10 results on '"Christen-Zaech S"'
Search Results
2. Cerebriform sebaceous nevus: a subtype of organoid nevus due to specific postzygotic FGFR2 mutations.
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Theiler, M., Weibel, L., Christen‐Zaech, S., Carmignac, V., Sorlin, A., Neuhaus, K., Chevarin, M., Thauvin‐Robinet, C., Philippe, C., Faivre, L., Vabres, P., and Kuentz, P.
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ACANTHOSIS nigricans , *NEVUS , *NUCLEOTIDE sequencing , *ACNE , *PROGNOSIS , *DIAGNOSIS - Abstract
Background: Postzygotic mutations in FGFR2 have been identified in mosaic forms of acne, keratinocytic epidermal nevi, nevoid acanthosis nigricans / rounded and velvety epidermal nevus and in two fetuses with papillomatous pedunculated sebaceous nevus (PPSN). Objectives: To determine the clinical and genetic characteristics of children with cerebriform, papillomatous and pedunculated variants of sebaceous nevi. Methods: Infants diagnosed with sebaceous nevi characterized by a cerebriform, papillomatous and/or pedunculated morphology over a 10‐year period (2010–2019) at three paediatric dermatology centres in Switzerland and France were included in this case series. Clinical and histological characteristics were assessed. Next‐generation sequencing was used to assess for FGFR2 mutations. Results: All nevi were located on the head, with a rounded or linear shape and a typical cerebriform, sometimes papillomatous and pedunculated, surface. No associated extracutaneous anomalies were found. Nevi harboured postzygotic mutations in the transmembrane domain of FGFR2 in 6/8 children (75%), either the known specific p.(Cys382Arg) mutation in 5 cases, or a novel mutation, p.(Val395Asp), in one. Conclusions: We found an exquisite genotype–phenotype correlation in these rare nevi, with specific postzygotic mutations in the transmembrane domain of FGFR2. As not all lesions were truly papillomatous and pedunculated, the term cerebriform sebaceous nevus (CSN) appears more suitable than PPSN to describe this entity. The cerebriform pattern of CSN is reminiscent of cutis gyrata, as seen in Beare–Stevenson syndrome, which is caused by closely related germline FGFR2 mutations. While clinically impressive, CSN seem to carry a good prognosis and a low risk for extracutaneous associations. [ABSTRACT FROM AUTHOR]
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- 2021
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3. Line‐field confocal optical coherence tomography of pyogenic granulomas in children: report of two cases.
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Gallay, C., Ventéjou, S., and Christen‐Zaech, S.
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OPTICAL coherence tomography , *GRANULOMA , *EOSINOPHILIC granuloma , *SPATIAL resolution , *SKIN imaging - Abstract
Line-field confocal optical coherence tomography for high-resolution noninvasive imaging of skin tumors. 7 Ruini C, Schuh S, Sattler E, Welzel J. Line-field confocal optical coherence tomography-practical applications in dermatology and comparison with established imaging methods. LC-OCT is a non-invasive method for skin assessment, allowing evaluation of skin lesion up to a depth of about ˜500 µm (upper dermis).2 We report two paediatric cases with a clinically and dermoscopically diagnosed pyogenic granuloma. [Extracted from the article]
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- 2022
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4. First update of the living European guideline (EuroGuiDerm) on atopic eczema.
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Wollenberg, A., Kinberger, M., Arents, B., Aszodi, N., Barbarot, S., Bieber, T., Brough, H. A., Pinton, P. C., Christen‐Zaech, S., Deleuran, M., Dittmann, M., Fosse, N., Gáspár, K., Gerbens, L. A. A., Gieler, U., Girolomoni, G., Gregoriou, S., Mortz, C. G., Nast, A., and Nygaard, U.
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ATOPIC dermatitis , *ECZEMA , *CLINICAL trials , *BLOOD cell count - Published
- 2023
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5. In vivo evaluation of skin of children with LC‐OCT: An objective assessment.
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del Río‐Sancho, S., Gallay, C., Ventéjou, S., and Christen‐Zaech, S.
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CHILD patients , *OPTICAL coherence tomography , *AGE groups , *SKIN imaging , *FORELIMB , *PEDIATRIC dermatology , *MYCOPLASMA pneumoniae infections - Abstract
Background: Several non‐invasive skin imaging methods have been developed in recent years. Line‐field confocal optical coherence tomography (LC‐OCT) is one of them, leading to the best compromise in terms of resolution and penetration depth. Skin biopsies are an essential technique in paediatric dermatology, but they are a major stressful event for the child and their parents. Current LC‐OCT studies have not been dedicated to a paediatric population. If, however, LC‐OCT proves to be helpful in children, it may help guide and decrease a certain number of skin biopsies. Objectives: (1) To evaluate the feasibility of using LC‐OCT in paediatric patients, and (2) to assess the maturation of skin structures in children over time with this method. Methods: In vivo LC‐OCT images were collected on six specific body regions (forehead, forearm, chest, back, dorsum of the hand and palmar surface) and in six age groups (between the ages of 0 and 16 years). Results: In all body areas and age groups assessed, 9 of 10 images were rated as good‐to‐excellent, the only exception were the images acquired on the palmar surface. LC‐OCT allowed visualizing very well the skin structures up to a penetration of 500 μm. We observed that the body regions located on the upper extremities of the body (forearm, dorsum of the hand and palmar surface) showed both a maturation on their structure and differences in thickness with respect to the other regions evaluated. Conclusions: LC‐OCT can easily be used for non‐invasive imaging of children's skin and allows to document progressive skin changes in the different age groups. It may be a useful asset for imaging and diagnosing superficial skin disorders and as such reducing the number of invasive procedures while increasing the speed of diagnosis in the paediatric population. [ABSTRACT FROM AUTHOR]
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- 2023
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6. Risk of severe allergic reactions to COVID‐19 vaccines among patients with allergic skin diseases – practical recommendations. A position statement of ETFAD with external experts.
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Ring, J., Worm, M., Wollenberg, A., Thyssen, J.P., Jakob, T., Klimek, L., Bangert, C., Barbarot, S., Bieber, T., Bruin‐Weller, M.S., Chernyshov, P.V., Christen‐Zaech, S., Cork, M., Darsow, U., Flohr, C., Fölster‐Holst, R., Gelmetti, C., Gieler, U., Gutermuth, J., and Heratizadeh, A.
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COVID-19 vaccines , *SKIN diseases , *ALLERGIES , *MEDICAL personnel , *ECZEMA , *PHYSICIANS - Abstract
Dr. Seneschal has been an investigator, speaker, or consultant for Novartis, Abbvie, Sanofi, LeoPharma and Eli Lilly. Dr. De Raeve is a consultant, member of scientific advisory boards and/ or received personal fees and non-financial support from LEO Pharma, Pierre Fabre, Sanofi-Genzyme and Bioderma. Dr. Vestergaard has been investigator, speaker, or consultant for Novartis, Abbvie, Sanofi, LeoPharma and Eli Lilly. [Extracted from the article]
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- 2021
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7. European task force on atopic dermatitis position paper: treatment of parental atopic dermatitis during preconception, pregnancy and lactation period.
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Vestergaard, C., Wollenberg, A., Barbarot, S., Christen‐Zaech, S., Deleuran, M., Spuls, P., Flohr, C., Trzeciak, M., von Kobyletzki, L., Seneschal, J., Paul, C., Bieber, T., Werfel, T., Fölster‐Holst, R., Darsow, U., Gieler, U., Svensson, Å., Cork, M., Stalder, J.‐F., and De Raeve, L.
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ATOPIC dermatitis , *GRAFT versus host disease , *TASK forces , *SCIENTIFIC literature , *POTASSIUM permanganate - Abstract
Atopic dermatitis (AD) is a common inflammatory skin disease that affects both children and adults, including a large number of adults of reproductive age. Several guidelines for the treatment of AD exist, yet specific recommendations for the treatment of pregnant or lactating women and for adults planning to have a child are often lacking. This position paper from the European Task force on Atopic Dermatitis (ETFAD) is based on up‐to‐date scientific literature on treating pregnant and lactating women as wells as adults with AD planning to have a child. It is based on the expert opinions of members of the ETFAD and on existing safety data on the proposed treatments, many of which are derived from patients with other inflammatory diseases or from transplantation medicine. For treating future parents, as well as pregnant and lactating women with AD, the use of topical treatments including moisturizers, topical corticosteroids, tacrolimus, antiseptics such as chlorhexidine, octenidine, potassium permanganate and sodium hypochlorite (bleach) is deemed to be safe. Ultraviolet (UV) therapy may also be used. Systemic treatment should be prescribed only after careful consideration. According to the opinion of the ETFAD, treatment should be restricted to systemic corticosteroids and cyclosporine A, and, in selected cases, azathioprine. [ABSTRACT FROM AUTHOR]
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- 2019
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8. Consensus‐based European guidelines for treatment of atopic eczema (atopic dermatitis) in adults and children: part II.
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Wollenberg, A., Barbarot, S., Bieber, T., Christen‐zaech, S., Deleuran, M., Fink‐wagner, A., Gieler, U., Girolomoni, G., Lau, S., Muraro, A., Czarnecka‐operacz, M., Schäfer, T., Schmid‐grendelmeier, P., Simon, D., Szalai, Z., Szepietowski, J. C., Taïeb, A., Torrelo, A., Werfel, T., and Ring, J.
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ECZEMA in children , *TREATMENT of eczema , *ANTI-infective agents , *IMMUNOTHERAPY , *PHOTOTHERAPY - Abstract
Abstract: This guideline was developed as a joint interdisciplinary European project, including physicians from all relevant disciplines as well as patients. It is a consensus‐based guideline, taking available evidence from other guidelines, systematic reviews and published studies into account. This second part of the guideline covers antimicrobial therapy, systemic treatment, allergen‐specific immunotherapy, complementary medicine, psychosomatic counselling and educational interventions, whereas the first part covers methods, patient perspective, general measures and avoidance strategies, basic emollient treatment and bathing, dietary intervention, topical anti‐inflammatory therapy, phototherapy and antipruritic therapy. Management of AE must consider the individual clinical variability of the disease. Systemic immunosuppressive treatment with cyclosporine, methotrexate, azathioprine and mycophenolic acid is established option for severe refractory cases, and widely available. Biologicals targeting the T helper 2 pathway such as dupilumab may be a safe and effective, disease‐modifying alternative when available. Oral drugs such as JAK inhibitors and histamine 4 receptor antagonists are in development. Microbial colonization and superinfection may cause disease exacerbation and can require additional antimicrobial treatment. Allergen‐specific immunotherapy with aeroallergens may be considered in selected cases. Psychosomatic counselling is recommended especially in stress‐induced exacerbations. Therapeutic patient education (‘Eczema school’) is recommended for children and adult patients. General measures, basic emollient treatment, bathing, dietary intervention, topical anti‐inflammatory therapy, phototherapy and antipruritic therapy have been addressed in the first part of the guideline. [ABSTRACT FROM AUTHOR]
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- 2018
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9. Consensus‐based European guidelines for treatment of atopic eczema (atopic dermatitis) in adults and children: part I.
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Wollenberg, A., Barbarot, S., Bieber, T., Christen‐zaech, S., Deleuran, M., Fink‐wagner, A., Gieler, U., Girolomoni, G., Lau, S., Muraro, A., Czarnecka‐operacz, M., Schäfer, T., Schmid‐grendelmeier, P., Simon, D., Szalai, Z., Szepietowski, J. C., Taïeb, A., Torrelo, A., Werfel, T., and Ring, J.
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THERAPEUTICS laws , *TREATMENT of eczema , *GUIDELINES , *DISEASE management , *HEALTH care teams , *MEDICAL laws - Abstract
Abstract: This guideline was developed as a joint interdisciplinary European project, including physicians from all relevant disciplines as well as patients. It is a consensus‐based guideline, taking available evidence from other guidelines, systematic reviews and published studies into account. This first part of the guideline covers methods, patient perspective, general measures and avoidance strategies, basic emollient treatment and bathing, dietary intervention, topical anti‐inflammatory therapy, phototherapy and antipruritic therapy, whereas the second part covers antimicrobial therapy, systemic treatment, allergen‐specific immunotherapy, complementary medicine, psychosomatic counselling and educational interventions. Management of AE must consider the individual clinical variability of the disease; highly standardized treatment rules are not recommended. Basic therapy is focused on treatment of disturbed barrier function by hydrating and lubricating topical treatment, besides further avoidance of specific and unspecific provocation factors. Topical anti‐inflammatory treatment based on glucocorticosteroids and calcineurin inhibitors is used for flare management and for proactive therapy for long‐term control. Topical corticosteroids remain the mainstay of therapy, whereas tacrolimus and pimecrolimus are preferred in sensitive skin areas and for long‐term use. Topical phosphodiesterase inhibitors may be a treatment alternative when available. Adjuvant therapy includes UV irradiation, preferably with UVB 311 nm or UVA1. Pruritus is targeted with the majority of the recommended therapies, but some patients may need additional antipruritic therapy. Antimicrobial therapy, systemic anti‐inflammatory treatment, immunotherapy, complementary medicine and educational intervention will be addressed in part II of the guideline. [ABSTRACT FROM AUTHOR]
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- 2018
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10. Retrospective study of rapamycin or rapalog 0-1% cream for facial angiofibromas in tuberous sclerosis complex: evaluation of treatment effectiveness and cost.
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Norrenberg, S., Masconi, M., Karamanou, M., Meylan, P., Golaz, R., and Christen-Zaech, S.
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RAPAMYCIN , *TUBEROUS sclerosis , *CHILDREN'S health - Published
- 2018
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