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Congenital nevus

Y Zhao, H Zhao, J Y Lin, Y Pan, W J Zhai, Y C Wang
Objective: To analyze the clinical features and pathological classification of chlidren's ocular tumors. Methods: Retrospective case series study. Five hundred and four cases (506 eyes) of ocular tumor with biopsy-proven in children below 14 years old between January 2002 and December 2014 from Tianjin Eye Hospital were performed to retrospectively investigated the lesion location, clinical features and histopathologic classification of these lesions. Results: Of 504 cases there were 246 boys (248 eyes) and 258 girls (258 eyes) patients...
October 11, 2016: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
Yair Shachar, Allan Billig, Katya Chapchay, Jhonatan Elia, Neta Adler, Alexander Margulis
BACKGROUND: Large congenital melanocytic nevi entail significant medical and cosmetic ramifications for patients and families. Reconstruction is a challenging endeavor, especially when the lesion is present on the limbs. The literature describes various methods by which a plastic surgeon can address reconstruction; yet, to date, there has been no series describing a method that provides consistent results with low complication rates. In this study, we describe our surgical technique for reconstruction of the upper extremity after excision of large circumferential CNM with a pre-expanded bi-pedicled flap, namely the "sleeve" flap...
October 5, 2016: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
A Durazzo, O Boccara, S Fraitag, T Fusade, A Picard, N Kadlub
INTRODUCTION: "Café au lait" spots (CLS) are pigmented skin lesions principally located at the trunk and the limbs. Histologically, CLSs consist in an excessive pigmentation of the epidermis, with no risk of malignant transformation. The "kissing" nevus is a rare pigmented congenital nevus affecting both lower and upper eyelids in a mirror layout. As other nevi, it presents a theoretical risk of malignant transformation. These two pigmented lesions are responsible for aesthetic discomfort when affecting the face...
October 4, 2016: Revue de Stomatologie, de Chirurgie Maxillo-faciale et de Chirurgie Orale
F Persechino, B De Pace, A M Cesinaro, G Pellacani, F Farnetani
A 26 year old male patient, phototype II, presented with a recently change aspect of an old lesion on the upper trunk. Clinically, the lesion appeared as a papule of 0.6 cm x 0.4 cm in diameter, with unevenly distributed bluish pigmentation, and irregular borders, defined as an ugly duckling. (Fig. 1). This article is protected by copyright. All rights reserved.
October 4, 2016: Journal of the European Academy of Dermatology and Venereology: JEADV
A Yasmine Kirkorian, Anna L Grossberg, Katherine B Püttgen
The fundamental genetics of many isolated vascular anomalies and syndromes associated with vascular anomalies have been elucidated. The rate of discovery continues to increase, expanding our understanding of the underlying interconnected molecular pathways. This review summarizes genetic and clinical information on the following diagnoses: capillary malformation, venous malformation, lymphatic malformation, arteriovenous malformation, PIK3CA-related overgrowth spectrum (PROS), Proteus syndrome, SOLAMEN syndrome, Sturge-Weber syndrome, phakomatosis pigmentovascularis, congenital hemangioma, verrucous venous malformation, cutaneomucosal venous malformation, blue rubber bleb nevus syndrome, capillary malformation-arteriovenous malformation syndrome, Parkes-Weber syndrome, and Maffucci syndrome...
September 2016: Seminars in Cutaneous Medicine and Surgery
Camila Sampaio Ribeiro, Sergio S Serpa, Maria Auxiliadora Jeunon Sousa, Thiago Jeunon
Melanomas can arise either de novo (70%) or from pre-existing melanocytic lesions (30%). Of the latter, most cases arise at the dermoepidermal junction from small congenital or acquired non-blue nevi while only a few arise from blue nevi, notably the cellular subtype and less commonly the common (dendritic) type. Melanomas that arise from blue nevi usually occur on the scalp with greater frequency, as in the case described. Although previous studies have discussed melanoma arising from giant congenital blue nevi, few have discussed those arising from intermediate blue nevi...
July 2016: Anais Brasileiros de Dermatologia
Leah Lalor, Klaus Busam, Kara Shah
We report the case of an 8-year-old child who developed a 9.4-mm-deep melanoma within a medium-sized congenital melanocytic nevus on the scalp. Genetic analysis revealed an activating NRAS Q61R mutation within the melanoma, which is more commonly associated with large or giant congenital melanocytic nevi. This case demonstrates that even a "low-risk" congenital melanocytic nevus at a "low-risk" age must be monitored regularly for the development of malignancy.
August 30, 2016: Pediatric Dermatology
Eric K W Wong, Muhammad N Mahmood, Thomas G Salopek
Congenital melanocytic nevi (CMNs) naturally evolve throughout life, growing proportionately with the child, darkening, and exhibiting textural or surface changes (e.g., papillomatous, verrucous, cerebriform), hypertrichosis, and, later in life, lightening of pigmentation. We report the case of a 5-year-old child with complete resolution of a medium-sized CMN involving the distal left leg and foot via sclerosis and in the absence of any halo phenomenon. Spontaneous regression of CMN via sclerosis is rare, and it is thought that an immunologic mechanism different from the mechanism that the halo phenomenon induces mediates this regression...
August 30, 2016: Pediatric Dermatology
Rebecca Levy, Irene Lara-Corrales
Common moles on the skin, known scientifically as melanocytic nevi, are seen frequently in the pediatric population. They are broadly grouped into two groups: congenital (generally present at birth or in infancy) or acquired. Congenital melanocytic nevi (CMN) are classified based on size and morphologic features. Neurocutaneous melanosis and melanoma represent two important complications, with overall risk affected by nevus size, location, appearance, and number of satellite lesions. Regular lifelong skin surveillance is required for high-risk CMN...
August 1, 2016: Pediatric Annals
Naoki Morimoto, Chizuru Jinno, Michiharu Sakamoto, Natsuko Kakudo, Tetsuji Yamaoka, Kenji Kusumoto
BACKGROUND: Giant congenital melanocytic nevi (GCMNs) are large brown to black skin lesions that appear at birth and are associated with a risk of malignant transformation. It is often difficult to reconstruct large full-thickness skin defects after the removal of GCMNs. OBJECTIVE: To overcome this difficulty we developed a novel treatment to inactivate nevus tissue and reconstruct the skin defect using the nevus tissue itself. For this research, we designed an exploratory clinical study to investigate the safety and efficacy of a novel treatment combining the engraftment of autologous nevus tissue inactivated by high hydrostatic pressurization with a cultured epidermal autograft (CEA)...
2016: JMIR Research Protocols
Hsiang-Yu Lin, Chih-Kuang Chuang, Ru-Yi Tu, Yi-Ya Fang, Yi-Ning Su, Chih-Ping Chen, Chia-Ying Chang, Hsi-Che Liu, Tzu-Hung Chu, Dau-Ming Niu, Shuan-Pei Lin
BACKGROUND: Beckwith-Wiedemann syndrome (BWS) is a congenital overgrowth disorder predisposing to tumorigenesis that results from abnormal expression or function of imprinted genes of chromosome 11p15.5. METHODS: Forty-seven patients in Taiwan with clinical suspicion of BWS were referred for diagnostic testing based on methylation profiling of H19-associated imprinting center (IC) 1 and KCNQ1OT1-associated IC2 using high-resolution melting analysis, multiplex ligation-dependent probe amplification, or high-resolution quantitative methylation profiling...
September 2016: Molecular Genetics and Metabolism
V Duquennoy-Martinot, C Depoortère, C Deveaux, A Capon, O Abdelwahab, C François, P Guerreschi
The expansion of soft tissue, especially skin, is an old and physiological process to increase the skin reserve allowing excision while coveraging of the resulting loss of substance. Easy in principle, this process is subjected to constraints in children requiring precise planning and rigorous technical procedure. Between 1990 and 2016, we performed 293 expansion protocols with 411 implants in 244 children. The scalp was the most interested area (158 cases), followed by the trunk (29). The congenital nevi represented the most frequent indication (119 cases), followed by sequelae of burns and scars (64 cases) and hamartoma sebaceous of Jadassohn (27 cases)...
July 13, 2016: Annales de Chirurgie Plastique et Esthétique
Monika Bekiesińska-Figatowska, Ewa Sawicka, Klaudia Żak, Orest Szczygielski
BACKGROUND: Patients with giant congenital melanocytic nevi (GCMN) have increased risk of neurocutaneous melanosis (NCM). Brain MRI is mandatory in GCMN. OBJECTIVES: To present the age related changes in brain MRI in children with NCM during several-year follow-up. METHODS: In 7 NCM children following data were analyzed: main nevus localization, surgical treatment phase, histology of excised nevi, time of NCM diagnosis, number of MRI studies, neurological symptoms, changes of melanin deposits in brain during follow-up...
August 2016: European Journal of Radiology
A A Chokoeva, M Fioranelli, M G Roccia, T Lotti, U Wollina, G Tchernev
Giant congenital melanocytic nevus (GCMN) is a rare disorder affecting 1 in 200,000–500,000 live births. Central nervous system defects such as spina bifida, meningocele, Dandy Walker malformation may accompany it and thus cause significant morbidity. Despite the related risk for malignant transformation, GCMNs may be associated with neurocutaneous melanosis, a rare syndrome in which a giant CMN or multiple smaller CMNs are accompanied by melanocytic deposition in the brain and the spinal cord. We present a case of a 5-day-old newborn with giant congenital melanocytic nevus on his back, as we discuss the diagnostic and treatment approach...
April 2016: Journal of Biological Regulators and Homeostatic Agents
A Goldman, U Wollina, G Tchernev, A A Chokoeva, T Lotti
Congenital melanocytic nevi can be stigmatising for the patient. Larger nevi bear an increased risk for melanoma development. Large congenital melanocytic nevi may be a symptom of neurocutaneous melanosis. We report on a 5-year-old boy with an extensive hair-bearing facial congenital melanocytic nevus, covering forehead, glabella and temple region associated with unilateral brow and blepharoptosis. The lesion was excised en bloc. The resulting defect had been closed by full thickness skin graft. Healing was unremarkable and long-term follow-up over 13 years demonstrated a satisfying esthetic and functional outcome...
April 2016: Journal of Biological Regulators and Homeostatic Agents
Shinya Kitamura, Hiroo Hata, Keisuke Imafuku, Hiroshi Shimizu
Nevus sebaceus (NS) is a common congenital birthmark, and various tumors have been reported to develop in NS. Basal cell carcinoma (BCC) seldom occurs in NS, and it is very important to be able to clinicopathologically distinguish BCC from trichoblastoma. Herein, we describe a case of BCC and trichoblastoma occurring simultaneously in the same NS, including the differential dermoscopic features. BCC is clinically difficult to distinguish from trichoblastoma because the clinical manifestations are similar. In a dermoscopic examination of BCC, arborizing vessels are one of the diagnostically significant features...
January 2016: Case Reports in Oncology
Maressa C Criscito, Lilia M Correa, Vadim P Koshenkov, Bahar F Firoz
No abstract text is available yet for this article.
September 2016: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
Natnicha Girdwichai, Kumutnart Chanprapaph, Vasanop Vachiramon
Nevus sebaceous is a congenital, benign hamartomatous lesion, characterized by a yellowish to skin-colored, hairless, verrucous plaque on the head and neck region. In later life, a secondary tumor, either benign or malignant, can develop within nevus sebaceous. Eccrine poroma developing on nevus sebaceous is extremely rare. There are few case reports of eccrine poroma developing within nevus sebaceous. We report a case of a 30-year-old female who presented with a congenital, hairless, verrucous, yellowish lesion on the scalp and an erythematous nodule arising within the yellowish lesion for 8 months...
January 2016: Case Reports in Dermatology
Adam Borzecki, Beata Strus-Rosińska, Magdalena Raszewska-Famielec, Agnieszka Sajdak-Wojtaluk, Pawel Pilat
Linear epidermal nevus is a congenital malformation characterized by linear, often one-sided arrangement. The lesions are localized along the Blaschko's lines, are present at birth, or appear in early childhood. They can be single or multiple, and have various colors-from skin color to dark brown. These lesions persist through the whole life making a significant cosmetic defect. Here, we present three clinical cases of epidermal nevus treated with CO2 laser. In a female patient, verrucous, dark brown skin eruptions were observed at the back of earlobe and down the neck...
October 2016: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
Poojan Agarwal, Kaniyyapan Nambiyar, Manju Kaushal, Minakshi Bhardwaj
Malignant melanoma is one of the most aggressive and treatment resistant skin cancers. India enjoys a low incidence of melanoma, and age specific incidence rates for cutaneous malignant melanoma (CMM) are being less than 0.5 per 1,000,000. This could be due to under-reporting of melanoma on account of a low index of suspicion by clinicians and pathologists alike. Most common site for origin of primary melanoma is skin, accounting for about 91.2% of all reported primary malignant melanoma cases. Other primary sites are relatively uncommon...
July 2016: Diagnostic Cytopathology
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