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Mahé E, Maccari F, Beauchet A, Quiles-Tsimaratos N, Beneton N, Parier J, Barthelemy H, Goujon-Henry C, Chaby G, Thomas-Beaulieu D, Géner G, Wagner L, Pallure V, Devaux S, Vermersch-Langlin A, Pfister P, Jégou J, Livideanu C, Sigal ML. Patients atteints de psoriasis : analyse de la population insatisfaite de sa prise en charge. Ann Dermatol Venereol 2017. [DOI: 10.1016/j.annder.2017.03.025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Baltazard T, Dhaille F, Chaby G, Lok C. Value of dermoscopy for the diagnosis of monilethrix. Dermatol Online J 2017; 23:13030/qt9hf1p3xm. [PMID: 29469711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Accepted: 07/20/2017] [Indexed: 06/08/2023] Open
Abstract
Monilethrix is a rare genodermatosis characterized by a hair shaft dysplasia responsible for hypotrichosis. We report the case of a child with monilethrix with no associated cases in the family. Trichoscopy facilitated the diagnosis. A 2-year-old boy presented with diffuse alopecia and persistent fragile hair for several months. Clinical examination revealed alopecia with hairs broken several millimeters from the scalp. Trichoscopy revealed zones of dystrophic constriction of the hair shaft, separated at regular intervals by elliptical nodes of normal thickness, giving a "necklace" appearance. The diagnosis of monilethrix was made on the basis of these specific features. The diagnosis of monilethrix was more difficult to establish in our patient owing to the absence of any familial cases.
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Baltazard T, Dhaille F, Chaby G, Lok C. Value of dermoscopy for the diagnosis of monilethrix. Dermatol Online J 2017. [DOI: 10.5070/d3237035758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
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Baltazard T, Dhaille F, Duvert-Lehembre S, Lok C, Chaby G. Trimethoprim-sulfamethoxazole-induced linear IgA bullous disease presenting as toxic epidermal necrolysis. Dermatol Online J 2017. [DOI: 10.5070/d3238036012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
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55
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Bertrand AS, Ofaiche J, Bernard P, Lipsker D, Saillard C, Granel-Brocart F, Jachiet M, Pham-Ledard A, Aubin F, Avenel-Audran M, Chaby G, Jeudy G, Meunier L, Richard MA, Joly P, Guillot B, Dereure O. Place du rituximab dans les pemphigoïdes bulleuse et gestationnelle : étude rétrospective nationale multicentrique de 48 observations. Ann Dermatol Venereol 2016. [DOI: 10.1016/j.annder.2016.09.211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Jelti L, Le Bourhis-Zaimi M, Lacour JP, Uthurriague C, Doutre MS, Delaporte E, Duvert-Lehembre S, Quereux G, Dupuy A, Adamski H, Bedane C, Misery L, Abasq Thomas C, Fleuret C, Bernard P, Chaby G, D’incan M, Verneuil L, Litrowski N, Joly P. Incidence et mortalité du pemphigus en France. Ann Dermatol Venereol 2016. [DOI: 10.1016/j.annder.2016.09.147] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Terrom M, Dadban A, Vanrenterghem A, Djeddi DD, Lok C, Chaby G. Réactions cutanées paradoxales sous anti-TNFα en population pédiatrique : étude rétrospective au CHU d’Amiens. Ann Dermatol Venereol 2016. [DOI: 10.1016/j.annder.2016.09.460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Mathieu S, Ram-Wolff C, Beylot-Barry M, D’incan M, Oro S, Quéreux G, Chaby G, Aubin F, Wierzbicka Hainaut E, Skowron F, Bonnet N, Dereure O, Adamski H, Brunet-Possenti F, Bagot M. L’expérience française de l’usage du gel de chlorméthine pour le traitement du mycosis fongoïde : une série rétrospective de 107 cas du GFELC. Ann Dermatol Venereol 2016. [DOI: 10.1016/j.annder.2016.09.166] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Lafabregue E, Lorriaux A, Sevestre H, Arnault JP, Attencourt C, Fraitag S, Chaby G, Lok C. Tumeur myofibroblastique type plaque du nourrisson. Ann Dermatol Venereol 2016. [DOI: 10.1016/j.annder.2016.09.462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Lafabregue E, Arnault JP, Dessirier F, Chauffert B, Chaby G, Lok C. Ulcération de cicatrices anciennes sous anti-VEGF. Ann Dermatol Venereol 2016. [DOI: 10.1016/j.annder.2016.09.665] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Devred I, Arnault JP, Lorriaux A, Denamps J, Dadban A, Chaby G, Lok C. De curieux nodules. Ann Dermatol Venereol 2016. [DOI: 10.1016/j.annder.2016.09.508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Constance D, Dadban A, Lorriaux A, Denamps J, Arnault J, Lok C, Chaby G. Association entre un nævus congénital du canthus externe et un strabisme par agénésie du VIe nerf crânien homolatéral. Ann Dermatol Venereol 2016. [DOI: 10.1016/j.annder.2016.09.445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Joachim C, Mazgaj C, Chaby G, Lok C, Petit T. [Facial miliary osteoma]. Ann Dermatol Venereol 2016; 143:875-876. [PMID: 27418006 DOI: 10.1016/j.annder.2016.05.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2016] [Revised: 04/18/2016] [Accepted: 05/03/2016] [Indexed: 10/21/2022]
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Méry-Bossard L, Bagny K, Chaby G, Khemis A, Maccari F, Marotte H, Perrot JL, Reguiai Z, Sigal ML, Avenel-Audran M, Boyé T, Grasland A, Gillard J, Jullien D, Toussirot E. New-onset vitiligo and progression of pre-existing vitiligo during treatment with biological agents in chronic inflammatory diseases. J Eur Acad Dermatol Venereol 2016; 31:181-186. [PMID: 27291924 DOI: 10.1111/jdv.13759] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Accepted: 04/06/2016] [Indexed: 02/06/2023]
Abstract
BACKGROUND The development of vitiligo during treatment with biological agents is an unusual event and only a few isolated cases have been reported. OBJECTIVES To describe the clinical characteristics and evolution of patients developing new-onset vitiligo following initiation of a biological agent for chronic inflammatory disease; and also to report the clinical course of pre-existing vitiligo under biological therapy. METHODS This nationwide multicentre, retrospective study, carried out between July 2013 and January 2015, describes the characteristics of a large series of 18 patients (psoriasis N = 8, inflammatory rheumatic diseases N = 8, ulcerative colitis N = 1, uveitis N = 1) who developed new-onset vitiligo while receiving a biological agent. RESULTS TNFα inhibitors were the most common biological agent involved (13/18) while anti-IL-12/23 and anti-IL-17 agents or abatacept were less common (4/18 and 1/18 respectively). Mean duration of biological agent exposure before vitiligo onset was 13.9 ± 16.5 months. Outcome was favourable for most patients (15/17) while maintaining the biological agent. Data were also collected for 18 patients (psoriasis N = 5, inflammatory rheumatic diseases N = 10, inflammatory bowel diseases N = 2, SAPHO N = 1) who had pre-existing vitiligo when treatment with a biological agent started (TNFα inhibitors N = 15, ustekinumab N = 1, rituximab N = 1, tocilizumab N = 1). Vitiligo progressed in seven patients and was stable or improved in eight cases. CONCLUSION Vitiligo may thus emerge and/or progress during treatment with various biological agents, mainly TNFα inhibitors and could be a new paradoxical skin reaction. De novo vitiligo displays a favourable outcome when maintaining the biological agent, whereas the prognosis seems worse in cases of pre-existing vitiligo.
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Terrom M, Dhaille F, Baltazard T, Dadban A, Sevestre H, Lok C, Chaby G. Guttate leukoderma in Darier disease: case report and review. J Eur Acad Dermatol Venereol 2016; 30:e205-e209. [DOI: 10.1111/jdv.13536] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Alkeraye S, Dadban A, Lok C, Arnault JP, Chaby G. C-Kit non-mutated metastatic melanoma showing positive response to Nilotinib. Dermatol Online J 2016; 22:13030/qt13s758x1. [PMID: 26990482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Accepted: 01/15/2016] [Indexed: 06/05/2023] Open
Abstract
Melanoma is an aggressive tumor with advanced disease characterized by widespread metastatic lesions and the tumor has traditionally been resistant to most forms of treatment. Indeed, metastatic melanoma has a very poor prognosis with a median survival time of 8-9 months and an estimated 3-year survival rate of less than 15%. Recent advances in our understanding of the genetic profile of melanoma cells and the molecular factors that drive malignant transformation have resulted in the identification of numerous new therapeutic targets. KIT is an established therapeutic target in cancers with activating mutations of KIT, such as gastrointestinal stromal tumors (GIST), and considerable efficacy has been achieved with various small molecule inhibitors of KIT including imatinib mesylate. Nilotinib is an inhibitor of ligand-induced PDGFRα and PDFGRβ kinase activity and autophosphorylation of constitutively activated KIT harboring exon 13 or exon 11 mutations (IC50 values of 0.2 and 0.027 μmol/L, respectively), with efficacy comparable to that of imatinib. We report a case of non-kit mutated metastatic vaginal melanoma showing impressive response to nilotinib.
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Alkeraye S, Dadban A, Lok C, Arnault JP, Chaby G. C-Kit non-mutated metastatic melanoma showing positive response to Nilotinib. Dermatol Online J 2016. [DOI: 10.5070/d3221029802] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
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Bénéton N, Mahé E, Bauchet A, Perrussel M, Chaby G, Quiles N, Pallure V, Khemis A, Begon E, Maccari F, Boye T. Résultats préliminaires d’une étude rétrospective multicentrique sur l’utilisation des biothérapies chez le sujet âgé au cours du psoriasis. Ann Dermatol Venereol 2015. [DOI: 10.1016/j.annder.2015.10.308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Lombart F, Dadban A, Arnault JP, Chaby G, Dhaille F, Brigant F, Denamps J, Lorriaux A, Decamps C, Bekel L, Dillies A, Romeo B, Lok C. Pathologies dermatologiques rencontrées aux urgences pédiatriques. Intérêt d’une collaboration entre pédiatres et dermatologues. Ann Dermatol Venereol 2015. [DOI: 10.1016/j.annder.2015.10.250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Denamps J, Brigant F, Caudron A, Chaby G, Dadban A, Arnault JP, Coutte A, Lok C. Nævus et radiothérapie : analyse dermoscopique des nævus après un traitement par radiothérapie externe. Ann Dermatol Venereol 2015. [DOI: 10.1016/j.annder.2015.10.230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Delcroix F, Arnault JP, Fumery M, Faiz S, Mortier L, Duval-Modeste AB, Chaby G, Dadban A, Lok C. L’infection à Clostridium difficile, une complication de la colite auto-immune secondaire aux anti-CTLA-4 et aux anti-PD-1. Ann Dermatol Venereol 2015. [DOI: 10.1016/j.annder.2015.10.523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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72
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Lorriaux A, Chaby G, Brigant F, Schmit JL, Belhout M, Lok C. Prise en charge hospitalière des patients atteints d’érysipèle : mise en place et évaluation d’un protocole d’antibiothérapie dans le service de dermatologie du CHU d’Amiens. Ann Dermatol Venereol 2015. [DOI: 10.1016/j.annder.2015.10.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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73
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Lorriaux A, Chaby G, Dhaille F, Dadban A, Arnault JP, Dhillies AS, Lombart F, Chatelain D, Lok C. Nonuraemic calciphylaxis: response to treatment with pamidronate and negative pressure therapy. Clin Exp Dermatol 2014; 40:52-5. [DOI: 10.1111/ced.12505] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/08/2014] [Indexed: 01/02/2023]
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74
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Baltazard T, Dhaille F, Lok C, Duvert-Lehembre S, Joly P, Chaby G. Dermatose bulleuse à IgA linéaire atypique au cotrimoxazole (Bactrim®). Ann Dermatol Venereol 2014. [DOI: 10.1016/j.annder.2014.09.602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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75
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Alkeraye S, Dadban A, Arnault JP, Lok C, Chaby G. À propos d’un cas de mélanome vaginal métastatique sans mutation du gène KIT détectable avec réponse favorable sous nilotinib. Ann Dermatol Venereol 2014. [DOI: 10.1016/j.annder.2014.09.388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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