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Basal cell nevus syndrome

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https://www.readbyqxmd.com/read/29681387/illuminating-alternative-strategies-to-treat-targeted-chemotherapy-resistant-sporadic-basal-cell-carcinoma
#1
Tuyen T L Nguyen, Scott X Atwood
Sporadic and basal cell nevus syndrome basal cell carcinomas show differential response rates to Smoothened inhibitors. Chiang et al. demonstrate notable decreases in UV-induced mutagenesis, total mutation load, genomic instability, and drug-resistant mutations among basal cell nevus syndrome basal cell carcinomas using whole exome sequencing, which may explain the differences in drug response rates.
May 2018: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/29607000/basaloid-follicular-hamartoma-a-case-report-and-a-novel-cosmetic-treatment
#2
Kelly Segars, Hassie Cooper, Daniel J Hogan, Richard Miller, Michael Heaphy, James Spencer
Introduction: Basaloid follicular hamartoma (BFH) is a rare, benign neoplasm of the hair follicle, characterized by multiple brown papules involving the face, scalp, and trunk. It is described by multiple clinical forms, and can present as localized or generalized. Diagnosis is made histologically via biopsy, which is important in order to distinguish BFH from basal cell carcinoma (BCC) or other malignant epithelial neoplasms. Correct diagnosis allows for the avoidance of unnecessary surgeries to remove benign lesions...
March 2018: Journal of Clinical and Aesthetic Dermatology
https://www.readbyqxmd.com/read/29575684/new-mutations-and-an-updated-database-for-the-patched-1-ptch1-gene
#3
Marie G Reinders, Antonius F van Hout, Betûl Cosgun, Aimée D Paulussen, Edward M Leter, Peter M Steijlen, Klara Mosterd, Michel van Geel, Johan J Gille
BACKGROUND: Basal cell nevus syndrome (BCNS) is an autosomal dominant disorder characterized by multiple basal cell carcinomas (BCCs), maxillary keratocysts, and cerebral calcifications. BCNS most commonly is caused by a germline mutation in the patched-1 (PTCH1) gene. PTCH1 mutations are also described in patients with holoprosencephaly. METHODS: We have established a locus-specific database for the PTCH1 gene using the Leiden Open Variation Database (LOVD). We included 117 new PTCH1 variations, in addition to 331 previously published unique PTCH1 mutations...
March 25, 2018: Molecular Genetics & Genomic Medicine
https://www.readbyqxmd.com/read/29550418/sox9-transcriptionally-regulates-mtor-induced-proliferation-of-basal-cell-carcinomas
#4
Arianna L Kim, Jung Ho Back, Sandeep C Chaudhary, Yucui Zhu, Mohammad Athar, David R Bickers
Currently available SMO targeted therapies in patients with basal cell nevus syndrome (BCNS) are associated with substantial tumor recurrence and clinical resistance. Strategies bypassing SMO and/or identifying additional downstream components of the Hedgehog (Hh) pathway could provide novel anti-tumor targets with a better therapeutic index. SOX9 is a Hh/GLI-regulated transcription factor known to be overexpressed in BCCs. A sequence motif search for SOX9-responsive elements identified three motifs in the promoter region of mTOR...
March 14, 2018: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/29488242/familial-papular-epidermal-nevus-with-skyline-basal-cell-layer-and-multiple-pilomatricomas-a-new-association
#5
Laura Rizzoli, Riccardo Balestri, Giulia Rech, Maria Grazia Zorzi, Luigi Speziali, Annalisa Pedrolli, Carlo Renè Girardelli
Papular epidermal nevus with "skyline" basal cell layer is a newly described keratinocytic nevus. Recently, papular epidermal nevus with "skyline" basal cell layer has been reported in association with extracutaneous involvement, and the term papular epidermal nevus with "skyline" basal cell layer syndrome is used to indicate a neurocutaneous syndrome characterized by the presence of papular epidermal nevus with "skyline" basal cell layer and different neurologic symptoms that seem to improve during infancy and adolescence...
May 2018: Pediatric Dermatology
https://www.readbyqxmd.com/read/29471147/blue-light-versus-red-light-for-photodynamic-therapy-of-basal-cell-carcinoma-in-patients-with-gorlin-syndrome-a-bilaterally-controlled-comparison-study
#6
Edward V Maytin, Urvashi Kaw, Muneeb Ilyas, Judith A Mack, Bo Hu
BACKGROUND: Photodynamic therapy (PDT) is a non-scarring alternative for treating basal cell carcinoma (BCC) in patients with Basal Cell Nevus Syndrome (BCNS), also known as Gorlin syndrome. In Europe, red light (635 nm) is the predominant source for PDT, whereas in the United States blue light (400 nm) is more widely available. The objective of this study was to conduct a head-to-head comparison of blue light and red light PDT in the same BCNS patients. METHODS: In a pilot study of three patients with 141 BCC lesions, 5-aminolevulinate (20% solution) was applied to all tumors...
February 19, 2018: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/29454489/basal-cell-nevus-syndrome-gorlin-syndrome-genetic-insights-diagnostic-challenges-and-unmet-milestones
#7
Maryam Akbari, Harold Chen, Grace Guo, Zachary Legan, Ghali Ghali
In this article, we present three clinical case reports on Basal Cell Nevus Syndrome (Gorlin Syndrome). Gorlin syndrome is an inherited medical condition with challenges that manifest in multiple body systems and complicate early diagnosis. We examine the epidemiology of the disease and benefits of genetic testing, molecular pathophysiology, and advancement in the molecular-based therapy of Basal Cell Nevus syndrome. The goal of this paper is to shed light on both unmet challenges and advancements in the management of Gorlin syndrome and to provide a new clinical perspective and guidance for future research...
January 31, 2018: Pathophysiology: the Official Journal of the International Society for Pathophysiology
https://www.readbyqxmd.com/read/29136303/chromosome-9-mutations-reported-absent-in-some-patients-with-basal-cell-carcinoma-nevus-syndrome
#8
S Shih, B A Urso, R Domozych, K M Updyke, A I Laughlin, J A Solomon
Basal Cell Carcinoma Nevus Syndrome (BCCNS), also known as Gorlin syndrome, is a rare autosomal dominant condition with a substantial disease burden, thought to occur secondary to chromosome 9 mutation evoking a Hedgehog (Hh) signaling aberration that leads to early development of numerous basal cell carcinomas (BCCs). Individuals with BCCNS also present with keratocystic odontogenic tumors, medulloblastomas, and palmar or plantar pits1. This condition demonstrates variable expressivity, leading to differing phenotypes, even within the same family2...
November 14, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/29120812/imaging-findings-in-systemic-childhood-diseases-presenting-with-dermatologic-manifestations
#9
REVIEW
Adam Z Fink, Julia K Gittler, Radhika N Nakrani, Jonathan Alis, Einat Blumfield, Terry L Levin
PURPOSE: Many childhood diseases often present with skin abnormalities with which radiologists are largely unfamiliar. Knowledge of associated dermatologic manifestations may aid the radiologist in confirming the diagnosis and recommending targeted imaging of affected organs. METHODS: We review the imaging findings in childhood diseases associated with dermatologic manifestations. FINDINGS: Diseases include dermatologic findings which herald underlying malignancy (Neuroblastoma, leukemia/lymphoma, Langerhans cell histiocytosis),are associated with risk of malignancy (Epidermolysis Bullosa, basal cell nevus syndrome, Cowden's syndrome, Tuberous Sclerosis),or indicate a systemic inflammatory/immune disorder (Kawasaki's disease, Henoch Schonlein Purpura, systemic lupus erythematosus, scleroderma, sarcoidosis, dermatomyositis and immune thrombocytopenic purpura)...
October 31, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/29111235/genomic-stability-in-syndromic-basal-cell-carcinoma
#10
Audris Chiang, Prajakta D Jaju, Prag Batra, Melika Rezaee, Ervin H Epstein, Jean Y Tang, Kavita Y Sarin
Basal cell cancers (BCCs) are characterized by upregulation of Hedgehog pathway through loss of PTCH1 or activation of SMO, and SMO inhibitors, such as vismodegib, are effective therapies for advanced BCCs. Although most BCCs are sporadic, rare individuals with basal cell nevus syndrome (BCNS) harbor germline defects in PTCH1 and develop up to hundreds of tumors that are histopathologically indistinguishable from sporadic BCCs. Interestingly, BCNS-BCCs are more responsive to SMO inhibitors than sporadic BCCs, with minimal development of resistance...
May 2018: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/29039452/molecular-analysis-of-keratocystic-odontogenic-tumor-cell-lines-derived-from-sporadic-and-basal-cell-nevus-syndrome-patients
#11
Kazuma Noguchi, Keiko Wakai, Tohru Kiyono, Mutsuki Kawabe, Kyohei Yoshikawa, Tomoko Hashimoto-Tamaoki, Hiromitsu Kishimoto, Yoshiro Nakano
Keratocystic odontogenic tumor (KCOT) is a benign tumor often associated with basal cell nevus syndrome (BCNS). Mutations in Patched 1 (PTCH1), the Hedgehog (Hh) receptor, are responsible for BCNS. BCNS is distinguished by morphological anomalies and predisposition to benign and malignant tumors, including medulloblastoma, basal cell carcinoma, KCOT and ovarian fibromas. Among these tumors, KCOT is the least well studied because a suitable model system is not available for its investigation. To enable KCOT to be studied, we established two KCOT cell lines, one from a BCNS case (designated as iKCOT1) and one from a sporadic KCOT case (designated as sKCOT1)...
October 9, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28951717/basal-cell-nevus-syndrome-gorlin-goltz-syndrome-genetic-predisposition-clinical-picture-and-treatment
#12
Henryk Witmanowski, Paweł Szychta, Katarzyna Błochowiak, Arkadiusz Jundziłł, Rafał Czajkowski
No abstract text is available yet for this article.
August 2017: Postȩpy Dermatologii i Alergologii
https://www.readbyqxmd.com/read/28937433/a-case-of-phacomatosis-pigmentokeratotica-associated-with-multiple-basal-cell-carcinomas
#13
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...
February 2018: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28686751/muckle-wells-syndrome-in-the-setting-of-basal-cell-nevus-syndrome
#14
Marie Wagener, Joseph W Laskas, Stephen Purcell, Tanya Ermolovich
Muckle-Wells syndrome (MWS) is a rare disorder inherited in an autosomal-dominant fashion that belongs to a group of hereditary periodic fever syndromes. It specifically belongs to the cryopyrin-associated periodic syndromes (CAPSs) in which there is a mutation in the NLRP3 (NLR family pyrin domain containing 3) gene that leads to overproduction of IL-1β, the source of the multisystem inflammatory symptoms. Muckle-Wells syndrome is characterized by a recurrent urticarial eruption that is associated with episodic fever, myalgia, arthralgia, malaise, progressive sensorineural hearing loss, and amyloid nephropathy (the most severe complication)...
June 2017: Cutis; Cutaneous Medicine for the Practitioner
https://www.readbyqxmd.com/read/28574612/basal-cell-carcinoma-pathogenesis-and-therapy-involving-hedgehog-signaling-and-beyond
#15
REVIEW
Anshika Bakshi, Sandeep C Chaudhary, Mehtab Rana, Craig A Elmets, Mohammad Athar
Basal cell carcinoma (BCC) of the skin is driven by aberrant hedgehog signaling. Thus blocking this signaling pathway by small molecules such as vismodegib inhibits tumor growth. Primary cilium in the epidermal cells plays an integral role in the processing of hedgehog signaling-related proteins. Recent genomic studies point to the involvement of additional genetic mutations that might be associated with the development of BCCs, suggesting significance of other signaling pathways, such as WNT, NOTCH, mTOR, and Hippo, aside from hedgehog in the pathogenesis of this human neoplasm...
December 2017: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/28525403/genetic-diseases-associated-with-an-increased-risk-of-skin-cancer-development-in-childhood
#16
Alexander L Fogel, Kavita Y Sarin, Joyce M C Teng
PURPOSE OF REVIEW: Childhood skin cancers are relatively rare and may indicate an underlying genetic disorder. The increasing elucidation of genetic pathways is changing the diagnosis and management of genetic skin cancer susceptibility syndromes. In this review, we provide an overview of genetic conditions that predispose to skin cancer development in childhood and signs that providers should assess when evaluating affected individuals. RECENT FINDINGS: In basal cell nevus syndrome (BCNS), the patched2 (PTCH2) and suppressor of fused (SUFU) genes have been implicated in disease pathogenesis...
August 2017: Current Opinion in Pediatrics
https://www.readbyqxmd.com/read/28425690/what-s-new-with-common-genetic-skin-disorders
#17
Janice E Ma, Jennifer L Hand
Familiar genetic disorders such as neurofibromatosis type I (NF1), tuberous sclerosis complex (TSC), oculocutaneous albinism (OCA), basal cell nevus syndrome (BCNS), incontinentia pigmenti, ichthyosis, and epidermolysis bullosa (EB) have prominent, cutaneous manifestations. This review describes recent advances in knowledge concerning the pathophysiology, diagnosis, and treatment of these skin features. Specifically, clinical diagnostic criteria for incontinentia pigmenti, ichthyosis, and tuberous sclerosis have been updated...
April 20, 2017: Minerva Pediatrica
https://www.readbyqxmd.com/read/28411843/the-molecular-revolution-in-cutaneous-biology-emerging-landscape-in-genomic-dermatology-new-mechanistic-ideas-gene-editing-and-therapeutic-breakthroughs
#18
REVIEW
Matthias Titeux, Araksya Izmiryan, Alain Hovnanian
Stunning technological advances in genomics have led to spectacular breakthroughs in the understanding of the underlying defects, biological pathways and therapeutic targets of skin diseases leading to new therapeutic interventions. Next-generation sequencing has revolutionized the identification of disease-causing genes and has a profound impact in deciphering gene and protein signatures in rare and frequent skin diseases. Gene addition strategies have shown efficacy in junctional EB and in recessive dystrophic EB (RDEB)...
May 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28329640/diagnostic-parameters-of-children-with-basal-cell-carcinoma-nevus-syndrome
#19
Fariha T Siddiqui
Basal Cell Carcinoma Nevus Syndrome (BCCNS) is a multi-system genetic disease characterized by the development of multiple basal cell carcinomas (BCCs), macrocephaly, medulloblastomas, jaw keratocysts, and coarse facial features, amongst other symptoms. The major and minor criteria for adults with BCCNS are often extrapolated for children, however, little is known about the disease presentation of children with BCCNS. Our study focused on bringing the pediatric presentation of BCCNS to light. To the best of our knowledge, we are the first to investigate BCCNS and its medical impact on children...
September 15, 2016: Dermatology Online Journal
https://www.readbyqxmd.com/read/28329629/basal-cell-carcinoma-nevus-syndrome-population-of-patients-negative-for-chromosome-9-mutations
#20
Brittany Urso, Katelyn Updyke, James A Solomon
Patients with Basal Cell Carcinoma Nevus syndrome are assumed to have a chromosome 9 mutation, such as a PTCH1 [9q22] mutation, despite the majority of patients with BCCNS being diagnosed through the presence of major and minor diagnostic criterion. The main treatment for BCCNS, Hedgehog inhibitors (HhI), targets these mutations. The results of an internet based survey of self-identified adults with BCCNS which was launched through SurveyMonkey with access provided by the Basal Cell Carcinoma Nevus Syndrome Life Support Network (www...
September 15, 2016: Dermatology Online Journal
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