P Saiag

Université de Versailles Saint-Quentin, Versailles, Île-de-France, France

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Publications (233)651.9 Total impact

  • [Show abstract] [Hide abstract]
    ABSTRACT: It can be useful to assess the NRAS mutation status in patients with metastatic melanoma because NRAS-activating mutations confer resistance to RAF inhibitors, and NRAS-mutated patients appear to be sensitive to mitogen-activated protein kinase (MEK) inhibitors. We aimed to assess the diagnostic accuracy of an immunohistochemistry (IHC) approach using a novel anti-NRAS (Q61R) monoclonal antibody on formalin-fixed paraffin-embedded tissue samples from patients with metastatic melanoma. We conducted a retrospective multicenter cohort study on 170 patients with metastatic melanoma. The automated IHC assay was performed using the SP174 clone, and compared with results of the molecular testing. Evaluation of a test cohort with knowledge of the mutation status established a specific IHC pattern for the mutation. In the independent blinded analysis of the remaining cases, the anti-NRAS (Q61R) antibody accurately identified all NRAS Q61R-mutated tumors, and demonstrated 100% sensitivity and specificity. Limitations include retrospective design and lack of multicenter interobserver reproducibility. The NRAS (Q61R) IHC assay is reliable and specific for the evaluation of the Q61R mutation status in metastatic melanoma and may be an alternative to molecular biology in evaluation of metastatic melanoma in routine practice. Copyright © 2015 American Academy of Dermatology, Inc. Published by Elsevier Inc. All rights reserved.
    Journal of the American Academy of Dermatology 02/2015; · 5.00 Impact Factor
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    ABSTRACT: Objectives The incidence of skin cancers, melanoma in particular, is increasing rapidly. Consequently, specific recommendations for sun-protection measures now exist. This survey set out to assess the compliance of the general population with these guidelines.Methods The French nationwide observational survey, EDIFICE Melanoma, was conducted (28 September to 20 October 2011) through phone interviews of a representative sample of 1502 subjects aged ≥ 18 years, using the quota method. Sun-protection was defined as frequent or systematic use of clothes or sunscreen. The group of individuals who declared exposure to the sun (N = 1172) was subdivided: risk-takers (N = 442), and those who used sun protection (N = 730).ResultsRisk-takers were significantly more often male (62% vs. 44%, P < 0.01), had a lower level of education (40% vs. 26%, P < 0.01), lower incomes (2587 euros vs. 2948 euros/month) and were more often smokers (42% vs. 31%, P < 0.01). In contrast, age, marital status and use of sunbeds were not significantly different between the two groups. Interestingly, risk-takers had less risk factors for melanoma. However, they were less well-informed about high-risk exposure and optimal use of sunscreen. Sun-protection measures for their children were less stringent than those of the group who used sun protection: systematic/frequent use of sunglasses (42% vs. 59%, P < 0.01), systematic use of sunscreen (77% vs. 86%, P < 0.01), and frequent renewal (69% vs. 82%, P < 0.01), high sun protection factors (SPF) (46% vs. 56%, P < 0.01), use of clothing (84% vs. 92%, P < 0.01) and hats (88% vs. 94%, P < 0.01).Conclusions Risk-takers are characterized by a lesser understanding of sun-protection measures and behaviours. Their children benefit less from protective measures than those of people who use sun protection themselves. Improved understanding may well improve behaviours; one can therefore legitimately predict a considerable impact on parents' attitude to their own protection and that of their children.
    Journal of the European Academy of Dermatology and Venereology 02/2015; 29(s2). · 2.69 Impact Factor
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    ABSTRACT: Background Routine sun protection is recommended to prevent skin cancer. The aims of the present analysis were to assess and compare modalities of sun protection in parents and their children.MethodsEDIFICE Melanoma is a French nationwide observational survey. It was conducted through phone interviews among a representative sample of 1502 individuals aged ≥18 years, using the method of quotas. The survey took place shortly after the summer, from 28 September to 20 October 2011.ResultsOf the 1502 subjects interviewed, 1067 reported sun exposure (SE) at least 10 days per year, 748 were parents and 319 had no children. Sun protection measures seemed adequate in both the ‘parents’ and ‘non-parents’ groups: 74% used clothing and 43% used sunscreen, which was reapplied regularly in 57% of cases. Sun protection measures used by SE parents for SE children were superior, both qualitatively and quantitatively, to those used for themselves, i.e., 50% of parents reported using clothing, sunglasses and hats for their children vs. 23% for themselves. In 87% of cases, parents reported regular re-application of sunscreen for their children vs. 44% for themselves. The sunscreen SPF (Sun Protection Factor) was significantly lower for parents than for their children.Conclusions Sun protection awareness appears to be globally satisfactory in the French population, with no difference between adults who are parents and those who are not. From both qualitative and quantitative standpoints, French parents use sun protective measures more efficiently for their children than for themselves.
    Journal of the European Academy of Dermatology and Venereology 02/2015; 29(s2). · 2.69 Impact Factor
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    ABSTRACT: Background The prevention of melanoma can be significantly improved by targeting information directly towards the subpopulation of children and, as a means to achieve it, towards young parents.Objectives The objective of this analysis was to determine the evolution over time of the sun-protection measures adopted by parents for their young children.Methods The Edifice Melanoma survey was based on telephone interviews of a representative sample of 1502 subjects aged ≥18 years. This particular analysis focuses on 864 adults whose children are exposed to the sun for more than 10 days a year. We compared the characteristics and attitudes of two sub-groups of parents with regard to sun protection of young children: current-day behaviour of parents with children <15 years and behaviour in the past of parents whose children are now ≥15 years.ResultsPresent-day parents are more likely than those of previous generations to systematically or often use hats (96% vs. 90%, P < 0.01), protective clothes (92% vs. 84%, P < 0.01), sunscreen (89% vs. 80%, P < 0.01) and sunglasses (63% vs. 44%, P < 0.01) for their children. Systematic application of sunscreen is also more frequent today than several years ago as reported by 81% of present-day parents vs. 74% of those in the past (P < 0.05). Cream is reapplied every 2 h by 41% of present-day parents, compared to 33%, in the past (P < 0.05).Conclusions The attitude of parents towards sun protection for their children has improved over the past decade.
    Journal of the European Academy of Dermatology and Venereology 02/2015; 29(s2). · 2.69 Impact Factor
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    ABSTRACT: Background In addition to natural sunlight, indoor tanning has emerged as a common source of ultraviolet (UV) radiation associated with an increased risk of melanoma. It is classified as a class I human carcinogen by the World Health Organization.Objectives This analysis presents data on the prevalence of sunbed use in France, on factors associated with sunbed use, and on risk factors, attitude and awareness of risk among sunbed users and non-users.Methods Edifice Melanoma, a nationwide observational survey, was conducted in France via telephone interviews among a representative sample of 1502 subjects aged ≥18 years, using the quota method. Sunbed users were defined as individuals who reported having used a sunbed at least once in their lifetime. Logistical regressions were conducted in order to identify which factors differentiate the population of sunbed users from that of non-users.ResultsOne in ten respondents was a sunbed user and three out of four declared having used tanning facilities for over one year. In multivariate analysis, factors significantly associated with the sunbed-user group were female gender (OR = 3.897 [2.573–5.903], P < 0.001), a higher socio-professional category (OR = 2.227 [1.542–3.217]; P < 0.001), fair hair (OR = 1.583 [1.025–2.447], P = 0.039), fair skin (OR = 1.879 [1.086–3.253]; P = 0.024), freckles (OR = 1.570 [1.071–2.302]; P = 0.021) and a history of smoking (OR = 2.383 [1.633–3.476]; P < 0.001). In a second multivariate model, the fact of having a large number of melanoma risk factors was strongly associated with sunbed use (P = 0.001). Sunbed users were more likely to be informed of the role of sun exposure in reducing the skin's regenerative capacity (OR = 2.181 [1.319–3.607]; P = 0.002) but were nevertheless more likely to consider that a tan makes a person look more attractive (OR = 2.309 [1.312–4.064]; P = 0.004) and protects the skin (OR = 2.490 [1.532–4.046]; P < 0.001); they were also more frequently exposed to natural sunlight (OR = 2.214 [1.196–4.102]; P = 0.011).Conclusions Compared to non-users, sunbed users cumulate risk factors for melanoma. Knowledge, attitudes and intentions of individuals are critical targets for public education programmes. However, awareness campaigns focusing on sunbed use, and more generally on skin cancer, should also take social and cultural norms into account.
    Journal of the European Academy of Dermatology and Venereology 02/2015; 29(s2). · 2.69 Impact Factor
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    ABSTRACT: Background The incidence of melanoma is increasing worldwide, causing significant economic burden at community and individual levels. Ultraviolet radiation, from natural sunlight or artificial sources, is the main environmental, modifiable risk factor for melanoma.Objectives The present analysis assesses the profile of sun exposure in the French population as well as the level of awareness about ultraviolet risk and protection.Methods The survey was conducted via telephone interviews in September and October 2011. In total, 1502 respondents were questioned about their own sun exposure with the question “do you ever, even occasionally, spend time in the sun, during leisure-time, vacation or your professional occupation?” They were also asked about sun protection measures used: protective clothing, a hat or sunscreen.ResultsMore than three respondents out of four (78%) declared exposing themselves to the sun, with an average of 113 days per year. Of these, 38% did not use appropriate sun protection measures. We identified the following characteristics of individuals declaring high sun exposure: chiefly men under the age of 40, higher socio-professional levels, and adults with no children. Individuals who make a poor use of protective measures are mostly men and of low educational levels. Individuals declaring low sun exposure were chiefly: women, individuals over the age of 60, and those with no professional activity. The high sun protection population comprises mostly: women, higher socio-professional levels, with no specific age-group profile.Conclusions Analysis of the EDIFICE Melanoma survey provides information about the attitudes of the French population towards sun exposure. The most frequent contexts of sun exposure and the associated socio-demographic characteristics of the population with at-risk attitudes regarding sun exposure are identified. This deeper insight into the profile of at-risk populations will allow interventions to be more accurately targeted, thus potentially improving public health benefits.
    Journal of the European Academy of Dermatology and Venereology 02/2015; 29(s2). · 2.69 Impact Factor
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    ABSTRACT: Background Melanoma incidence is increasing worldwide thus justifying information campaigns aimed at reducing ultraviolet exposure levels and promoting early diagnosis.Objectives We set out to assess awareness, knowledge and attitudes of the French population with regard to melanoma prevention and early diagnosis, following more than 15 years of nationwide information campaigns.Methods The French nationwide observational survey, EDIFICE Melanoma, was conducted after the summer (September to October 2011) through structured telephone interviews of a representative sample of 1502 individuals aged ≥18 years, using the quota method. All French regions were represented.ResultsRespondents had heard of sun-induced skin damage: 92% knew that sun increases melanoma risk. Knowledge of sun-protection measures was also good: 97% correctly cited at least one method of photoprotection (clothing 80%, sunscreens 69%) and 97% declared that sun exposure should be reduced between 12 pm and 4 pm in France. Knowledge of melanoma was encouraging: 70% of respondents could define the disease accurately and 60% knew the ABCDE rule for early diagnosis. However, self-tanning and sunbed use were considered by 25% and 13% of respondents, respectively, to provide protection from skin cancer. Although 43% of respondents (58% of high-risk respondents) declared they had consulted a doctor at least once for a suspect skin lesion, their actual behaviour was less encouraging: 30% declared never or almost never protecting their skin; 25% declared regularly checking their skin for atypical nevi; 12% declared checking the entire skin surface. Declared behaviour was better in fair-skin responders and those with a history of sunburn or skin cancer.Conclusions Awareness of melanoma, early-diagnosis procedures and preventive behaviour has improved in the general French population since 1990. However, despite the good level of information, numerous misconceptions persist. Improved information campaigns in the future may help reduce the ever-increasing incidence of melanoma in France.
    Journal of the European Academy of Dermatology and Venereology 02/2015; 29(s2). · 2.69 Impact Factor
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    ABSTRACT: Background The efficiency of skin cancer prevention programmes is strongly correlated with the information dispensed, and with the level of risk awareness, of the overall population on one hand, and on the other, of specific sub-populations, according to their risk profiles.Objectives The primary objective of this analysis was to establish a correlation between individual perceptions of the risk of developing a melanoma, and the recognized intrinsic risk factors for a given individual. Secondary objectives were to assess factors that are potentially associated with acceptable, high or low perception of melanoma risk.Methods The EDIFICE Melanoma survey was conducted in 2011 via telephone interviews of a representative sample of 1502 individuals aged 18 and older in the French population.ResultsAlthough most respondents (73%) had a true estimation of their intrinsic risk for melanoma, those who did not (underestimation, 17%; overestimation, 10%) had an attitude towards environmental risk factors (sun exposure, sun protection, sunbed use) that did not compensate for this misplaced perception.Conclusions Skin cancer prevention messages need to be reinforced, new methods of evaluating understanding of the messages need to be implemented, and both need to be included into personal risk assessment.
    Journal of the European Academy of Dermatology and Venereology 02/2015; 29(s2). · 2.69 Impact Factor
  • Annales de Dermatologie et de Vénéréologie 11/2014; · 0.67 Impact Factor
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    ABSTRACT: Multifactorial predisposition to melanoma includes genes involved in pigmentation, immunity and DNA repair. Nonetheless, missing heritability in melanoma is still important. We studied the role of 335 candidate SNPs in melanoma susceptibility by using a dedicated chip and investigating 110 genes involved in different pathways. A discovery set was comprised of 1069 melanoma patients and 925 controls from France. Data were replicated using validation phases II (1085 cases and 801 controls from Spain) and III (1808 cases and 1894 controls from Germany and a second set of Spanish samples). In addition, an exome sequencing study was performed in 3 high-risk French melanoma families. Nineteen SNPs in 17 genes were initially associated with melanoma in the French population. Six SNPs were replicated in phase II, including two new SNPs in the WNT3 (rs199524) and VPS41 (rs11773094) genes. The role of VPS41 and WNT3 was confirmed in a meta-analysis (3940 melanoma cases and 3620 controls) with two-side P values of 0.002, (OR=0.86) and 4.07x10(-10) (OR=0.80) respectively. Exome sequencing revealed a non-synonymous VPS41 variant in one family that was shown to be strongly associated with familial melanoma (OR=4.46, P = 0.001) in an independent sample of 178 melanoma families. WNT3 belongs to WNT pathway known to play a crucial role in melanoma, whereas VPS41 regulates vesicular trafficking and is thought to play a role in pigmentation. Our work identified two new pathways involved in melanoma predisposition. These results may be useful in the future for identifying individuals highly predisposed to melanoma. © 2014 Wiley Periodicals, Inc.
    International Journal of Cancer 10/2014; · 6.20 Impact Factor
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    ABSTRACT: As previously shown for imatinib, therapeutic drug monitoring (TDM) of vemurafenib should be important to measure efficacy of the treatment in melanoma patient. A micro-method based on liquid chromatography coupled to triple quadrupole spectrometry detection using only 10μL of plasma was validated. A simple protein precipitation with water/acetonitrile was used after addition of vemurafenib-(13)C6 as internal standard. The ion transitions used to monitor analytes were m/z 490.2→m/z 255.2 and m/z 383.3 for vemurafenib and m/z 496.2→m/z 261.2 and m/z 389.3 for vemurafenib-(13)C6. Calibration curves were linear in the 0.1-100μg/mL range, the limits of detection and quantification being 0.01μg/mL and 0.1μg/mL, respectively. The intra- and inter-assay precisions evaluated at 0.1, 0.3, 15, 45 and 80μg/mL were lower than 13.3% and the accuracies were in the 93.7-105.8 range. No matrix effect was observed. At steady state, the results of TDM of vemurafenib in 26 patients treated by 960mg twice daily (n=60 samples), 13 patients with 740mg twice daily (n=13) and one with 1200mg twice daily (n=3) showed a great variability of the pharmacokinetics of this compound.
    Journal of pharmaceutical and biomedical analysis 04/2014; 97C:29-32. · 2.45 Impact Factor
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    ABSTRACT: IMPORTANCE Primary cutaneous diffuse large B-cell lymphoma, leg type (PCDLBCL-LT), occurs in elderly patients and has been considered as a lymphoma with a poor prognosis, with estimated 5-year specific survival rates of approximately 50%. The hypothesis of an improvement in prognosis over time has not been studied. OBJECTIVES To evaluate this hypothesis in a large series of patients and investigate factors associated with prognosis as well as improvement in the prognosis. DESIGN, SETTING, AND PARTICIPANTS A retrospective multicenter study was conducted including dermatology departments belonging to the French Study Group on Cutaneous Lymphoma. Participants were 115 patients with PCDLBCL-LT diagnosed between 1988 and 2003 (period 1) or between 2004 and 2010 (period 2). MAIN OUTCOMES AND MEASURES Age, sex, period of diagnosis, number of skin lesions, tumor stage, tumor location (leg vs nonleg), lactate dehydrogenase level, type of therapy (with or without a combination of rituximab and polychemotherapy [PCT]), and outcome were recorded. Baseline characteristics and outcome were compared according to period of diagnosis and type of therapy. Prognosis factors were identified by univariate and multivariate survival analyses. RESULTS The mean age of the patients was 76.9 years, and 47% of the patients were older than 80 years. The 3- and 5-year specific survival rates improved between period 1 and period 2, from 55% to 74% and from 46% to 66%, respectively (P = .01). Patients had similar baseline characteristics during both periods, but rituximab-PCT regimens were administered to 88.5% of the patients in period 2 vs 16.7% in period 1 (P < .001). The 3- and 5-year specific survival rates were 80% and 74%, respectively, in patients who received a rituximab-PCT regimen compared with 48% and 38% in those who received less-intensive therapies. No significant difference was observed between both groups in age and baseline prognostic factors. In multivariate analysis, treatment without rituximab-PCT was the only adverse prognostic factor (odds ratio, 4.6 [95% CI, 2.4-9.1]; P < .001), whereas the number of skin lesions (P = .06) and location on the leg (P = .07) had only borderline significance. CONCLUSIONS AND RELEVANCE A major improvement in the survival of patients with PCDLBCL-LT has occurred over time in France, mainly as a result of the use of intensive rituximab-PCT regimens in most patients, including very elderly ones. Until further prospective clinical trials are conducted, such regimens should be considered as the standard of care in these patients.
    JAMA dermatology. 03/2014;
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    ABSTRACT: In-transit metastases in cutaneous melanoma are common and difficult to manage. Therapy is mainly palliative. Use of topical imiquimod has been assessed for surface metastases. We report on four patients with cutaneous melanoma metastases treated with topical imiquimod associated with carbon dioxide laser in the first two patients and with electrocoagulation in the two others. For two patients, we noted complete regression of the lesions after 15 and 18 months. For the two others, treatment was stopped after 9 to 10 months because of progression of subcutaneous metastasis and distant metastasis. Topical imiquimod is an alternative treatment used in superficial in-transit metastasis of melanoma. Its use as a monotherapy is sometimes ineffective. We elected to use combined pre-treatment with carbon dioxide laser or electrocoagulation in order to potentiate the action of imiquimod. This simple and inexpensive therapeutic strategy constitutes a palliative treatment that can allow prolonged local control of cutaneous metastasis.
    Annales de Dermatologie et de Vénéréologie 02/2014; 141(2):106-10. · 0.67 Impact Factor
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    ABSTRACT: Background. The MC1R gene implicated in melanogenesis and skin pigmentation is highly polymorphic. Several alleles are associated with red hair and fair skin phenotypes and contribute to melanoma risk. Objective. This work aims to assess the effect of different classes of MC1R variants, notably rare variants, on melanoma risk. Methods. MC1R coding region was sequenced in 1131 melanoma patients and 869 healthy controls. MC1R variants were classified as RHC (R) and non-RHC (r). Rare variants (frequency < 1%) were subdivided into two subgroups, predicted to be damaging (D) or not (nD). Results. Both R and r alleles were associated with melanoma (OR = 2.66 [2.20-3.23] and 1.51 [1.32-1.73]) and had similar population attributable risks (15.8% and 16.6%). We also identified 69 rare variants, of which 25 were novel. D variants were strongly associated with melanoma (OR = 2.38 [1.38-4.15]) and clustered in the same MC1R domains as R alleles (intracellular 2, transmembrane 2 and 7). Conclusion. This work confirms the role of R and r alleles in melanoma risk in the French population and proposes a novel class of rare D variants as important melanoma risk factors. These findings may improve the definition of high-risk subjects that could be targeted for melanoma prevention and screening.
    BioMed Research International 01/2014; 2014:925716. · 2.71 Impact Factor
  • Journal of Pharmaceutical and Biomedical Analysis. 01/2014; 97:29–32.
  • Brigitte Dreno, Jean-Elie Malkin, Philippe Saiag
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    ABSTRACT: Herpes labialis (HL) is a common and benign disease. However, frequent episodes can impair quality of life (QoL) and impact healthcare consumption. The aim of this survey was to understand patients' profiles, behavior, treatment and quality of life, using web-based questionnaires administered in the USA and in France. A total of 1002 and 1005 patients completed it, respectively. Self-diagnosis of HL is usually made at the very start of the prodromal phase. In the USA, 41% of patients seek medical advice at some point and they are often prescribed a topical antiviral drug (AVD) associated with an over-the-counter drug. Those who treat HL by themselves purchase mainly non-antiviral topical drugs. In France, the treatment is almost identical (topical AVD) whether patients seek medical advice (32%) or not. In both countries, patients with 6 or more annual episodes often go to the doctor and use systemic AVD. Continuous treatment is prescribed to 55% and 35% of patients with at least 4 annual episodes, in the USA and France respectively. Sick leaves are delivered to 33% and 14% of patients, respectively. QoL is significantly impaired in a majority of patients, all the more so when HL episodes are more frequent.
    European journal of dermatology : EJD. 09/2013;
  • Annales de Dermatologie et de Vénéréologie 06/2013; 140(s 6–7):S196. · 0.67 Impact Factor
  • Sophie Lipowicz, Sophie Chagnon, Philippe Saiag
    Melanoma research 06/2013; 23(3):241. · 2.06 Impact Factor
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    ABSTRACT: Context.-Assessment of BRAF p.V600E mutational status has become necessary for treatment of patients with metastatic melanoma. Detection of p.V600E mutation by immunohistochemistry was recently reported in several tumor types. Objective.-To evaluate the interobserver reproducibility of BRAF p.V600E detection by immunohistochemistry in melanoma. Design.-Immunohistochemistry with VE1 antibody was performed on metastatic melanomas of 67 patients. Staining interpretation was performed on digital image virtual slides of tissue microarrays. The p.V600E status was determined by 7 pathologists from 3 European laboratories, blinded for other interpretations and for molecular biology results. Results.-Melanomas had p.V600E (n = 30), p.V600K (n = 4), p.K601E (n = 1), p.600-601delinsE (n = 1), or no p.V600 mutations (n = 31). Staining of p.V600E within mutated cells was cytoplasmic and diffuse, and for each case the staining on the 3 tissue microarray cores was similar. In 53 cases (79.1%) the 7 pathologists had perfect concordance. Agreement of interobserver reproducibility was almost perfect (κ = 0.81 [0.77-0.85]). Only 2 false-positive responses (0.9%) were obtained. The specificities reported were 100% for 5 pathologists (two of whom previously trained for p.V600E interpretation), and 97% for 2 untrained pathologists. Conclusions.-Detection of BRAF p.V600E mutation by immunohistochemistry in melanomas has an excellent interobserver reproducibility. Our results suggest that immunohistochemistry could be used as a first step for detection of BRAF p.V600E mutation, to identify patients with melanoma as candidates for BRAF inhibitors.
    Archives of pathology & laboratory medicine 05/2013; · 2.88 Impact Factor
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    ABSTRACT: INTRODUCTION: Blastic plasmacytoid Dentritic Cell Neoplasm (BPDCN) is, as defined in the new 2008 World health Organized (WHO) classification of tumors of hematopoietic and lymphoid tissue, a rare disease characterized by malignant proliferation of a contingent blastic plasmacytoid dendritic cell. This rare entity is mostly revealed and diagnosed on cutaneous spreading associated d'emblée or not with a leukaemic component .The prognosis is very poor. We herein studied a large cohort of 90 patients with BPDCN and try to define additional clues to coin earlier the correct diagnosis and manage such patients accordingly. MATERIALS AND METHOD: We retrospectively reviewed BPDCN cases registered in the French Study Group on Cutaneous Lymphoma (GFELC) database from November 1995 to January 2012. Ninety patients were studied. Demographic data, clinical presentation, initial staging, and outcome were recorded. RESULTS: The studied group contained 62 male and 28 female patients (sex ratio 2.2). Age ranged from 8 to 103 years at the time of diagnosis (mean age: 67.2 years).Three major different clinical presentations were identified: Sixty six patients (73.2%) presented with nodular lesions only, 11 patients with "bruise-like» patches (12.2%).The remaining 13 ones showed disseminated lesions (patches and nodules). Mucosal lesions were seen in five patients (5.6%) The median survival in patients with BPDCN was at 12 months . CONCLUSIONS: We here distinct three different clinical presentation of BPDCN. Nodular pattern is actually a more common feature than the originally reported "bruise-like" pattern. Despite the fact that BPDCN may initially appear as a localized skin tumor an aggressive management including allogenic bone marrow transplantation should be considered d'emblée since it is so far the only one option associated with long term survival. This article is protected by copyright. All rights reserved.
    British Journal of Dermatology 05/2013; · 3.76 Impact Factor

Publication Stats

3k Citations
651.90 Total Impact Points


  • 2004–2015
    • Université de Versailles Saint-Quentin
      Versailles, Île-de-France, France
  • 1998–2014
    • Hôpital Ambroise Paré – Hôpitaux universitaires Paris Ile-de-France Ouest
      Billancourt, Île-de-France, France
  • 2013
    • Centre Hospitalier Universitaire de Nantes
      Naoned, Pays de la Loire, France
  • 2008–2013
    • Clinique Ambroise Paré
      Tolosa de Llenguadoc, Midi-Pyrénées, France
    • Université d'Évry-Val-d'Essonne
      • Laboratoire Statistique et Génome
      Évry, Ile-de-France, France
  • 2012
    • CHU Ambroise Paré
      Mons, Walloon Region, Belgium
  • 2011
    • Centre Hospitalier Victor Dupouy
      Argenteuil, Île-de-France, France
    • Centre Hospitalier Universitaire de Montpellier
      Montpelhièr, Languedoc-Roussillon, France
  • 1993–2011
    • Hôpital Ambroise Paré Paul Desbief
      Marsiglia, Provence-Alpes-Côte d'Azur, France
  • 1995–2009
    • Assistance Publique – Hôpitaux de Paris
      Lutetia Parisorum, Île-de-France, France
  • 1989–1992
    • Hôpital Henri Mondor (Hôpitaux Universitaires Henri Mondor)
      • Service de Dermatologie
      Créteil, Ile-de-France, France