making definitive diagnosis challenging in some cases. In this series, we compared multiple immunohistochemical (IHC) markers in 11 conjunctival nevi, 10 primary acquired melanosis (PAM) lesions, and 11 conjunctival melanomas. Immunostains included the melanocytic markers HMB-45 and Melan-A, as well as the proliferative marker Ki-67. Read More

    [Melanocytoma and meningeal melanocytosis, similar but different lesions].
    Cir Cir 2017 May - Jun;85(3):273-278. Epub 2017 Jan 23.
    Servicio de Patología, Hospital Juárez de México, Ciudad de México, México.
    Background: Meningeal melanomatosis is an extra-axial well-encapsulated malignant tumour with diffuse meningeal growth and dark coloration (due to high melanin contents), while meningeal melanocytoma is the focalized benign variant. Melanocytic lesions may be secondary to melanoma or be histologically benign, however, their diffuse nature makes them impossible to cure. Melanocytosis is a diffuse tumour that can form solitary extra-axial tumours, which invades the parenchyma and presents signs of malignancy with increased mitosis and Ki67, observed in 1 to 6% of immunopathological exams. Read More

    Clinical Features Differentiating Benign From Malignant Conjunctival Tumors in Children.
    JAMA Ophthalmol 2017 Mar;135(3):215-224
    Ocular Oncology Service, Wills Eye Hospital, Thomas Jefferson University, Philadelphia, Pennsylvania.
    Importance: Conjunctival tumors in children are usually benign and rarely malignant.

    Objective: To evaluate clinical features of conjunctival tumors in children by comparing benign tumors with their malignant counterparts.

    Design, Setting, And Participants: This retrospective case series reviewed 806 cases of conjunctival tumor in children (aged <21 years) who were evaluated at a tertiary referral center between November 1, 1975, and July 1, 2015. Read More

    Primary cerebral malignant melanoma: A case report with literature review.
    Medicine (Baltimore) 2017 Jan;96(4):e5805
    aDepartment of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University bDepartment of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Dongcheng District, Beijing, P. R. China cDepartment of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Harvard University, Boston, MA dDepartment of Neurovascular Surgery, Chinese Armed Police General Hospital, Haidian District eDepartment of Neurosurgery, Xuanwu Hospital, Capital Medical University, Xuanwu District, Beijing, P. R. China.
    Primary intracranial melanomas are uncommon and constitute approximately 1% of all melanoma cases and 0.07% of all brain tumors. In nature, these primary melanomas are very aggressive and can spread to other organs. Read More

    Congenital Melanocytic Nevus Syndrome: A Case Series.
    Actas Dermosifiliogr 2017 Jan 19. Epub 2017 Jan 19.
    Servicio de Anatomía Patológica, Complejo Hospitalario de Toledo, Toledo, España.
    Congenital melanocytic nevus syndrome (CMNS) is the result of an abnormal proliferation of melanocytes in the skin and central nervous system caused by progenitor-cell mutations during embryonic development. Mutations in the NRAS gene have been detected in many of these cells. We present 5 cases of giant congenital melanocytic nevus, 3 of them associated with CMNS; NRAS gene mutation was studied in these 3 patients. Read More

    1 OF 169