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Congenital nevus

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https://www.readbyqxmd.com/read/28329507/giant-benign-intradermal-melanocytic-nevus-of-rapid-onset
#1
Sarah J Coates, Andrew Avarbock, Garrett T Desman
Benign melanocytic nevi are slowly growing acquiredor congenital tumors with varied morphology,commonly encountered in dermatology clinics. Anytumor with rapid clinical growth must be assessedcarefully in order to exclude malignancy. We report awoman with a histopathologically benign intradermalnevus that presented as a rapidly evolving largecutaneous mass on the ear. Owing to the discrepancybetween the clinical and histopathological findings,an extensive histopathological work-up involvingmany deeper sections, immunohistochemical stains,and fluorescent in situ hybridization (FISH) analysiswas conducted in order to rule out malignancy...
February 15, 2017: Dermatology Online Journal
https://www.readbyqxmd.com/read/28319285/color-doppler-ultrasound-early-diagnoses-simulator-of-proliferative-nodule-in-congenital-melanocytic-nevus
#2
P Giavedoni, L Aranibar, X Wortsman
Congenital melanocytic nevus (CMN) is a benign proliferation of cutaneous melanocytes that arises as the result of abnormal growth, development, or migration of melanoblasts (1) . They are clinically evident at birth and usually produce a high degree of stress among physicians and parents due to the risk of malignant transformation. In spite that the actual lifetime risk of developing melanoma from a small or medium-sized CMN is unknown, and some reports estimate this risk to be less than 5%, any recent-onset palpable nodule in a CMN may be worrisome...
March 20, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28302248/ocular-features-in-a-case-of-nevus-of-ota
#3
Murtaza Sameen Junejo, Muhammad Saim Khan, Ahsan Mukhtar
Oculodermal melanocytosis, also known as Nevus of Ota, is a hamartomatous melanocytic nevus of dermal melanocytes. It presents as a bluish grey patch on the face, which may be congenital or acquired involving the area of distribution of the ophthalmic and maxillary branches of the trigeminal nerve. The nevus can be unilateral or bilateral, and, in addition to skin, it may involve ocular and oral mucosal surfaces. It is a rare disorder and the ocular complications, such as glaucoma and melanoma, may be vision or life-threatening...
March 2017: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/28300889/elastoma-clinical-and-histopathological-aspects-of-a-rare-disease
#4
Marina Gagheggi Maciel, Milvia Maria Simões E Silva Enokihara, Maria Bandeira de Melo Paiva Seize, Aline Pantano Marcassi, Christiane Affonso De Donato Piazza, Silmara da Costa Pereira Cestari
Elastoma is a connective tissue nevus characterized by changes in elastic fibers. It can be congenital or acquired, and is usually diagnosed before puberty. Associated with osteopoikilosis, it is known as Buschke-Ollendorff syndrome. Histopathology with specific staining for elastic fibers is critical for a diagnostic conclusion. This report describes the case of a 7-year-old male patient with lesions diagnosed as elastoma, with absence of bone changes in the radiological imaging. This study aims to report the clinical presentation and histological examination of such unusual disease...
September 2016: Anais Brasileiros de Dermatologia
https://www.readbyqxmd.com/read/28296519/congenital-melanocytic-nevus-on-the-lower-eyelid-treated-with-continuous-wave-and-superpulsed-co2-laser-followed-by-erbium-laser
#5
Vito Abrusci, Valentina Benzecry
There are several therapeutic options to treat congenital melanocytic nevi. The motivations for the treatment of small- to medium-sized congenital nevi located on the face or other sensitive areas are frequently cosmetic. The choice of therapy depends on the operator's expertise and on the likelihood of improved cosmesis. We report a case of a medium-sized congenital nevi located on the lower eyelid, successfully treated with a combination of ablative lasers with a single surgical procedure. We achieved an excellent clinical and cosmetic result...
February 17, 2017: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/28254210/giant-congenital-melanocytic-nevus-presenting-as-a-huge-vulvar-mass-a-rare-case
#6
Manu Goyal, Alka Kriplani, Reeta Mahey, Garima Kachhawa, Rajni Yadav, Geetika Singh
No abstract text is available yet for this article.
February 2017: Taiwanese Journal of Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28248717/mass-spectrometry-imaging-can-distinguish-on-a-proteomic-level-between-proliferative-nodules-within-a-benign-congenital-nevus-and-malignant-melanoma
#7
Rossitza Lazova, Zhe Yang, Constantin El Habr, Young Lim, Keith Adam Choate, Erin H Seeley, Richard M Caprioli, Li Yangqun
Histopathological interpretation of proliferative nodules occurring in association with congenital melanocytic nevi can be very challenging due to their similarities with congenital malignant melanoma and malignant melanoma arising in association with congenital nevi. We hereby report a diagnostically challenging case of congenital melanocytic nevus with proliferative nodules and ulcerations, which was originally misdiagnosed as congenital malignant melanoma. Subsequent histopathological examination in consultation by one of the authors (R...
February 20, 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28239913/-sky-full-of-stars-pattern-dermoscopic-findings-in-a-desmoplastic-giant-congenital-melanocytic-nevus
#8
Pablo Martín-Carrasco, José Bernabeu-Wittel, Javier Dominguez-Cruz, Teresa Zulueta Dorado, Julian Conejo-Mir Sanchez
Desmoplastic giant congenital melanocytic nevus (DGCN) is an uncommon variant of congenital nevus, presenting as a progressive induration and hypopigmentation of the lesion that occasionally causes hair loss and even total or partial disappearance of the nevus. A 6-month-old girl with a giant congenital melanocytic nevus that involved the entire posterior side of the right thigh was seen in our department. Nine months later, the peripheral area of the nevus presented as a marked induration with hypopigmentation...
February 27, 2017: Pediatric Dermatology
https://www.readbyqxmd.com/read/28223745/intense-pulsed-light-alone-and-in-combination-with-erbium-yttrium-aluminum-garnet-laser-on-small-to-medium-sized-congenital-melanocytic-nevi-single-center-experience-based-on-retrospective-chart-review
#9
Mi So Lee, Hee Jin Jun, Sang Hyun Cho, Jeong Deuk Lee, Hei Sung Kim
BACKGROUND: Treatment of congenital melanocytic nevi (CMN) with intense pulsed light (IPL) has recently produced promising results. OBJECTIVE: To evaluate the clinical and histological outcomes of small-to-medium sized CMN treated with IPL alone and in combination with erbium: yttrium-aluminum-garnet (Er: YAG) laser. METHODS: We performed a retrospective chart review of 26 small-to-medium sized CMN treated as described above. The reduction in visible pigmentation, signs of recurrence and any adverse skin changes were evaluated by two independent clinicians...
February 2017: Annals of Dermatology
https://www.readbyqxmd.com/read/28223743/dermoscopic-features-of-small-medium-and-large-sized-congenital-melanocytic-nevi
#10
Fatma Pelin Cengiz, Nazan Emiroglu, Dilek Biyik Ozkaya, Ozlem Su, Nahide Onsun
BACKGROUND: Congenital melanocytic nevi (CMN) are present at birth. It is well known that the presence of large-sized congenital nevus in early life could predict a major risk of developing melanoma. OBJECTIVE: To investigate the clinical and dermoscopic features of the CMN, to search for and highlight any differences between small-sized, medium-sized, large-sized CMN. METHODS: A nonrandomized observational study was performed. A total of 108 melanocytic nevi were analysed by clinical and dermoscopic examination...
February 2017: Annals of Dermatology
https://www.readbyqxmd.com/read/28110826/congenital-melanocytic-nevus-syndrome-a-case-series
#11
A Recio, A I Sánchez-Moya, V Félix, Y Campos
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. Until a few years ago, surgery was the treatment of choice, but the results have proved unsatisfactory because aggressive interventions do not improve cosmetic appearance and only minimally reduce the risk of malignant change...
January 19, 2017: Actas Dermo-sifiliográficas
https://www.readbyqxmd.com/read/28102445/-congenital-nevus-atypical-spitz-nevus-or-spitzoid-melanoma
#12
A Blum, M Tanaka, K S Kraemer-Schultheiss, J Bauer
No abstract text is available yet for this article.
January 19, 2017: Der Hautarzt; Zeitschrift Für Dermatologie, Venerologie, und Verwandte Gebiete
https://www.readbyqxmd.com/read/28064423/pathophysiology-diagnosis-and-management-of-glaucoma-associated-with-sturge-weber-syndrome
#13
REVIEW
Usman Javaid, Muhammad Hassaan Ali, Samreen Jamal, Nadeem Hafeez Butt
PURPOSE: Sturge-Weber syndrome (SWS), also known as encephalotrigeminal angiomatosis, is a condition which includes leptomeningeal hemangioma, facial angiomatosis or nevus flammeus, and ocular changes. SWS can lead to severe complications of anterior segment involving conjunctiva and eyelids, whereas posterior segment of the eye may also be affected by diffuse choroidal hemorrhages. This article was written with the objectives to determine the pathophysiology, diagnosis, and treatment of glaucoma associated with this rare and challenging disorder...
January 7, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28045755/nevus-spilus-speckled-lentiginous-nevus-in-the-oral-cavity-report-of-a-case-and-review-of-the-literature
#14
REVIEW
Karen G Torres, Laura Carle, Michael Royer
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. A nevus spilus (speckled lentiginous nevus) is a clinical variant of congenital melanocytic nevus. The authors present the case of a 19-year-old male with an intraoral nevus spilus. The anterior mandibular gingiva exhibited multiple speckled, pigmented papules and macules on a thickened, hyperplastic macular background...
January 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28033154/malignant-melanoma-in-association-with-a-thymic-nevus-in-a-patient-with-a-giant-congenital-nevus
#15
Yulia Shvartser-Beryozkin, Alexander Yakobson, Daniel Benharroch, Milton Saute, Meora Feinmesser
Nevi and melanocytic proliferations are known to appear in multiple extracutaneous sites, including lymph nodes and meninges. We report a case of an anterior mediastinal mass in a patient with a giant congenital nevus and neurofibromatosis type I. Histologically, the tumor was found to be a malignant melanoma in the thymus arising in association with a nevus that involved most of the thymic tissue. There was no sign of cutaneous melanoma on skin examination. We suggest that the tumor originated from the benign nevus in the thymus, a rare extracutaneous location for nevi and malignant melanoma...
December 28, 2016: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/27987336/frequency-of-malformed-infants-in-a-tertiary-center-in-hokkaido-japan-over-a-period-of-10-years
#16
Itaru Hayasaka, Kazutoshi Cho, Yutaka Uzuki, Keita Morioka, Takuma Akimoto, Satoshi Ishikawa, Kohta Takei, Takahiro Yamada, Mamoru Morikawa, Takashi Yamada, Tadashi Ariga, Hisanori Minakami
AIM: This retrospective study was performed to determine the frequency of malformed infants born at a tertiary center in Hokkaido, Japan. The accuracy of prenatal diagnosis rates was also investigated. METHODS: An observational study was performed using data of 1509 and 1743 newborn infants at a single center during two study periods, 2005-2009 (first) and 2010-2014 (second), respectively. Cases including minor anomalies (accessory auricle, nevus and fistula auris congenita) were not included...
December 17, 2016: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/27984627/-advance-in-research-on-congenital-hemidysplasia-with-ichthyosiform-nevus-and-limb-defects-syndrome
#17
Feng Jing, Dan Yang, Tao Chen, Lipin Liang
Congenital hemidysplasia with ichthyosiform nevus and limb defects (CHILD) syndrome is a rare X-linked dominant and male-lethal multi-system disorder characterized by congenital hemidysplasia, strictly lateralized ichthyosiform nevus and ipsilateral limb defects. CHILD syndrome is caused by mutations of nicotinamide adenine dinucleotide phosphate steroid dehydrogenase-like protein (NSDHL) gene mapped to chromosome Xq28. The gene encodes 3β-hydroxylsterol dehydrogenase, which catalyses a step in the cholesterol biosynthetic pathway...
December 10, 2016: Zhonghua Yi Xue Yi Chuan Xue za Zhi, Zhonghua Yixue Yichuanxue Zazhi, Chinese Journal of Medical Genetics
https://www.readbyqxmd.com/read/27916254/pigmented-oral-compound-nevus-of-retromolar-area-a-rare-case-report
#18
Virender Gombra, Mandeep Kaur, Keya Sircar, Deepika Bablani Popli
Solitary pigmented melanocytic intraoral lesions of the oral cavity are rare. Oral nevus is a congenital or acquired benign neoplasm. Oral compound nevus constitutes 5.9%-16.5% of all oral melanocytic nevi. The oral compound nevus is commonly seen on hard palate and buccal mucosa and rarely on other intraoral sites. The objective of this article is to present a rare case report of oral compound nevus in the retromolar pad region along with a review of literature. A 22 year old female reported with a solitary black pigmented papule at retromolar pad region which was surgically removed and microscopic investigation confirmed the diagnosis of oral compound nevus...
December 2016: Singapore Dental Journal
https://www.readbyqxmd.com/read/27857802/giant-melanocytic-nevi-with-neurocutaneous-melanosis-masquerading-as-neurofibromas
#19
Vykuntaraju K Gowda, Anita Basude, Sahana M Srinivas, Maya Bhat
Neurocutaneous melanosis is congenital melanocytic nevus with neurological manifestations. We report a 4-year-old female child presenting with hyperpigmented and nodular skin lesion associated with developmental delay and convulsions. The child had multiple brownish-black nevi on the face and chest and giant melanocytic nevi on thoraco-abdomen, back, and gluteal region. Computed tomography scan of the brain showed calcification in the pons, right cerebellar hemisphere, and left medial temporal lobe. Skin biopsy done from nodular hyperpigmented site was suggestive of melanocytic nevi...
July 2016: Journal of Pediatric Neurosciences
https://www.readbyqxmd.com/read/27849631/reduced-h3k27me3-expression-is-common-in-nodular-melanomas-of-childhood-associated-with-congenital-melanocytic-nevi-but-not-in-proliferative-nodules
#20
Klaus J Busam, Kara N Shah, Pedram Gerami, Thomas Sitzman, Achim A Jungbluth, Veronica Kinsler
The formation of a nodule within a congenital melanocytic nevus (CMN) raises concerns about possible melanoma. Most new nodular growths that develop during childhood, however, are benign proliferative nodules (PN); melanoma is very rare. The distinction of melanoma from PN can at times be difficult clinically and histopathologically, requiring ancillary molecular tests for diagnosis. Although the application of molecular methods has revealed new insights into the mutational and genomic landscape of childhood melanomas, little is known about epigenetic events that may drive the growth of a melanoma or PN in a CMN...
March 2017: American Journal of Surgical Pathology
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