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    1128 results match your criteria Disorders of Oral Pigmentation

    1 OF 23

    Close and regular surveillance is key to prevent severe complications for Peutz-Jeghers syndrome patients without gastrointestinal polyps: case report of a novel STK11 mutation (c.471_472delCT) in a Chinese girl.
    BMC Surg 2018 Apr 23;18(1):24. Epub 2018 Apr 23.
    Department of Gastroenterology, Airforce General Hospital of PLA, 30 Fucheng Rd, Beijing, 100142, China.
    Background: Peutz-Jeghers syndrome (PJS) is a Mendelian disease characterized by gastrointestinal hamartomas, mucocutaneous pigmentation (MP), and increased cancer risk. Serine/threonine kinase 11 (STK11) is the only validated causative gene in PJS. Clinical observation reveals MP and intussusception in childhood are more frequent and severe than in adults. Read More

    Pigmented squamous cell carcinoma: case report and importance of differential diagnosis.
    An Bras Dermatol 2018 Jan-Feb;93(1):96-98
    Division of Surgery at Fundação Alfredo da Matta (FUAM) - Manaus (AM), Brazil.
    A few cases of pigmented squamous cell carcinoma affecting the skin and the ocular and oral mucosa of the elderly have been described in the literature. The disease manifests itself as papular and nodular erythematous or pigmented lesions. The main clinical differential diagnoses are pigmented basal cell carcinoma and melanoma. Read More

    Case Report: Dermoscopic features of oral lichen planus - the evolution of mucoscopy.
    F1000Res 2018 6;7:284. Epub 2018 Mar 6.
    Department of Dermatology, College of Medicine, King Faisal University, Hofuf, Saudi Arabia.
    Dermoscopy, a non-invasive technique for cutaneous diagnosis is being increasingly studied in various disorders of the skin, nails and scalp. However, it has been under-utilized for the diagnosis and characterization of mucosal disorders. The dermoscopic characterization of cutaneous lichen planus and its variants has been well documented with Wickham's striae constituting the hallmark of the condition. Read More

    Double-blind, Placebo-controlled Trial to Evaluate the Effectiveness of Extract in the Treatment of Melasma in Asian Skin: A Pilot Study.
    J Clin Aesthet Dermatol 2018 Mar 1;11(3):14-19. Epub 2018 Mar 1.
    Drs. Goh, Chuah, and Thng are with the National Skin Centre in Singapore.
    Melasma is a common pigmentary disorder with a multifactorial etiology that can hinder its management. The aqueous extract of the fern (PLE), Fernblock (IFC, Madrid, Spain), has demonstrated antioxidant and photoprotective activities and has been used for the treatment of several pigmentary disorders. The aim of this study was to evaluate the efficacy and safety of oral PLE in the treatment of melasma in Asian patients. Read More

    Micro - Focused Phototherapy Associated To Janus Kinase Inhibitor: A Promising Valid Therapeutic Option for Patients with Localized Vitiligo.
    Open Access Maced J Med Sci 2018 Jan 21;6(1):46-48. Epub 2018 Jan 21.
    University G. Marconi of Rome, Dermatology and Venereology, Rome, Italy.
    Background: Vitiligo is an acquired pigmentary cutaneous disease, characterised by the progressive loss of melanocytes, resulting in hypopigmented skin areas which progressively become amelanotic. Classically, vitiligo treatments are unsatisfactory and challenging. Despite the continuous introduction of new therapies, phototherapy is still the mainstay for vitiligo repigmentation. Read More

    Functional and cosmetic donor site morbidity of the radial forearm-free flap: comparison of two different coverage techniques.
    Eur Arch Otorhinolaryngol 2018 May 26;275(5):1219-1225. Epub 2018 Feb 26.
    Clinic of Otolaryngology, Head and Neck Surgery and Department of Head Medicine and Oral Health, University Hospital Leipzig, Liebigstr. 12, 04103, Leipzig, Germany.
    Background: The use of the radial forearm-free flap is a well-established and reliable reconstruction method in head and neck surgery. Usually, the defect of the donor site is covered with full or split-thickness skin grafts. Since 09/2013, a direct closure of the radial forearm donor site has been performed at the ENT University Hospital Leipzig to avoid secondary donor site morbidity. Read More

    An unusual presentation of primary cutaneous amyloidosis.
    Dermatol Online J 2017 Aug 15;23(8). Epub 2017 Aug 15.
    Department of Dermatology and STD, Lady Hardinge Medical College. New Delhi, India.
    Primary localized cutaneous amyloidosis refers to a group of disorders characterized by deposition of amyloid in the dermis without any systemic involvement. It comprises the following clinical types: macular, lichenoid, nodular, and biphasic. There are also rare variants such as amyloidosis cutis dyscromica and poikiloderma-like cutaneous amyloidosis. Read More

    Cowden syndrome: clinical case and a brief review.
    Dermatol Online J 2017 Aug 15;23(8). Epub 2017 Aug 15.
    Department of Dermatology and Venereology, Centro Hospitalar São João EPE, Porto, Portugal.
    Cowden syndrome is a rare genodermatosis of autosomal dominant inheritance characterized by multiple hamartomas in several organs and an increased risk of malignancies. We present the case of a 53-year-old man with a history of benign and malignant thyroid disease, intestinal polyposis, and Chiari malformation. He had several trichilemmomas, papillomatosis of the oral cavity, macular pigmentation of the glans penis, among other clinical features suggestive of Cowden syndrome. Read More

    Health Survey of Adults with Neurofibromatosis 1 Compared to Population Study Controls.
    J Genet Couns 2018 Feb 10. Epub 2018 Feb 10.
    Frambu Resource Centre for Rare Disorders, Sandbakkvn 18, Siggerud, Norway.
    Neurofibromatosis type 1 (NF1) is a genetic, autosomal dominant multi-organ disease characterized by susceptibility to tumor formation, changes in skin pigmentation, skeletal abnormalities, and neuropsychological deficits. Clinical studies have shown impaired health-related quality of life (HQoL) in adults with NF1. However, little is known about HQoL in non-clinical NF1 samples. Read More

    Longitudinal observation of subretinal fibrosis in Vogt-Koyanagi-Harada disease.
    BMC Ophthalmol 2018 Jan 15;18(1). Epub 2018 Jan 15.
    Ophthalmology Department, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, 1 Shuaifuyuan, Wangfujing, Dongcheng District, Beijing, 100730, China.
    Background: Subretinal fibrosis (SRF) is a vision-threatening complication of Vogt-Koyanagi-Harada disease (VKH). It has long been recognized as a sequela of chronic inflammation. The developmental process of SRF, however, has not been described. Read More

    Oral mucosa lesions and gingival bleeding can indicate the progression of liver disease in children and adolescents aged two to 18 years.
    Acta Paediatr 2018 May 24;107(5):886-892. Epub 2018 Jan 24.
    Department of Gastroenterology, Hepatology, Nutritional Disorders and Pediatrics, Children's Memorial Health Institute, Warsaw, Poland.
    Aim: This study assessed correlations between systemic disturbances of paediatric chronic liver diseases (CLD) and oral symptoms in subjects aged 2-18 years.

    Methods: It was carried out during outpatient appointments at the Children's Memorial Health Institute, Warsaw, Poland, from 2010 to 2015 and comprised 52 CLD patients with a mean age of 12.3 ± 4. Read More

    A Novel Generalized Lipodystrophy-Associated Progeroid Syndrome Due to Recurrent Heterozygous LMNA p.T10I Mutation.
    J Clin Endocrinol Metab 2018 Mar;103(3):1005-1014
    Division of Nutrition and Metabolic Diseases, Department of Internal Medicine, Center for Human Nutrition, UT Southwestern Medical Center, Dallas, Texas.
    Background: Lamin A/C (LMNA) gene mutations cause a heterogeneous group of progeroid disorders, including Hutchinson-Gilford progeria syndrome, mandibuloacral dysplasia, and atypical progeroid syndrome (APS). Five of the 31 previously reported patients with APS harbored a recurrent de novo heterozygous LMNA p.T10I mutation. Read More

    Facial Acanthosis Nigricans: A Morphological Marker of Metabolic Syndrome.
    Indian J Dermatol 2017 Nov-Dec;62(6):591-597
    Department of Dermatology, Dr B. C. Roy Post Graduate Institute of Pediatric Sciences, Kolkata, West Bengal, India.
    Introduction: Acanthosis nigricans (AN) is a frequently encountered entity. Facial AN (FAN) is a subset of AN which is being increasingly recognized. Recently, reports hypothesizing the association of FAN with features of metabolic syndrome have been published. Read More

    A novel germline mutation (c.A527G) in STK11 gene causes Peutz-Jeghers syndrome in a Chinese girl: A case report.
    Medicine (Baltimore) 2017 Dec;96(49):e8591
    aDepartment of Medical Genetics, Naval Medical University, Shanghai 200433, ChinabHebei North University, Zhangjiakou, Hebei Province, ChinacDepartment of Gastroenterology, Airforce General Hospital of PLA, Beijing, China.
    Rationale: Peutz-Jeghers syndrome (PJS) is a Mendelian autosomal dominant disease caused by mutations in the tumor suppressor gene, serine/threonine kinase 11 (STK11). The features of this syndrome include gastrointestinal (GI) hamartomas, melanin spots on the lips and the extremities, and an increased risk of developing cancer. Early onset of disease is often characterized by mucocutaneous pigmentation and intussusception due to GI polyps in childhood. Read More

    Whole-exome sequencing of oral mucosal melanoma reveals mutational profile and therapeutic targets.
    J Pathol 2018 Mar 5;244(3):358-366. Epub 2018 Feb 5.
    Bio-X Institutes, Ministry of Education Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders, Institute of Social Cognitive and Behavioral Sciences, Shanghai Jiao Tong University, Shanghai, PR China.
    Oral mucosal melanoma (OMM) is a rare and aggressive subtype of melanoma with little known about its pathogenesis or carcinogenesis. We therefore performed whole-exome sequencing (WES) on 19 matched OMM tumor/normal pairs in order to gain insight into potential genetic drivers of tumor formation. For the first time, we describe the comprehensive mutational profile of OMM. Read More

    Correlation of mucocutaneous manifestations of HIV-infected patients in an ART center with CD4 counts.
    Indian J Dent Res 2017 Sep-Oct;28(5):549-554
    Department of Oral and Maxillofacial Pathology, Vokkaligara Sangha Dental College, Bengaluru, Karnataka, India.
    Background: As the search for reliable clinical indicators for management of human immunodeficiency virus/AIDS continues, mucocutaneous manifestations of HIV are considered among key clinical indicators for prediction of underlying degree of immunosuppression, systemic opportunistic infections, and disease progression.

    Objectives: (1) To study the prevalence of mucocutaneous manifestations in HIV-seropositive patients attending the ART center of our hospital (2) To correlate mucocutaneous manifestations with CD4 cell counts.

    Materials And Methods: A total of 200 HIV-seropositive patients of adult age group visiting our hospital were included in the study. Read More

    Identification of genes encoding glycosyltransferases involved in lipopolysaccharide synthesis in Porphyromonas gingivalis.
    Mol Oral Microbiol 2018 Feb 17;33(1):68-80. Epub 2017 Nov 17.
    Department of Microbiology and Oral Infection, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.
    Porphyromonas gingivalis can synthesize both A-LPS and O-LPS lipopolysaccharides, which contain anionic O-polysaccharides and conventional O-polysaccharides, respectively. A-LPS can anchor virulence proteins to the cell surface, so elucidating the mechanism of A-LPS synthesis is important for understanding the pathogenicity of this bacterium. To identify the genes involved in LPS synthesis, we focused on uncharacterized genes encoding the glycosyltransferases, PGN_0361, PGN_1239, PGN_1240 and PGN_1668, which were tentatively named gtfC, gtfD, gtfE and gtfF, respectively, and characterized their mutants. Read More

    Malignant transformation of oral leukoplakia in a patient with dyskeratosis congenita.
    Oral Surg Oral Med Oral Pathol Oral Radiol 2017 Oct 12;124(4):e239-e242. Epub 2017 Aug 12.
    Department of Dermatology, Walter Reed National Military Medical Center, Bethesda, MD, USA.
    Dyskeratosis congenita (DC) is a rare, inherited, bone marrow failure syndrome caused by premature telomere shortening. The classic mucocutaneous triad of clinical features comprises reticulated skin pigmentation, nail dysplasia, and oral leukoplakia. Multiple somatic features, including bone marrow failure, pulmonary fibrosis, and liver disease, are also common. Read More

    Khat (Catha edulis) and its oral health effects: An updated review.
    J Investig Clin Dent 2018 Feb 19;9(1). Epub 2017 Aug 19.
    Department of Restorative and Prosthetic Dental Sciences, Dar Al Uloom University, Riyadh, Saudi Arabia.
    Khat or qat (Catha edulis) is a plant that grows in East Africa and southern Arabia. The leaves and twigs of this small tree are chewed by several millions of people worldwide for their stimulating amphetamine-like effects. The reported prevalence of khat chewing in Europe and the USA is on the rise, especially with global migration. Read More

    Melasma: an Up-to-Date Comprehensive Review.
    Dermatol Ther (Heidelb) 2017 Sep 19;7(3):305-318. Epub 2017 Jul 19.
    Ronald O. Perelman Department of Dermatology, New York University, New York, NY, USA.
    Melasma is a common acquired condition of symmetric hyperpigmentation, typically occurring on the face, with higher prevalence in females and darker skin types. Multiple etiologies, including light exposure, hormonal influences, and family history, have been implicated in the pathogenesis of this disorder. Overall prevalence ranges widely at 1-50%, since values are typically calculated within a specific ethnic population within a geographic region. Read More

    Multifocal oral melanoacanthoma associated with Addison's disease and hyperthyroidism: a case report.
    Arch Endocrinol Metab 2017 Jul-Aug;61(4):403-407. Epub 2017 Jun 26.
    Divisão de Patologia Oral, Universidade Federal do Ceará (UFC), Fortaleza, CE, Brasil.
    Oral melanoacanthoma is a mucocutaneous, pigmented, rare, benign, and probably reactive lesion. This paper reports for the first time in the literature a case of multifocal oral melanoacanthoma in a patient diagnosed with Addison's disease and concomitant Graves' disease with hyperthyroidism. The patient presented with oral pigmented lesions, which were hypothesized to be mucosal pigmentation associated with Addison's disease. Read More

    Retrospective study on the characteristics and treatment of late-onset vitiligo.
    Indian J Dermatol Venereol Leprol 2017 Sep-Oct;83(5):625
    National Skin Centre; Skin Research Institue of Singapore, ASTAR, Singapore.
    Background: Late-onset vitiligo, defined as being aged 50 years and above at the point of clinical onset, remains poorly characterized till now.

    Aim: This study aims to describe the clinical characteristics and treatment response of patients with late-onset vitiligo.

    Methods: We retrospectively reviewed the case records of all patients diagnosed with late-onset vitiligo, from January 1, 2010 to December 31, 2014. Read More

    [Efficacy and safety of Xiaoaiping combined with chemotherapy in the treatment of advanced esophageal cancer].
    Zhonghua Zhong Liu Za Zhi 2017 Jun;39(6):453-457
    Department of Oncology, Huaihe Hospitalof Henan University, Kaifeng, 475000, China.
    To evaluate the efficacy and safety of Xiaoaiping combined with chemotherapy in the treatment of advanced esophageal cancer. This is a multi-center, randomized, open label and parallel controlled study. A total of 124 advanced esophageal cancer patients with Karnofsky Performance Status (KPS) score ≥60 and expected survival time≥3 months were enrolled. Read More

    Laugier-Hunziker syndrome: a case of asymptomatic mucosal and acral hyperpigmentation.
    Dermatol Pract Concept 2017 Apr 30;7(2):27-30. Epub 2017 Apr 30.
    Department of Dermatology, University Hospital Zurich, Zurich Switzerland.
    Laugier-Hunziker syndrome (LHS) is a rare condition characterized by acquired hyperpigmentation involving the lips, oral mucosa, acral surfaces, nails and perineum. While patients with LHS may manifest pigmentation in all of the aforementioned areas, most present with pigmentation localized to only a few of these anatomical sites. We herein report a patient exhibiting the characteristic pigment distribution pattern associated with LHS. Read More

    Using Tn-seq To Identify Pigmentation-Related Genes of Porphyromonas gingivalis: Characterization of the Role of a Putative Glycosyltransferase.
    J Bacteriol 2017 07 27;199(14). Epub 2017 Jun 27.
    Department of Molecular Biology and Microbiology, Tufts University, Boston, Massachusetts, USA
    Cellular pigmentation is an important virulence factor of the oral pathogen Pigmentation has been associated with many bacterial functions, including but not limited to colonization, maintaining a local anaerobic environment by binding oxygen molecules, and defense against reactive oxygen species (ROS) produced by immune cells. Pigmentation-associated loci identified to date have involved lipopolysaccharide, fimbriae, and heme acquisition and processing. We utilized a transposon mutant library of strain ATCC 33277 and screened for pigmentation-defective colonies using massively parallel sequencing of the transposon junctions (Tn-seq) to identify genes involved in pigmentation. Read More

    [Pigmentations of the oral cavity].
    Presse Med 2017 Mar 12;46(3):303-319. Epub 2017 Apr 12.
    Institut universitaire du cancer, Toulouse Oncopole 1, oncodermatologie et consultation pluridisciplinaire de pathologies buccales, avenue Irène-Joliot-Curie, 31100 Toulouse, France.
    Buccal mucosa color is explained by hemoglobin in the vessels and melanin in the epithelium. Abnormal presence of melanin pigments (hypermelaninosis, hypermelanocytosis), hematic pigments (hemoglobin, hemosiderin, iron) but also some exogenous circonstancies explain pigmented lesions (figure 1). These lesions could be localized (single lesions), multifocal (multiple lesions) or diffused. Read More

    The Role of Diet and Supplements in Vitiligo Management.
    Dermatol Clin 2017 Apr;35(2):235-243
    Vitiligo & Pigmentation Institute of Southern California, 5670 Wilshire Boulevard, #650, Los Angeles, CA 90036, USA.
    Vitiligo is an autoimmune disorder that involves the interplay between oxidative stress and the immune system. Preliminary observations suggest that the presence of gluten in the diet may play a role in vitiligo development in some patients, but to date vitiligo-specific diets have not been studied. The role of oral supplements, including vitamins, minerals, and botanicals, is increasingly being investigated as adjuncts to conventional medical treatment due to their antioxidant and immunomodulatory activity. Read More

    Multicenter, randomized, open-label Phase II study comparing S-1 alternate-day oral therapy with the standard daily regimen as a first-line treatment in patients with unresectable advanced pancreatic cancer.
    Cancer Chemother Pharmacol 2017 Apr 1;79(4):813-823. Epub 2017 Mar 1.
    Kitasato Institute for Life Science, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan.
    Purpose: Non-inferiority for overall survival (OS) following alternate-day treatment with the oral anticancer drug S-1 compared with standard daily treatment was assessed in Japanese patients with unresectable advanced pancreatic cancer in a multicenter, randomized, phase II study. This trial was registered at the UMIN Clinical Trials Registry (no. 000008604). 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

    Common Skin Conditions in Children: Noninfectious Rashes.
    FP Essent 2017 Feb;453:18-25
    University of North Carolina Chapel Hill School of Medicine Dermatology Residency Program, 410 Market St. Suite 400 CB#7715, Chapel Hill, NC 27516.
    Cutaneous adverse drug reactions are among the most common noninfectious rashes of childhood. Cutaneous adverse drug reactions are classified as morbilliform, urticarial, bullous, pustular, or psoriasiform. Atopic dermatitis is one of the most common inflammatory cutaneous eruptions, and is characterized by pruritus and flexural distribution. Read More

    Treatment Concept for a Patient with a High Smile Line and Gingival Pigmentation: A Case Report.
    Int J Periodontics Restorative Dent 2017 Mar/Apr;37(2):e142-e148
    Today, innovative restorative materials and techniques allow for minimally invasive prosthetic procedures, which are paramount to the preservation of hard and soft dental tissues. An integrated approach combining dental and esthetic medical therapies could be useful to improve the quality of life of patients, improving function, esthetics, and self-confidence. Oral esthetics depends on several variables, including tooth visibility and proportions as well as healthy gingival tissues. Read More

    Pharmacokinetics and Pharmacodynamics of Afamelanotide and its Clinical Use in Treating Dermatologic Disorders.
    Clin Pharmacokinet 2017 Aug;56(8):815-823
    Stadtspital Triemli, Institute of Laboratory Medicine, Zurich, Switzerland.
    Afamelanotide, the first α-melanocyte-stimulating hormone (MSH) analogue, synthesized in 1980, was broadly investigated in all aspects of pigmentation because its activity and stability were higher than the natural hormone. Afamelanotide binds to the melanocortin-1 receptor (MC1R), and MC1R signaling increases melanin synthesis, induces antioxidant activities, enhances DNA repair processes and modulates inflammation. The loss-of-function variants of the MC1R present in fair-skinned Caucasians are less effectively activated by the natural hormone. Read More

    Dermatological adverse events with taxane chemotherapy.
    Eur J Dermatol 2016 Oct;26(5):427-443
    Dermatology Service, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
    Taxanes (docetaxel and paclitaxel) are among the most commonly prescribed anticancer drugs approved for the treatment of metastatic or locally advanced breast, non-small cell lung, prostate, gastric, head and neck, and ovarian cancers, as well as in the adjuvant setting for operable node-positive breast cancers. Although the true incidence of dermatological adverse events (AEs) in patients receiving taxanes is not known, and has never been prospectively analysed, they clearly represent one of the major AEs associated with these agents. With an increase in the occurrence of cutaneous AEs during treatment with novel targeted and immunological therapies when used in combination with taxanes, a thorough understanding of reactions attributable to this class is imperative. Read More

    Trauma due to Self-aggression in Patient with Waardenburg Syndrome associated with Congenital Anomalies.
    J Contemp Dent Pract 2016 Aug 1;17(8):702-5. Epub 2016 Aug 1.
    Department of Dentistry, Universidade do Sagrado Coração, São Paulo, Brazil.
    Waardenburg syndrome (WS) is an inherited autosomal dominant genetic disorder presenting variable penetrance and expressivity, with an estimated prevalence of 1:42,000. Clinical characteristics of WS include lateral displacement of the internal eye canthus, hyperplasia of the medial portion of the eyebrows, prominent and broad nasal base, congenital deafness, pigmentation of the iris and skin, and white forelock. A 24-year-old male patient, previously diagnosed with WS, was referred to the Special Needs Dental Clinic of Sacred Heart University, Bauru, Brazil. Read More

    Salt and Pepper Pigmentation - Skin Manifestation of Systemic Sclerosis.
    J Assoc Physicians India 2015 Sep;63(9):70
    Postgraduate Student, Dept. of General Medicine, Govt. Mohan Kumaramangalam Medical College and Hospital, Salem, Tamil Nadu.
    A 50 year old male presented with progressive difficulty in swallowing both liquid and solid food with no history of Raynaud's phenomenon. A general examination revealed skin changes in the form of thickening, hyperpigmentation and tightening of skin of fingers, hand, forearm and legs. The patient had painless skin induration over the legs, forearm and hand. Read More

    Dyskeratosis congenita presenting with dysphagia.
    Indian Dermatol Online J 2016 Jul-Aug;7(4):275-7
    Department of Dermatology, Venereology and Leprosy, Geetanjali Medical College and Hospital, Udaipur, Rajasthan, India.
    Dyskeratosiscongenita (DKC) is a genetically heterogeneous disease of defective telomere maintenance that may demonstrate different patterns of inheritance. It is characterized by thetriad of dystrophy of the nails, leukokeratosis of the oral mucosa, and extensive net-like pigmentation of the skin. We report a case ofDKC who presented with a chief complaint of dysphagia. Read More

    [Laugier-Hunziker syndrome in a patient with Sjögren’s syndrome: Report of one case].
    Rev Med Chil 2016 May;144(5):671-4
    Laugier-Hunziker syndrome is a rare benign idiopathic condition characterized by acquired macular pigmentation of lips and buccal mucosa, often accompanied with melanonychia. The main concern with this condition is to rule out other differential diagnosis with systemic repercussions and similar hyperpigmentation patterns, such as Peutz-Jeghers syndrome, adrenal insufficiency and melanoma. We report a 58-year-old female with a 20-year history of Sjögren’s syndrome, presenting with melanonychia and hyperpigmentation in the buccal mucosa. Read More

    Prurigo Pigmentosa-Report of 3 Cases From Brazil and Literature Review.
    Am J Dermatopathol 2017 Apr;39(4):267-274
    *Departments of Dermatology and Pathology, Hospital Federal de Bonsucesso, Rio de Janeiro, Brazil; †Department of Dermatology, Hospital Federal de Bonsucesso, Rio de Janeiro, Brazil; ‡Department of Dermatology, Hospital Universitário Gafrée e Guinle, Rio de Janeiro, Brazil; §Detartment of Dermatology, Hospital Federal Servidores do Estado, Rio de Janeiro, Brazil; and ¶ID-Investigação em Dermatologia, dermatopathology consultive services, Rio de Janeiro, Brazil.
    Prurigo pigmentosa (PP) is a rare inflammatory disease of the skin of uncertain etiology first reported in Japan. It is typified by recurrent eruptions of itching urticarial macules, papules, vesicopapules, and plaques with a reticular arrangement that quickly resolve leaving a net-like pigmentation. The disease presents specific histopathological features. Read More

    The role of systemic steroids and phototherapy in the treatment of stable vitiligo: a randomized controlled trial.
    Dermatol Ther 2016 Nov 16;29(6):406-412. Epub 2016 Aug 16.
    Dermatology Department, Faculty of Medicine, Cairo University, Cairo, Egypt.
    Pathogenesis of vitiligo is believed to be multifactorial disease with a wide variety of therapeutic modalities. The aim of this work is to assess the efficacy of oral mini-pulse steroids (OMP) plus Nb-U.V. Read More

    Oral microbial community typing of caries and pigment in primary dentition.
    BMC Genomics 2016 08 5;17:558. Epub 2016 Aug 5.
    Department of Preventive & Pediatric Dentistry, The Affiliated Stomatology Hospital of Kunming Medical University, Kunming, Yunnan, 650100, China.
    Background: Black extrinsic discoloration in primary dentition is a common clinical and aesthetic problem that can co-occur with dental caries, the most common oral diseases in childhood. Although the role of bacteria in the formation of pigment and caries in primary dentition is important, their basic features still remain a further mystery.

    Methods: Using targeted sequencing of the V1-V3 hypervariable regions of bacterial 16S ribosomal RNA (rRNA) genes, we obtained a dataset consisting of 831,381 sequences from 111 saliva samples and 110 supragingival plaque samples from 40 patients with pigment (black extrinsic stain), 20 with caries (obvious decay), and 25 with both pigment and caries and from 26 healthy individuals. Read More

    Combination therapy of orally administered glycyrrhizin and UVB improved active-stage generalized vitiligo.
    Braz J Med Biol Res 2016 Jul;49(8)
    Center for Translational Medicine, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China.
    Glycyrrhizin has been used clinically for several years due to its beneficial effect on immunoglobulin E (IgE)-induced allergic diseases, alopecia areata and psoriasis. In this study, glycyrrhizin, ultraviolet B light (UVB) or a combination of both were used to treat active-stage generalized vitiligo. One hundred and forty-four patients between the ages of 3 and 48 years were divided into three groups: group A received oral compound glycyrrhizin (OCG); group B received UVB applications twice weekly, and group C received OCG+UVB. Read More

    Sunitinib in metastatic renal cell carcinoma (mRCC): a developing country experience. Do our patients behave differently than the Western patients?
    Int Urol Nephrol 2016 Nov 23;48(11):1811-1816. Epub 2016 Jul 23.
    Department of Medical Oncology, Sher-i-Kashmir Institute Of Medical Sciences (SKIMS), Srinagar, India.
    Background: Metastatic renal cell carcinoma (mRCC) has historically been refractory to cytotoxic and hormonal agents. IL-2 and IFN-α provide response in a minority of patients. Small molecule tyrosine kinase inhibitors and monoclonal antibodies have established a role in the setting of mRCC. Read More

    Systematic understanding the mechanisms of vitiligo pathogenesis and its treatment by Qubaibabuqi formula.
    J Ethnopharmacol 2016 Aug 2;190:272-87. Epub 2016 Jun 2.
    Center of Bioinformatics, College of Life Science, Northwest A & F University, Yangling, Shaanxi 712100, China. Electronic address:
    Ethnopharmacological Relevance: Vitiligo is a depigmentation disorder, which results in substantial cosmetic disfigurement and poses a detriment to patients' physical as well as mental. Now the molecular pathogenesis of vitiligo still remains unclear, which leads to a daunting challenge for vitiligo therapy in modern medicine. Herbal medicines, characterized by multi-compound and multi-target, have long been shown effective in treating vitiligo, but their molecular mechanisms of action also remain ambiguous. Read More

    Condylomata lata on the ankle: an unusual location.
    Dermatol Pract Concept 2016 Apr 30;6(2):49-51. Epub 2016 Apr 30.
    Department of Dermatology, Tokyo Woman's Medical University Medical Center East, Tokyo, Japan.
    A 43-year-old Japanese man presented with reddish nodules on the ankle. The nodules had a yellowish crust and eroded surface. Dermoscopy revealed red to milky-red globules at the periphery and some glomerular vessels in the center and a whitish-pink network, which corresponded to capillary dilatation in the papillary dermis and prominent acanthosis, respectively. Read More

    Ethiop Med J 2015 Oct;53(4):215-21
    Dyskeratosis congenita (DKC) is a rare, progressive bone marrow failure syndrome that is characterized by the triad of reticulated skin pigmentation, nail dystrophy and oral leukoplakia. Current evidence indicates that DKC is a disease of defective telomere maintenance, ribosome deficiency and protein synthesis dysfunction. Mortality is often associated with bone marrow failure (BMF), development of malignancy and other multisystem complications of the disease. Read More

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