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https://www.readbyqxmd.com/read/28937433/a-case-of-phacomatosis-pigmentokeratotica-associated-with-multiple-basal-cell-carcinomas
#1
Seung-Hee Loh, Bark-Lynn Lew, Woo-Young Sim
Phacomatosis pigmentokeratotica is a recently identified disease characterized by the coexistence of an epidermal nevus with sebaceous differentiation arranged along Blaschko lines and a speckled lentiginous nevus showing a checkerboard pattern, mostly in association with various extracutaneous defects. A 52-year-old man presented with asymptomatic ulcerative plaque on his left side of perioral area. A 2 × 2-cm-sized fleshy colored ulceration on his left perioral area was consistent with basal cell carcinoma with nevus sebaceous...
September 13, 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28936145/efficacy-and-safety-of-short-pulse-erbium-yttrium-aluminum-garnet-laser-treatment-of-becker-s-nevus-in-saudi-patients-a-pilot-study
#2
Fahad Al-Saif, E Al-Mekhadab, H Al-Saif
OBJECTIVE: Becker's nevus (BN) is a benign cutaneous hamartoma. Although different types of lasers have been used to treat the pigmentary part of BN, to date, no definite treatment modality has been determined. The objective of this study is to evaluate the efficacy and safety of erbium: yttrium aluminum garnet (Er: YAG) laser treatment among Saudi patients with BN. PATIENTS AND METHODS: A series of 10 patients (skin phototypes III-V) with BN underwent treatment with an Er: YAG laser...
July 2017: International Journal of Health Sciences
https://www.readbyqxmd.com/read/28935960/combined-activation-of-map-kinase-pathway-and-%C3%AE-catenin-signaling-cause-deep-penetrating-nevi
#3
Iwei Yeh, Ursula E Lang, Emeline Durieux, Meng Kian Tee, Aparna Jorapur, A Hunter Shain, Veronique Haddad, Daniel Pissaloux, Xu Chen, Lorenzo Cerroni, Robert L Judson, Philip E LeBoit, Timothy H McCalmont, Boris C Bastian, Arnaud de la Fouchardière
Deep penetrating nevus (DPN) is characterized by enlarged, pigmented melanocytes that extend through the dermis. DPN can be difficult to distinguish from melanoma but rarely displays aggressive biological behavior. Here, we identify a combination of mutations of the β-catenin and mitogen-activated protein kinase pathways as characteristic of DPN. Mutations of the β-catenin pathway change the phenotype of a common nevus with BRAF mutation into that of DPN, with increased pigmentation, cell volume and nuclear cyclin D1 levels...
September 21, 2017: Nature Communications
https://www.readbyqxmd.com/read/28932095/erratum-treatment-and-classification-of-nevus-of-ota-a-seven-year-review-of-a-single-institution-s-experience
#4
Jae-Hui Nam, Han-Saem Kim, Young Jun Choi, Ho Joo Jung, Won-Serk Kim
[This corrects the article on p. 446 in vol. 29, PMID: 28761293.].
October 2017: Annals of Dermatology
https://www.readbyqxmd.com/read/28925002/verrucous-epidermal-nevus-a-misleading-diagnosis-for-28-years
#5
Jorge Ocampo-Garza, Nilton Gioia Di Chiacchio, Eckart Haneke, Nilton Di Chiacchio, Leandro Fonseca Noriega
Epidermal nevi (EN) are hamartomas of the skin that result from mosaic post-zygotic mutations. There are several variants of EN, the verrucous epidermal nevus (VEN) being the most common. EN can be further subdivided into epidermolytic and nonepidermolytic, important since in contrast with nonepidermolytic EN, epidermolytic EN occurs sporadically (not heritable), and it is not associated with extracutaneous abnormalities. This article is protected by copyright. All rights reserved.
September 19, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28913303/simultaneous-development-of-three-different-neoplasms-of-trichilemmoma-desmoplastic-trichilemmoma-and-basal-cell-carcinoma-arising-from-nevus-sebaceus
#6
Chi An Lee, Seok Joo Kang, Seong Pin Jeon, Hook Sun, Mi Seon Kang
Nevus sebaceus is a hamartoma of the sebaceous gland that occurs congenitally, from which various secondary tumors can arise with a prevalence of 5%-6%. Benign neoplasms commonly arise from nevus sebaceous, but they have a very low malignant potential. Two neoplasms may occasionally arise within the same lesion, but it is rare for three or more neoplasms to occur in a nevus sebaceus simultaneously. A 61-year-old male patient was admitted to our hospital for a 4 cm×2.5 cm growing tumor in a verrucous form arising within a periauricular nevus sebaceus in the post auricle of the left ear that had developed 30 years earlier...
March 2017: Arch Craniofac Surg
https://www.readbyqxmd.com/read/28913302/eccrine-poroma-of-the-postauricular-area
#7
Hyun Rok Lee, Gyu Yong Jung, Hea Kyeong Shin, Dong Lark Lee, Jong Im Lee, Jung Hwan Kim
Eccrine poroma is a common benign cutaneous tumor that originates in an intraepidermal eccrine duct. This tumor exhibits acral distribution (sole, palm), and is rarely encountered in the head and neck area. In fact eccrine poroma in the postauricular area has only been rarely reported. A 55-year-old female visited our hospital with a main complaint of a mass that first developed in the left postauricular area about a year previously. The mass was painless, soft, protruding, domed, and dark red in color, and had slowly enlarged (at presentation it measured 1×1 cm)...
March 2017: Arch Craniofac Surg
https://www.readbyqxmd.com/read/28912992/giant-conjunctival-nevus-in-a-12-year-old-child
#8
Edit Tóth-Molnár, Eszter Vizvári, Ákos Skribek, András Vörös
We describe a case of a giant conjunctival nevus presented in a 12-year-old girl with suspicious clinicomorphological appearance. The lesion was noticed by the parents at the age of 3 years as a "fleshy spot" on the bulbar conjunctiva. The lesion remained unchanged until approx. 6 months before recent admission. On slit-lamp examination, a large conjunctival lesion with variegate pigmentation and indistinct margins was detected on the superonasal part of the bulbar conjunctiva of the left eye. Intralesional cysts and vessels were detected with AS-OCT examination...
2017: Case Reports in Ophthalmological Medicine
https://www.readbyqxmd.com/read/28906098/anemic-nevus-is-a-new-diagnostic-criterion-for-neurofibromatosis-type-1
#9
Gianluca Tadini, Michela Brena
No abstract text is available yet for this article.
October 2017: Giornale Italiano di Dermatologia e Venereologia: Organo Ufficiale, Società Italiana di Dermatologia e Sifilografia
https://www.readbyqxmd.com/read/28906096/becker-s-nevus-in-neurofibromatosis-type-1-a-single-center-experience-in-italy
#10
Emanuele Miraglia, Chiara Iacovino, Stefano Calvieri, Sandra Giustini
No abstract text is available yet for this article.
October 2017: Giornale Italiano di Dermatologia e Venereologia: Organo Ufficiale, Società Italiana di Dermatologia e Sifilografia
https://www.readbyqxmd.com/read/28905116/-teledermoscopy-by-mobile-phones-reliable-help-in-the-diagnosis-of-skin-lesions
#11
A Zink, A Kolbinger, M Leibl, I Léon Suarez, J Gloning, C Merkel, J Winkler, T Biedermann, J Ring, B Eberlein
BACKGROUND: Teledermoscopy is a promising modern technique to complement or to substitute dermatologic examination. OBJECTIVE: In this pilot study, we compared the outcomes of teledermoscopic consultations with clinical examinations and histologic results. METHODS: Conventional and dermatoscopic photos of single lesions were taken in 26 patients using a mobile phone and an attached handyscope optical system. Five resident physicians performed a clinical examination including dermoscopy while the teledermatologic and teledermoscopic photos were assessed by an experienced dermatologist...
September 13, 2017: Der Hautarzt; Zeitschrift Für Dermatologie, Venerologie, und Verwandte Gebiete
https://www.readbyqxmd.com/read/28904588/a-case-of-epilepsia-partialis-continua-due-to-linear-nevus-syndrome-with-hemimegalencephaly
#12
Leema Pauline Cornelius, Vivekasaravanan Raju, Ravi A Lalapet
Epilepsia partialis continua (EPC) is a form of focal status epilepticus often refractory to anticonvulsant therapy. A wide range of abnormalities such as inflammatory, vascular, metabolic-toxic, developmental malformations, and neoplasia cause EPC. Linear nevus syndrome with hemimegalencephaly is one of the developmental malformations that can present with EPC.
April 2017: Journal of Pediatric Neurosciences
https://www.readbyqxmd.com/read/28892945/pigmented-trichoblastoma-of-nose-an-unusual-occurrence
#13
D C Sathyaki, Mohammed Riyas, Mereen Susan Roy, R Jyothi Swarup, Nibha Raghu
Nevus sebaceus of Jadassohn is a congenital tumour affecting the scalp and face. It is usually presented as a pigmented patch or plaque. It is a complex cutaneous hamartoma which involves pilosebaceous follicle, epidermis and adnexal structures. Tumours that arise from nevus sebaceous are basal cell carcinoma, syringocystadenoma papilliferum, trichoblastoma and hidradenoma. The progression and frequency of the tumour increase with the age. Here we present a case of pigmented trichoblastoma over the external nose...
July 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28891492/porokeratotic-eccrine-ostial-and-dermal-duct-nevus
#14
Amina Aounallah, Najet Ghariani, Marouène Bel Kahla
No abstract text is available yet for this article.
August 15, 2017: Indian Pediatrics
https://www.readbyqxmd.com/read/28886810/assessing-genetic-expression-profiles-in-melanoma-diagnosis
#15
REVIEW
Sancy A Leachman, Stephanie Mengden Koon, Veselina B Korcheva, Kevin P White
Most melanocytic tumors can be characterized as a benign nevus or a melanoma by a trained pathologist using traditional histopathological methods. However, a minority demonstrates ambiguous features and continues to be a diagnostic challenge. Genetic expression profiling (GEP) assays have been developed in an effort to resolve this dilemma. These assays measure mRNA levels of specified genes using reverse transcription quantitative polymerase chain reaction technology. The development of GEP assays, methodology, challenges associated with GEP validation and testing, and the suitability of a currently available GEP test for clinical use are reviewed...
October 2017: Dermatologic Clinics
https://www.readbyqxmd.com/read/28886807/proteomic-mass-spectrometry-imaging-for-skin-cancer-diagnosis
#16
REVIEW
Rossitza Lazova, Erin H Seeley
Mass spectrometry imaging can be successfully used for skin cancer diagnosis, particularly for the diagnosis of challenging melanocytic lesions. This method analyzes proteins within benign and malignant melanocytic tumor cells and, based on their differences, which constitute a unique molecular signature of 5 to 20 proteins, can render a diagnosis of benign nevus versus malignant melanoma. Mass spectrometry imaging may assist in the differentiation between metastases and nevi as well as between proliferative nodules in nevi and melanoma arising in a nevus...
October 2017: Dermatologic Clinics
https://www.readbyqxmd.com/read/28880143/-an-infant-with-a-nevus-on-the-upper-leg
#17
M E Weijns, M Houtappel
We present a 4-month-old infant with an eczematous halo around a congenital melanocytic nevus. After diagnostic excision, histopathologic examination revealed a Meyerson's nevus. This is a benign skin tumour that may show clinical signs of melanoma. It is therefore important to include Meyerson's nevus in the differential diagnosis of melanoma.
2017: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/28878914/a-novel-keratin-13-variant-in-a-four-generation-family-with-white-sponge-nevus
#18
Stephanie B de Haseth, Egbert Bakker, Maarten H Vermeer, Hakima El Idrissi, Tjalling Bosse, Vincent T H B M Smit, Anna Terron-Kwiatkowski, W H Irwin McLean, Alexander A W Peters, Frederik J Hes
We report a novel KRT13 germ line variant that causes white sponge nevus (WSN) with mucosal dysplasia. Genital, vaginal, and cervical WSN were observed in four female patients, of whom two had premalignant cervical lesions at young age. Two of the 12 patients with oral WSN developed oral squamous cell carcinoma.
September 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28877249/silencing-of-interferon-regulatory-factor-gene-6-in-melanoma
#19
Yoshimasa Nobeyama, Hidemi Nakagawa
BACKGROUND: Methylation of a CpG island (CGI; a dense cluster of CpGs) located in the 5' region of a gene suppresses transcription of that gene. Interferon regulatory factor 6 (IRF6) is associated with the expression of interferon, which is used as an effective adjuvant therapy for melanoma, and is regarded as a tumor suppressor. However, little is known about the methylation status of the IRF6 gene in melanoma. OBJECTIVE: The purpose was to determine the methylation status of the CGI located in the 5' region of IRF6 (5' IRF6 CGI) in melanoma...
2017: PloS One
https://www.readbyqxmd.com/read/28868286/clinical-and-spectral-domain-optical-coherence-tomography-appearance-of-optic-disc-melanocytoma-a-new-classification-and-differentiation-from-pigmented-choroidal-lesions
#20
Supanut Apinyawasisuk, Tara McCannel, Anthony C Arnold
AIMS: The aim of this paper was to compare the features of both the classic, darkly pigmented and the atypical, more lightly pigmented optic disc melanocytoma with those of pigmented choroidal lesions. METHODS: We analyzed the spectral-domain optical coherence tomography (SD-OCT) features of 9 eyes with optic disc melanocytoma and compared them with those of choroidal melanoma and nevus. RESULTS AND CONCLUSION: We identified 2 categories of SD-OCT findings in optic disc melanocytoma: (a) type 1, the typical, prominent, hyperpigmented lesion with SD-OCT findings of a hyperreflective, disorganized overlying retina and a posterior hyporeflective shadow, and (b) the less common, atypical, minimally pigmented type 2 lesion overlaid by a relatively well-organized retina that lacks a posterior hyporeflective shadow...
July 2017: Ocular Oncology and Pathology
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