1
|
Le Cesne A, Chevreau C, Perrin C, Italiano A, Hervieu A, Blay JY, Piperno-Neumann S, Saada-Bouzid E, Bertucci F, Firmin N, Kalbacher E, Narciso B, Schiffler C, Yara S, Jimenez M, Bouvier C, Vidal V, Chabaud S, Duffaud F. Regorafenib in patients with relapsed advanced or metastatic chordoma: results of a non-comparative, randomised, double-blind, placebo-controlled, multicentre phase II study. ESMO Open 2023; 8:101569. [PMID: 37285716 DOI: 10.1016/j.esmoop.2023.101569] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 04/10/2023] [Accepted: 04/24/2023] [Indexed: 06/09/2023] Open
Abstract
BACKGROUND REGOBONE multicohort study explored the efficacy and safety of regorafenib for patients with advanced bone sarcomas; this report details the cohort of patients with relapsed advanced or metastatic chordoma. METHODS Patients with relapsed chordoma progressing despite 0-2 prior lines of systemic therapy, were randomised (2 : 1) to receive regorafenib (160 mg/day, 21/28 days) or placebo. Patients on placebo could cross over to receive regorafenib after centrally-confirmed progression. The primary endpoint was the progression-free rate at 6 months (PFR-6) (by RECIST 1.1). With one-sided α of 0.05, and 80% power, at least 10/24 progression-free patients at 6 months (PFR-6) were needed for success. RESULTS From March 2016 to February 2020, 27 patients were enrolled. A total of 23 patients were assessable for efficacy: 7 on placebo, 16 on regorafenib, 16 were men, median age was 66 (32-85) years. At 6 months, in the regorafenib arm, 1 patient was not assessable, 6/14 were non-progressive (PFR-6: 42.9%; one-sided 95% CI = 20.6) 3/14 discontinued regorafenib due to toxicity; and in the placebo arm, 2/5 patients were non-progressive (PFR-6: 40.0%; one-sided 95% CI = 7.6), 2 were non-assessable. Median progression-free survival was 8.2 months (95% CI 4.5-12.9 months) on regorafenib and 10.1 months (95% CI 0.8 months-non evaluable [NE]) on placebo. Median overall survival rates were 28.3 months (95% CI 14.8 months-NE) on regorafenib but not reached in placebo arm. Four placebo patients crossed over to receive regorafenib after centrally-confirmed progression. The most common grade ≥3 regorafenib-related adverse events were hand-foot skin reaction (22%), hypertension (22%), pain (22%), and diarrhoea (17%), with no toxic death. CONCLUSION This study failed to show any signal of benefit for regorafenib in patients with advanced/metastatic recurrent chordoma.
Collapse
Affiliation(s)
- A Le Cesne
- Medical Oncology Department, Gustave Roussy, Villejuif
| | - C Chevreau
- Medical Oncology Department, Institut Universitaire de Cancérologie de Toulouse, Oncopole, Toulouse
| | - C Perrin
- Medical Oncology Unit, Centre Eugène Marquis, Rennes
| | - A Italiano
- Medical Oncology Department, Institut Bergonié, Bordeaux
| | - A Hervieu
- Medical Oncology Department, Centre Georges Francois Leclerc, Dijon
| | - J Y Blay
- Medical Oncology Department, Centre Léon Bérard, Lyons. https://twitter.com/jeanyvesblay
| | | | - E Saada-Bouzid
- Medical Oncology Department, Centre Antoine Lacassagne, Nice
| | - F Bertucci
- Medical Oncology Department, Institut Paoli Calmettes, Marseille
| | - N Firmin
- Medical Oncologie Department, Centre Valdorelle, Montpellier
| | - E Kalbacher
- Medical Oncology Department, CHU J Minjoz, Besançon
| | - B Narciso
- Medical Oncology Department, CHU Bretonneau, Tours
| | - C Schiffler
- Department of Statistics, Centre Léon Bérard, Lyons
| | | | | | - C Bouvier
- Aix Marseille Univ, APHM Hopital La Timone, Pathology Department, Marseille
| | - V Vidal
- Aix Marseille Univ, APHM Hopital La Timone, Radiology Department, Marseille
| | - S Chabaud
- Department of Statistics, Centre Léon Bérard, Lyons
| | - F Duffaud
- Aix Marseille University (AMU), APHM Hopital La Timone, Medical Oncology Unit, APHM, Marseille, France.
| |
Collapse
|
2
|
Bouvier C, Souedet N, Levy J, Jan C, You Z, Herard AS, Mergoil G, Rodriguez BH, Clouchoux C, Delzescaux T. Reduced and stable feature sets selection with random forest for neurons segmentation in histological images of macaque brain. Sci Rep 2021; 11:22973. [PMID: 34836996 PMCID: PMC8626511 DOI: 10.1038/s41598-021-02344-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 10/27/2021] [Indexed: 01/01/2023] Open
Abstract
In preclinical research, histology images are produced using powerful optical microscopes to digitize entire sections at cell scale. Quantification of stained tissue relies on machine learning driven segmentation. However, such methods require multiple additional information, or features, which are increasing the quantity of data to process. As a result, the quantity of features to deal with represents a drawback to process large series or massive histological images rapidly in a robust manner. Existing feature selection methods can reduce the amount of required information but the selected subsets lack reproducibility. We propose a novel methodology operating on high performance computing (HPC) infrastructures and aiming at finding small and stable sets of features for fast and robust segmentation of high-resolution histological images. This selection has two steps: (1) selection at features families scale (an intermediate pool of features, between spaces and individual features) and (2) feature selection performed on pre-selected features families. We show that the selected sets of features are stables for two different neuron staining. In order to test different configurations, one of these dataset is a mono-subject dataset and the other is a multi-subjects dataset to test different configurations. Furthermore, the feature selection results in a significant reduction of computation time and memory cost. This methodology will allow exhaustive histological studies at a high-resolution scale on HPC infrastructures for both preclinical and clinical research.
Collapse
Affiliation(s)
- C Bouvier
- CEA, CNRS, MIRCen, Laboratoire Des Maladies Neurodégénératives, Université Paris-Saclay, Fontenay-aux-Roses, France
- Witsee, Paris, France
| | - N Souedet
- CEA, CNRS, MIRCen, Laboratoire Des Maladies Neurodégénératives, Université Paris-Saclay, Fontenay-aux-Roses, France
| | - J Levy
- Service de Médecine Physique Et de Réadaptation - APHP Hôpital Raymond Poincaré, Garches, France
- UMR 1179, Handicap Neuromusculaire - INSERM-UVSQ, Montigny le Bretonneux, France
| | - C Jan
- CEA, CNRS, MIRCen, Laboratoire Des Maladies Neurodégénératives, Université Paris-Saclay, Fontenay-aux-Roses, France
| | - Z You
- CEA, CNRS, MIRCen, Laboratoire Des Maladies Neurodégénératives, Université Paris-Saclay, Fontenay-aux-Roses, France
- Shaanxi Key Laboratory for Network Computing and Security Technology, School of Computer Science and Engineering, Xi'an University of Technology, Xi'an, China
| | - A-S Herard
- CEA, CNRS, MIRCen, Laboratoire Des Maladies Neurodégénératives, Université Paris-Saclay, Fontenay-aux-Roses, France
| | | | | | - C Clouchoux
- CEA, CNRS, MIRCen, Laboratoire Des Maladies Neurodégénératives, Université Paris-Saclay, Fontenay-aux-Roses, France
- Witsee, Paris, France
| | - T Delzescaux
- CEA, CNRS, MIRCen, Laboratoire Des Maladies Neurodégénératives, Université Paris-Saclay, Fontenay-aux-Roses, France.
| |
Collapse
|
3
|
Blay JY, Casali P, Bouvier C, Dehais C, Galloway I, Gietema J, Halámková J, Hindi N, Idbaih A, Kinloch E, Klümpen HJ, Kolarova T, Kopeckova K, Lovey J, Magalhaes M, Oselin K, Piperno-Neumann S, Ravnsbaek A, Rogasik M, Safwat A, Scheipl S, Seckl M, Taylor J, Temnyk M, Trama A, Urbonas M, Wartenberg M, Weinman A. European Reference Network for rare adult solid cancers, statement and integration to health care systems of member states: a position paper of the ERN EURACAN. ESMO Open 2021; 6:100174. [PMID: 34139485 PMCID: PMC8219752 DOI: 10.1016/j.esmoop.2021.100174] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 05/12/2021] [Accepted: 05/13/2021] [Indexed: 11/04/2022] Open
Affiliation(s)
- J-Y Blay
- Department of Medical Oncology, Centre Leon Berard & Centre de Recherche en Cancérologie de Lyon (CRCL) & Université Claude Bernard Lyon 1, Lyon, France.
| | - P Casali
- Department of Medical Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori and University of Milan, Milan, Italy
| | - C Bouvier
- Neuroendocrine Cancer Unit, Royal Free Hospital, London, UK
| | - C Dehais
- Sorbonne Université, Inserm, CNRS, UMR S 1127, Institut du Cerveau, ICM, AP-HP, Hôpitaux Universitaires La Pitié Salpêtrière - Charles Foix, Service de Neurologie 2-Mazarin, Paris, France
| | - I Galloway
- Melanoma Patient Network Europe, OcuMel, Birmingham, UK
| | - J Gietema
- Department of Medical Oncology, University Medical Centre Groningen, Groningen, The Netherlands
| | - J Halámková
- Department of Comprehensive Cancer Care, Masaryk Memorial Cancer Institute, Brno, Czech Republic
| | - N Hindi
- Institute of Biomedicine of Sevilla (IBIS, HUVR, CSIC, Universidad de Sevilla), Virgen, Virgen del Rocío University Hospital, Seville, Spain
| | - A Idbaih
- Sorbonne Université, Inserm, CNRS, UMR S 1127, Institut du Cerveau, ICM, AP-HP, Hôpitaux Universitaires La Pitié Salpêtrière - Charles Foix, Service de Neurologie 2-Mazarin, Paris, France
| | | | - H-J Klümpen
- Department of Medical Oncology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - T Kolarova
- International Neuroendocrine Cancer Alliance, Boston, USA
| | - K Kopeckova
- Department of Oncology, Second Faculty of Medicine, Charles University and Motol University Hospital, Prague, Czech Republic
| | - J Lovey
- National Institute of Oncology, Budapest, Hungary
| | - M Magalhaes
- Oncology Department, Centro Hospitalar e Universitário Universitário do Porto, Porto, Portugal
| | - K Oselin
- Department of Chemotherapy, Clinic of Haematology and Oncology, North Estonia Medical Centre Foundation, Tallinn, Estonia
| | | | - A Ravnsbaek
- Oncology Department, and Danish Centre for Particle Therapy, University Hospital, Aarhus, Denmark
| | - M Rogasik
- Research and Innovation Department, Centre Léon Bérard, Lyon, France
| | - A Safwat
- Oncology Department, and Danish Centre for Particle Therapy, University Hospital, Aarhus, Denmark
| | - S Scheipl
- Medical University of Graz, Graz, Austria
| | - M Seckl
- Department of Medical Oncology, Charing Cross Hospital Campus of Imperial College London, London, UK
| | - J Taylor
- Thyroid Cancer Alliance, Rotterdam, The Netherlands
| | - M Temnyk
- Maria Skłodowska Curie Institute, Warsaw, Poland
| | - A Trama
- Department of Medical Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori and University of Milan, Milan, Italy
| | - M Urbonas
- Lithuanian University of Health Sciences, Department of Neurosurgery, Kaunas, Lithuania
| | | | - A Weinman
- EURORDIS-Rare Diseases Europe (European Patient Organisation for Rare Diseases)
| |
Collapse
|
4
|
Bouaoud J, Larousserie F, Galmiche-Rolland L, Bouvier C, Picard A, Khonsari RH. Protuberant fibro-osseous lesion of the temporal bone: report of four cases and review of the literature. Int J Oral Maxillofac Surg 2021; 50:1566-1570. [PMID: 33865660 DOI: 10.1016/j.ijom.2021.03.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/13/2021] [Accepted: 03/01/2021] [Indexed: 11/26/2022]
Abstract
'Bullough lesions', also referred to as protuberant fibro-osseous lesions (PFOL), are rare temporal bone lesions initially described in 1999. Since only 12 cases have been reported, several key issues, such as their origin and recommended management strategies, remain unresolved. This article reports the largest cohort included in the literature to date, comprising four patients with PFOL. PFOL appears to be characterized by female and right-side predominance. These lesions were consistently located regarding the mastoid, generally diagnosed in early adulthood, without functional symptoms, and were always fibro-osseous. Invasive/malignant features were not found on imaging or histology. The main differential diagnosis was malignant low-grade parosteal osteosarcoma. Clinical examination and computed tomography images provided strong elements supporting the diagnosis of PFOL. Biopsy allowed molecular biology investigations (MDM2 and CDK4 amplification), in order to rule out low-grade parosteal osteosarcoma.
Collapse
Affiliation(s)
- J Bouaoud
- Service de Chirurgie Maxillo-faciale et Chirurgie Plastique, Hôpital Necker - Enfants Malades, Assistance Publique - Hôpitaux de Paris, Université de Paris, Paris, France; Service de Chirurgie Maxillo-faciale et Stomatologie, Hôpital Pitié-Salpêtrière, Assistance Publique - Hôpitaux de Paris, Sorbonne Université, Paris, France.
| | - F Larousserie
- Service d'Anatomopathologie, Hôpital Cochin - Port-Royal, Assistance Publique - Hôpitaux de Paris, Université de Paris, Paris, France
| | - L Galmiche-Rolland
- Service d'Anatomopathologie, Hôpital Necker - Enfants Malades, Assistance Publique - Hôpitaux de Paris, Université de Paris, Paris, France
| | - C Bouvier
- Service d'Anatomopathologie, Hôpital La Timone, APHM, Marseille, France
| | - A Picard
- Service de Chirurgie Maxillo-faciale et Chirurgie Plastique, Hôpital Necker - Enfants Malades, Assistance Publique - Hôpitaux de Paris, Université de Paris, Paris, France
| | - R H Khonsari
- Service de Chirurgie Maxillo-faciale et Chirurgie Plastique, Hôpital Necker - Enfants Malades, Assistance Publique - Hôpitaux de Paris, Université de Paris, Paris, France
| |
Collapse
|
5
|
Duffaud F, Blay JY, Mir O, Chevreau C, Rouquette PB, Kalbacher E, Penel N, Perrin C, Laurence V, Bompas E, Saada-Bouzid E, Delcambre C, Bertucci F, Cancel M, Schiffler C, Monard L, Bouvier C, Vidal V, Gaspar N, Chabaud S. LBA68 Results of the randomized, placebo (PL)-controlled phase II study evaluating the efficacy and safety of regorafenib (REG) in patients (pts) with metastatic relapsed Ewing sarcoma (ES), on behalf of the French Sarcoma Group (FSG) and UNICANCER. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.2309] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
|
6
|
Richert I, Bouvier C, Gomez-Brouchet A, De Pinieux GDB, Marie K, Blay JY, Dutour A. The immune landscape of chondrosarcoma reveals an anti inflammatory environment. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz283.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
7
|
Duffaud F, Blay JY, Italiano A, Bompas E, Rios M, Penel N, Mir O, Piperno-Neumann S, Chevreau C, Delcambre C, Bertucci F, Boudou Rouquette P, Vegas H, Perrin C, Thyss A, Schiffler C, Monard L, Bouvier C, Vidal V, Chabaud S. Results of the randomized, placebo (PL)-controlled phase II study evaluating the efficacy and safety of regorafenib (REG) in patients (pts) with locally advanced (LA) or metastatic relapsed chondrosarcoma (CS), on behalf of the French Sarcoma Group (FSG) and UNICANCER. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz394.088] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
8
|
Baudet M, Daugareil C, Laulom P, Bouvier C, Hubert J. [Therapeutic education in primary cardiovascular prevention]. Ann Cardiol Angeiol (Paris) 2019; 68:49-52. [PMID: 30686470 DOI: 10.1016/j.ancard.2018.08.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Accepted: 08/24/2018] [Indexed: 06/09/2023]
Abstract
BACKGROUND As primary prevention against cardiovascular diseases, Patient Therapeutic Education helps to develop a protective lifestyle within a socioeconomic context where risk factors abound. PATIENTS AND METHODS Patient Therapeutic Education offers those eager to protect their cardiovascular health a program of six workshops. Upon enrolment, a Program aide conducts an educational diagnosis with the patient, specific to each workshop theme, so that he might understand the clinical, socio-professional, cognitive and psycho-affective dimensions. An evaluation of each workshop is requested from participants in the form of open and closed questions. RESULTS The study comprised 2225people, majority women (79%), relatively old (age 63.9for women, 66.3for men), most often retired (65%). An analysis of the educational diagnosis notes a great frequency of classic risk factors; a good knowledge of the factors favoring them contrasting with the weak means implemented in everyday life to reduce their impact; the great majority of participants (68%) believe they have a well balanced diet; patients are greatly involved in their own health, with a slight external locus involving the general practitioner, the immediate entourage and society. The notes of the evaluation are usually maximum. CONCLUSION Patient Therapeutic Education arouses strong interest in the public, allows a personalized approach that optimizes learning, increases knowledge and facilitates the use of new protective practices.
Collapse
Affiliation(s)
- M Baudet
- Maison du cœur, centre hospitalier de Dax Côte d'Argent, 7, rue de Borda, 40300 Dax, France.
| | - C Daugareil
- Maison du cœur, centre hospitalier de Dax Côte d'Argent, 7, rue de Borda, 40300 Dax, France
| | - P Laulom
- Maison du cœur, centre hospitalier de Dax Côte d'Argent, 7, rue de Borda, 40300 Dax, France
| | - C Bouvier
- Maison du cœur, centre hospitalier de Dax Côte d'Argent, 7, rue de Borda, 40300 Dax, France
| | - J Hubert
- Maison du cœur, centre hospitalier de Dax Côte d'Argent, 7, rue de Borda, 40300 Dax, France
| |
Collapse
|
9
|
Bernard F, Troude L, Bouvier C, Roche PH. Le granulome réparateur à cellules géantes : un diagnostic différentiel exceptionnel pour une lésion lytique de l’os temporal. Neurochirurgie 2018. [DOI: 10.1016/j.neuchi.2018.05.060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
10
|
Salas S, Resseguier N, Blay JY, Le Cesne A, Italiano A, Chevreau C, Rosset P, Isambert N, Soulie P, Cupissol D, Delcambre C, Bay JO, Dubray-Longeras P, Krengli M, De Bari B, Villa S, Kaanders JHAM, Torrente S, Pasquier D, Thariat JO, Myroslav L, Sole CV, Dincbas HF, Habboush JY, Zilli T, Dragan T, Khan R K, Ugurluer G, Cena T, Duffaud F, Penel N, Bertucci F, Ranchere-Vince D, Terrier P, Bonvalot S, Macagno N, Lemoine C, Lae M, Coindre JM, Bouvier C. Prediction of local and metastatic recurrence in solitary fibrous tumor: construction of a risk calculator in a multicenter cohort from the French Sarcoma Group (FSG) database. Ann Oncol 2018; 28:1979-1987. [PMID: 28838212 DOI: 10.1093/annonc/mdx250] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Background Solitary fibrous tumors (SFT) are rare unusual ubiquitous soft tissue tumors that are presumed to be of fibroblastic differentiation. At present, the challenge is to establish accurate prognostic factors. Patients and methods A total of 214 consecutive patients with SFT diagnosed in 24 participating cancer centers were entered into the European database (www.conticabase.org) to perform univariate and multivariate analysis for overall survival (OS), local recurrence incidence (LRI) and metastatic recurrence incidence (MRI) by taking competing risks into account. A prognostic model was constructed for LRI and MRI. Internal and external validations of the prognostic models were carried out. An individual risk calculator was carried out to quantify the risk of both local and metastatic recurrence. Results We restricted our analysis to 162 patients with local disease. Twenty patients (12.3%) were deceased at the time of analysis and the median OS was not reached. The LRI rates at 10 and 20 years were 19.2% and 38.6%, respectively. The MRI rates at 10 and 20 years were 31.4% and 49.8%, respectively. Multivariate analysis retained age and mitotic count tended to significance for predicting OS. The factors influencing LRI were viscera localization, radiotherapy and age. Mitotic count, tumor localization other than limb and age had independent values for MRI. Three prognostic groups for OS were defined based on the number of unfavorable prognostic factors and calculations were carried out to predict the risk of local and metastatic recurrence for individual patients. Conclusion LRI and MRI rates increased between 10 and 20 years so relapses were delayed, suggesting that long-term monitoring is useful. This study also shows that different prognostic SFT sub-groups could benefit from different therapeutic strategies and that use of a survival calculator could become standard practice in SFTs to individualize treatment based on the clinical situation.
Collapse
Affiliation(s)
- S Salas
- Department of Medicine, Timone Hospital, Marseille.,Aix Marseille University, Marseille
| | - N Resseguier
- Support Unit for Clinical Research and Economic Evaluatin, Timone Hospital, Marseille
| | - J Y Blay
- Department of Medicine, Leon Berard Center, Lyon
| | - A Le Cesne
- Department of Medicine, Gustave Roussy Institute, Villejuif
| | - A Italiano
- Department of Medicine, Bergonié Institute, Bordeaux
| | - C Chevreau
- Department of Medicine, Claudius Regaud Institute, Toulouse
| | - P Rosset
- Department of Medicine, CHU, Tours
| | - N Isambert
- Department of Medicine, Georges-François Leclerc Institute, Dijon
| | - P Soulie
- Department of Medicine, Paul Papin Institute, Angers
| | - D Cupissol
- Department of Medicine, Val d'Aurelle Institute, Montpellier
| | - C Delcambre
- Department of Medicine, François-Baclesse Institute, Caen
| | - J O Bay
- Department of Medicine, Jean Perrin Institute, Clermont-Ferrand, France
| | - P Dubray-Longeras
- Department of Medicine, Jean Perrin Institute, Clermont-Ferrand, France
| | - M Krengli
- Department of Radiotherapy, University Hospital, Novara, Italy
| | - B De Bari
- Department of Radiotherapy, CHU Vaudois, Lausanne, Switzerland
| | - S Villa
- Department of Radiotherapy, Catalan Institute of Oncology, Badalona Catalonia, Spain
| | - J H A M Kaanders
- Department of Radiotherapy, Radboud University Medical Center, Nijmegen, The Netherlands
| | - S Torrente
- Department of Radiotherapy, University Hospital, Novara, Italy
| | - D Pasquier
- Department of Radiotherapy, Centre Oscar Lambret, Lille
| | - J O Thariat
- Department of Radiotherapy, Centre Antoine-Lacassagne, Nice, France
| | - L Myroslav
- Department of Radiotherapy, Rambam HCC, Haifa, Israel
| | - C V Sole
- Department of Radiotherapy, Clinica Instituto de Radiomedicina (IRAM), Santiago, Chile
| | - H F Dincbas
- Department of Radiotherapy, Cerrahpasa Medical Faculty, Istanbul, Turkey
| | - J Y Habboush
- Department of Radiotherapy, Mayo Clinic, Jacksonville, USA
| | - T Zilli
- Department of Radiotherapy, HUG, Geneva, Switzerland
| | - T Dragan
- Department of Radiotherapy, Institut J. Bordet Brussels, Brussels, Belgium
| | - K Khan R
- Department of Radiotherapy, CHVR, Sion, Switzerland
| | - G Ugurluer
- Department of Radiotherapy, Adana Hospital, Adana, Turkey
| | - T Cena
- Department of Medical Statistics, University of Piemonte Orientale, Novara, Italy
| | - F Duffaud
- Department of Medicine, Timone Hospital, Marseille
| | - N Penel
- Department of Medicine, Oscar Lambret Institute, Lille
| | - F Bertucci
- Department of Medicine, Paoli Calmette Institute, Marseille
| | | | - P Terrier
- Department of Pathology, Gustave Roussy Institute, Villejuif
| | - S Bonvalot
- Department of Surgery, Institut Curie, PSL University, Paris
| | - N Macagno
- Department of Pathology, Timone Hospital, Marseille
| | - C Lemoine
- Support Unit for Clinical Research and Economic Evaluatin, Timone Hospital, Marseille
| | - M Lae
- Department of Pathology, Curie Institute, Paris
| | - J M Coindre
- Department of Pathology, Bergonié Institute, Bordeaux.,University Victor Ségalen, Bordeaux, France
| | - C Bouvier
- Aix Marseille University, Marseille.,Department of Pathology, Timone Hospital, Marseille
| |
Collapse
|
11
|
Norton J, David M, Gandubert C, Bouvier C, Gutierrez LA, Frangeuil A, Macgregor A, Oude Engberink A, Mann A, Capdevielle D. Détection par le médecin généraliste des troubles psychiatriques courants selon l’auto-questionnaire diagnostique le Patient Health Questionnaire : dix ans après, le dispositif du médecin traitant a-t-il modifié la donne ? Encephale 2018; 44:22-31. [DOI: 10.1016/j.encep.2016.07.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 06/30/2016] [Accepted: 07/01/2016] [Indexed: 10/20/2022]
|
12
|
Jervis N, Bouvier C. One size fits no-one: A response to national strategy for cancer care. Eur J Cancer 2017. [DOI: 10.1016/s0959-8049(17)30481-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
13
|
El Houmami N, Minodier P, Bouvier C, Seligmann H, Jouve JL, Raoult D, Fournier PE. Primary subacute epiphyseal osteomyelitis caused by Mycobacterium species in young children: a modern diagnostic approach. Eur J Clin Microbiol Infect Dis 2017; 36:771-777. [PMID: 28054229 DOI: 10.1007/s10096-016-2886-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Accepted: 12/19/2016] [Indexed: 11/30/2022]
Abstract
Primary epiphyseal subacute osteomyelitis (PESAO) caused by Mycobacterium species in young children is poorly recognized. We aimed to define the spectrum of this uncommon condition and to propose a novel diagnostic approach. We performed a systematic review of the literature on the PubMed website by selecting all reports of isolated infantile PESAO caused by Mycobacterium species since 1975. We identified 350 citations, of which 174 were assessed for eligibility based on title and abstract. The full text of 81 eligible citations was screened, and relevant data of 15 children under 4 years of age with mycobacterial PESAO were extracted. These data were pooled with those from our Institution. Data from 16 children were reviewed. The median age was 16 ± 7 months and the male:female ratio 1.7. The knee was the most common infection site (94%). The diagnosis of mycobacterial disease was delayed in all cases (range, 2 weeks to 6 months), and initially presumed by histology in 15 children (94%). Microbiologically proven diagnosis was confirmed by bone cultures in 8 of the 15 children (53%), and by specific PCR in 2 of the 3 culture-negative bone specimens (67%). Three children experienced long-term orthopedic complications despite surgical drainage and prolonged antimycobacterial regimens. All recently reported cases came from high-burden tuberculosis areas. Mycobacterium species contribute to the burden of infantile PESAO in endemic tuberculosis areas and may cause growth disturbances. We argue in favor of the early recognition of mycobacterial disease by specific molecular assays in children with infantile PESAO living in high-burden areas.
Collapse
Affiliation(s)
- N El Houmami
- Research Unit on Infectious and Emerging Tropical Diseases (URMITE), Inserm U1095, UMR 63, CNRS 7278, IRD 198, University Hospital Institute Méditerranée Infection, Aix-Marseille University, Marseille, France. .,Department of Pediatric Orthopedics, University La Timone Children's Hospital, Aix-Marseille University, Marseille, France.
| | - P Minodier
- Department of Pediatric Emergency Medicine, University North Hospital, APHM Public Hospitals, Aix-Marseille University, Marseille, France
| | - C Bouvier
- Department of Pathology, University La Timone Hospital, APHM Public Hospitals, Aix-Marseille University, Marseille, France
| | - H Seligmann
- Research Unit on Infectious and Emerging Tropical Diseases (URMITE), Inserm U1095, UMR 63, CNRS 7278, IRD 198, University Hospital Institute Méditerranée Infection, Aix-Marseille University, Marseille, France
| | - J-L Jouve
- Department of Pediatric Orthopedics, University La Timone Children's Hospital, Aix-Marseille University, Marseille, France
| | - D Raoult
- Research Unit on Infectious and Emerging Tropical Diseases (URMITE), Inserm U1095, UMR 63, CNRS 7278, IRD 198, University Hospital Institute Méditerranée Infection, Aix-Marseille University, Marseille, France
| | - P-E Fournier
- Research Unit on Infectious and Emerging Tropical Diseases (URMITE), Inserm U1095, UMR 63, CNRS 7278, IRD 198, University Hospital Institute Méditerranée Infection, Aix-Marseille University, Marseille, France
| |
Collapse
|
14
|
Bernard F, Troude L, Bouvier C, Roche PH. "Giant cell reparative tumor: An exceptional differential diagnosis for a lytic lesion of the temporal bone". Neurochirurgie 2016; 62:332-335. [PMID: 27866665 DOI: 10.1016/j.neuchi.2016.09.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Revised: 09/04/2016] [Accepted: 09/23/2016] [Indexed: 11/30/2022]
Abstract
BACKGROUND AND IMPORTANCE Giant cell reparative granuloma is a very rare benign osteolytic lesion. It typically arises in the mandible and rarely involves the skull. CLINICAL PRESENTATION A 25-year-old male was admitted in August 2002 for a painless left preauricular mass of several months duration. CT scan revealed an osteolytic extradural lesion located in the temporal bone, with extension to infratemporal fossa. We performed a surgical partial resection of the tumour via a frontotemporal approach. At 36 months after surgery, the lesion continued growth and subsequently we decided to perform a preauricular infratemporal approach. After a ten year-follow-up, the patient remained asymptomatic and a small tumour remnant was visible and stable. CONCLUSION Giant cell reparative granulomas that originate from the temporal bone are exceptional. There are no typical radiological features of this disease. Diagnosis is confirmed by analysis of the surgical specimen. Tumor growth requires surgical resection.
Collapse
Affiliation(s)
- F Bernard
- Department of Neurosurgery, CHU d'Angers, 49100 Angers, France.
| | - L Troude
- Department of Neurosurgery, hôpital Nord, CHU AP-HM, 13015 Marseille, France.
| | - C Bouvier
- Department of Pathology, CHU AP-HM la Timone, 13015 Marseille, France.
| | - P-H Roche
- Department of Neurosurgery, hôpital Nord, CHU AP-HM, 13015 Marseille, France.
| |
Collapse
|
15
|
Bouvy M, Got P, Domaizon I, Pagano M, Leboulanger C, Bouvier C, Carré C, Roques C, Dupuy C. Plankton communities in the five Iles Eparses (Western Indian Ocean) considered to be pristine ecosystems. Acta Oecologica 2016. [DOI: 10.1016/j.actao.2015.10.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
16
|
Colin C, Padovani L, Chappé C, Mercurio S, Scavarda D, Loundou A, Frassineti F, André N, Bouvier C, Korshunov A, Lena G, Figarella-Branger D. Outcome analysis of childhood pilocytic astrocytomas: a retrospective study of 148 cases at a single institution. Neuropathol Appl Neurobiol 2013; 39:693-705. [DOI: 10.1111/nan.12013] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2012] [Accepted: 10/25/2012] [Indexed: 01/01/2023]
Affiliation(s)
| | | | | | | | - D. Scavarda
- Paediatric Neurosurgery Unit; Assistance Publique-Hôpitaux de Marseille, La Timone Hospital; Marseille; France
| | - A. Loundou
- Epidemiology Unit, DRRC; Assistance Publique-Hôpitaux de Marseille, La Timone Hospital; Marseille; France
| | | | - N. André
- Paediatric Oncology and Hematology Unit; Assistance Publique-Hôpitaux de Marseille, La Timone Hospital; Marseille; France
| | | | | | - G. Lena
- Paediatric Neurosurgery Unit; Assistance Publique-Hôpitaux de Marseille, La Timone Hospital; Marseille; France
| | | |
Collapse
|
17
|
Maurice CF, Bouvier C, de Wit R, Bouvier T. Linking the lytic and lysogenic bacteriophage cycles to environmental conditions, host physiology and their variability in coastal lagoons. Environ Microbiol 2013; 15:2463-75. [PMID: 23581698 DOI: 10.1111/1462-2920.12120] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2012] [Accepted: 03/05/2013] [Indexed: 01/21/2023]
Abstract
Changes in environmental conditions and prokaryote physiology can strongly affect the dynamics of both the lysogenic and lytic bacteriophage replication cycles in aquatic systems. However, it remains unclear whether it is the nature, amplitude or frequency of these changes that alter the phage replication cycles. We performed an annual survey of three Mediterranean lagoons with contrasting levels of chlorophyll a concentration and salinity to explore how these cues and their variability influence either replication cycle. The lytic cycle was always detected and showed seasonal patterns, whereas the lysogenic cycle was often undetected and highly variable. The lytic cycle was influenced by environmental and prokaryotic physiological cues, increasing with concentrations of dissolved organic carbon, chlorophyll a, and the proportion of respiring cells, and decreasing with the proportion of damaged cells. In contrast, lysogeny was not explained by the magnitude of any environmental or physiological parameter, but increased with the amplitude of change in prokaryote physiology. Our study suggests that both cycles are regulated by distinct factors: the lytic cycle is dependent on environmental parameters and host physiology, while lysogeny is dependent on the variability of prokaryote physiology. This could lead to the contrasting patterns observed between both cycles in aquatic systems.
Collapse
Affiliation(s)
- C F Maurice
- Université de Montpellier 2, Laboratoire Ecologie des Systèmes Marins Côtiers ECOSYM UMR5119 CNRS-Ifremer-IRD, case 093. Place Eugène Bataillon, 34095, Montpellier cedex 5, France
| | | | | | | |
Collapse
|
18
|
Bouvier C, Maues de Paula A, Roche PH, Chagnaud C, Figarella-Branger D. Tumori del sistema nervoso periferico. Neurologia 2013. [DOI: 10.1016/s1634-7072(13)64487-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
|
19
|
|
20
|
Bélénotti P, Fuentes S, Bannier M, Orfanos S, Bouvier C, Guedj E, Serratrice J, Ene ND, Chinot O, Girard N, Weiller PJ. Fièvre ondulante révélant un xantho-astrocytome pléiomorphe anaplasique. Rev Med Interne 2012. [DOI: 10.1016/j.revmed.2012.10.359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
21
|
Baunin C, Schmidt G, Baumstarck K, Bouvier C, Gentet JC, Aschero A, Ruocco A, Bourlière B, Gorincour G, Desvignes C, Colavolpe N, Bollini G, Auqier P, Petit P. Value of diffusion-weighted images in differentiating mid-course responders to chemotherapy for osteosarcoma compared to the histological response: preliminary results. Skeletal Radiol 2012; 41:1141-9. [PMID: 22318350 DOI: 10.1007/s00256-012-1360-2] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2011] [Revised: 10/01/2011] [Accepted: 01/05/2012] [Indexed: 02/02/2023]
Abstract
BACKGROUND Preoperative diffusion-weighted MRI (DW-MRI) has been described as an efficient method to differentiate good and poor responders to chemotherapy in osteosarcoma patients. A DW-MRI performed earlier during treatment could be helpful in monitoring chemotherapy. OBJECTIVE To assess the accuracy of DW-MRI in evaluating response to chemotherapy in the treatment of osteosarcoma, more specifically at mid-course of treatment. MATERIALS AND METHODS This study was carried out on a prospective series of adolescents treated for long-bone osteosarcoma. MR examinations were performed at diagnosis (MRI-1), at mid-course of chemotherapy (MRI-2), and immediately before surgery (MRI-3). A DW sequence was performed using diffusion gradients of b0 and b900. The apparent diffusion coefficients (ADC1, ADC2, ADC3, respectively), their differentials (ADC2 - ADC1 and ADC3 - ADC1), and their variation (ADC2 - ADC1/ADC1 and ADC3 - ADC1/ADC1) were calculated for each of these three time points. RESULTS Fifteen patients were included. Patients with no increase in ADC showed a poor response to chemotherapy on their histology results. At mid-course, the three calculated values were significantly different between good and poor responders. ADC2 - ADC1 enabled us to detect, with 100% specificity, four out of seven of the poor responders. There was no significant difference in the values at MRI-3 between the two groups. CONCLUSION DW-MRI performed both at baseline and mid-course of neoadjuvant chemotherapy is an efficient method to predict further histological response of osteosarcoma. This method could be used as an early prognostic factor to monitor preoperative chemotherapy.
Collapse
Affiliation(s)
- C Baunin
- Service d'imagerie pédiatrique et prénatale, Hôpital Timone Enfants, 264 Rue Sainte Pierre, 13385, Marseille Cedex 05, France.
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
22
|
Rochelle-Newall EJ, Chu VT, Pringault O, Amouroux D, Arfi R, Bettarel Y, Bouvier T, Bouvier C, Got P, Nguyen TMH, Mari X, Navarro P, Duong TN, Cao TTT, Pham TT, Ouillon S, Torréton JP. Phytoplankton distribution and productivity in a highly turbid, tropical coastal system (Bach Dang Estuary, Vietnam). Mar Pollut Bull 2011; 62:2317-2329. [PMID: 21945560 DOI: 10.1016/j.marpolbul.2011.08.044] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2011] [Revised: 08/26/2011] [Accepted: 08/31/2011] [Indexed: 05/31/2023]
Abstract
Phytoplankton diversity, primary and bacterial production, nutrients and metallic contaminants were measured during the wet season (July) and dry season (March) in the Bach Dang Estuary, a sub-estuary of the Red River system, Northern Vietnam. Using canonical correspondence analysis we show that phytoplankton community structure is potentially influenced by both organometallic species (Hg and Sn) and inorganic metal (Hg) concentrations. During March, dissolved methylmercury and inorganic mercury were important factors for determining phytoplankton community composition at most of the stations. In contrast, during July, low salinity phytoplankton community composition was associated with particulate methylmercury concentrations, whereas phytoplankton community composition in the higher salinity stations was more related to dissolved inorganic mercury and dissolved mono and tributyltin concentrations. These results highlight the importance of taking into account factors other than light and nutrients, such as eco-toxic heavy metals, in understanding phytoplankton diversity and activity in estuarine ecosystems.
Collapse
Affiliation(s)
- E J Rochelle-Newall
- ECOSYM, UMR 5119 (CNRS-IRD-UM2-IFREMER), Université Montpellier II, Case 093, Place Bataillon, 34095 Montpellier, France.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
23
|
Bouvier C, Ghali O, Mandier N, Brunner M, Albiges-Rizo C, Salas S, Bouvard D. Analyse phénotypique d’un modèle murin d’ostéosarcome. Ann Pathol 2011. [DOI: 10.1016/j.annpat.2011.09.101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
|
24
|
Bouvy M, Bettarel Y, Bouvier C, Domaizon I, Jacquet S, Le Floc'h E, Montanié H, Mostajir B, Sime-Ngando T, Torréton JP, Vidussi F, Bouvier T. Trophic interactions between viruses, bacteria and nanoflagellates under various nutrient conditions and simulated climate change. Environ Microbiol 2011; 13:1842-57. [DOI: 10.1111/j.1462-2920.2011.02498.x] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
25
|
Abstract
BACKGROUND AND PURPOSE In the 2007 WHO classification, glioblastomas are classified among the group of astrocytic tumors. They are highly malignant (grade IV). This group of tumors is morphologically heterogeneous. The WHO distinguishes between clinico-pathological entities, variants of entities and histological pattern. Variants are defined as being reliably indentified histologically and having some relevance for clinical outcome but as still being part of a previously defined overarching entity. Patterns of differentiation are identifiable by histological appearances but without clinical or pathological significance. METHODS The description of the histological and immunohistochemical features is based on the 2007 WHO classification. RESULTS In addition to the classic form of glioblastoma, two variants exist: the giant cell GBM and the gliosarcoma. The first but not the second would have a better outcome than the classic glioblastoma. The WHO classification also distinguishes several patterns of differentiation: small cells glioblastoma; glioblastoma with lipidized cells; glioblastoma with oligodendroglioma component; glioblastoma with heterologous differentiation. These patterns have to be recognized because they represent sometimes a diagnostic challenge. GFAP, Olig2 and Mib1/Ki67 are the most relevant immunohistochemical markers. Diagnostic value of neuronal markers is still controversial. EGFR or p53 expression can be detected and their prognosis value is discussed in this chapter. A systematic analysis of some markers in routine, for example IDH1 or internexin-a, could help to define more homogeneous groups of patients.
Collapse
|
26
|
De La Rosa S, Beltramone M, Bouvier C, Lubrano V, Roche P. Papillomes des plexus choroïde impliquant la citerne cérébello-médullaire : formes topographiques et implications chirurgicales. Neurochirurgie 2010. [DOI: 10.1016/j.neuchi.2010.10.111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
27
|
Figarella-Branger D, Colin C, Tchoghandjian A, Baeza N, Bouvier C. Glioblastomes : oncogenèse et bases biologiques. Neurochirurgie 2010; 56:441-8. [DOI: 10.1016/j.neuchi.2010.07.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2010] [Accepted: 07/01/2010] [Indexed: 01/09/2023]
|
28
|
Leydet-Quilici H, Le Corroller T, Bouvier C, Giorgi R, Argenson JN, Champsaur P, Pham T, de Paula AM, Lafforgue P. Advanced hip osteoarthritis: magnetic resonance imaging aspects and histopathology correlations. Osteoarthritis Cartilage 2010; 18:1429-35. [PMID: 20727415 DOI: 10.1016/j.joca.2010.08.008] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2009] [Revised: 05/19/2010] [Accepted: 08/11/2010] [Indexed: 02/02/2023]
Abstract
OBJECTIVES To correlate magnetic resonance imaging (MRI) aspects of the femoral head with histological findings in advanced hip osteoarthritis (OA), with special emphasis on bone marrow edema (BME). METHODS MRI was performed in patients with advanced hip OA scheduled for hip arthroplasty. Coronal T1-, fat-suppressed T2-, T1 with gadolinium intravenous injection sequences were obtained on a 1.5 T MR-scanner within 1 month before surgery. Coronal MR images corresponding to the ligamentum teres plane were analyzed by two independent readers blinded to histological data. Normal bone marrow, subchondral cyst, subchondral fracture, edema-like, necrosis-like, and necrosis MR patterns were reported on a synthesis scheme. After surgery, the femoral heads specimens were cut through the ligamentum teres plane and histologically analyzed for correlations. RESULTS Twenty-three femoral heads were analyzed (female 56.5%, mean age 64.5 years). Edema-like MR pattern was correlated with histological (H) edema (Kappa (K): 0.77). Necrosis-like MR pattern was correlated with H fibrosis (K: 0.49) and with H necrosis (K: 0.24). Cyst MR pattern was correlated with H bone cysts (K: 0.58). Necrosis MR pattern corresponded to a mixture of histological lesions. Sensitivity and specificity of MRI varied from 26% to 80% and from 86% to 95% respectively. CONCLUSION In advanced hip OA, the so-called "BME" MR lesion corresponds to a combination of edema, fibrosis, and necrosis at histopathology. When the classical "BME" is more specifically separated into edema-like and necrosis-like MR patterns, MR Imaging and histological findings show substantial agreement, with edema-like MR pattern mainly corresponding to histological edema.
Collapse
Affiliation(s)
- H Leydet-Quilici
- Service de Rhumatologie, Hôpital de la Conception, Marseille, France.
| | | | | | | | | | | | | | | | | |
Collapse
|
29
|
Jacopin S, Viehweger E, Glard Y, Launay F, Jouve JL, Bouvier C, Bollini G. Fatal lung metastasis secondary to index finger giant cell tumor in an 8-year-old child. Orthop Traumatol Surg Res 2010; 96:310-3. [PMID: 20488151 DOI: 10.1016/j.otsr.2009.12.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2008] [Revised: 09/25/2009] [Accepted: 12/11/2009] [Indexed: 02/02/2023]
Abstract
We report the case of a 7-year-old girl presenting with giant cell tumor (GCT) of the index finger, complicated by lung metastases. Index disarticulation, pulmonary metastasectomy and chemotherapy failed to produce a cure, and the child died at the age of 8 years after 1 year's evolution. The pulmonary metastases were discovered following hypoxia during initial biopsy. A review of the literature shows this observation to be original, in terms of the patient's age and of the location, onset and fatal outcome of metastasis. The hypoxic episode complicating biopsy raises the issue of early screening for lung metastases in GCT. Pulmonary dissemination of GCT is of severe prognosis.
Collapse
Affiliation(s)
- S Jacopin
- Orthopaedic Surgery Department, Assistance Publique Timone Children's Hospital, Marseille Hospitals Group, 264, rue St-Pierre, 13385 Marseille cedex 5, France.
| | | | | | | | | | | | | |
Collapse
|
30
|
Chikh M, Benyamine A, Ene N, Stanciu R, Belenotti P, Masson E, Serratrice J, Bouvier C, Thomas PA, Bertucci F, Weiller PJ. Une cause rare de médiastinite fibreuse, l’hémangio-endothéliome épithélioïde. Rev Med Interne 2009. [DOI: 10.1016/j.revmed.2009.03.150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
31
|
Coulibaly B, Tasei AM, Payan-Defais MJ, Bouvier C, Trousse D, Doddoli C, Figarella-Branger D. Hémangioendothéliome épithélioïde pulmonaire : à propos de deux observations. Rev Mal Respir 2008; 25:867-70. [DOI: 10.1016/s0761-8425(08)74354-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
32
|
Figarella-Branger D, Colin C, Coulibaly B, Quilichini B, Maues De Paula A, Fernandez C, Bouvier C. Classification histologique et moléculaire des gliomes. Rev Neurol (Paris) 2008; 164:505-15. [DOI: 10.1016/j.neurol.2008.03.011] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2008] [Accepted: 03/17/2008] [Indexed: 12/15/2022]
|
33
|
Salas S, Huynh T, Deville J, Giorgi R, Bollini G, Curvale G, Gentet J, Bui BN, Bouvier C, Duffaud F. A study of 28 flat bone osteosarcomas: Prognostic factors, early and long-term outcome. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.10517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
34
|
Coulibaly B, Gautier G, Fuentes S, Ranque S, Bouvier C. [Degenerating neurocysticercosis cysts: differential diagnosis with cerebral metastasis]. Rev Neurol (Paris) 2008; 164:948-52. [PMID: 18808758 DOI: 10.1016/j.neurol.2008.03.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2007] [Revised: 01/11/2008] [Accepted: 03/25/2008] [Indexed: 10/22/2022]
Abstract
INTRODUCTION Neurocysticercosis is the most common parasitic disease of the central nervous system. It has a worldwide distribution. CASE REPORT We report the case of a 70-year-old woman from Guadeloupe presenting gait abnormalities, impaired ideation, right hemiparesis in a context of weight loss, and fatigue. Blood analyses were normal with neither inflammatory syndrome nor blood hypereosinophilia. Brain computed tomography and magnetic resonance imaging showed hydrocephaly in relation with Sylvius' aqueduc stenosis, and diffuse contrast-enhancing lesions suggesting metastases. Because of clinical symptoms, the patient underwent ventriculostomy; the cerebral spinal fluid examination was normal. Then a frontal biopsy was performed. Histological examination was compatible with neurocysticercosis and confirmed by serology. The patient was successfully treated with albendazole and steroids. CONCLUSION Neurocysticercosis must be considered as a differential diagnosis of cerebral metastasis, especially in patients from endemic countries.
Collapse
Affiliation(s)
- B Coulibaly
- Service d'anatomie pathologique et de neuropathologie, CHU La Timone, 264, rue Saint-Pierre, 13385 Marseille, France.
| | | | | | | | | |
Collapse
|
35
|
Bouvier C, De Paula AM, Fernandez C, Quilichini B, Scavarda D, Gentet JC, Figarella-Branger D. Atypical teratoid/rhabdoid tumour: 7-year event-free survival with gross total resection and radiotherapy in a 7-year-old boy. Childs Nerv Syst 2008; 24:143-7. [PMID: 17968559 DOI: 10.1007/s00381-007-0438-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2007] [Revised: 05/18/2007] [Indexed: 11/25/2022]
Abstract
CASE STUDY We report the case of a 7-year-old boy who presented in 1998 a tumour of the left frontal lobe. Initially diagnosed as anaplastic ependymoma, the boy was treated by gross total resection followed by radiotherapy at the operated site. In July 2005, an orbital tumour was discovered and resected. The tumour was composed of sheets of rhabdoid cells which diffusely expressed vimentin and focally epithelial membrane antigen (EMA) and alpha-smooth actin by immunohistochemistry. The first tumour was re-examined. Small foci of rhabdoid cells were found. Immunohistochemistry anti-INI1 performed on both tumours was negative. Molecular techniques performed on frozen specimen of the orbital tumour confirmed the diagnosis of atypical teratoid/rhabdoid tumour (ATRT). DISCUSSION We discuss the pathological criteria for diagnosis of ATRT and the usefulness of early radiotherapy in the light of the recent literature.
Collapse
Affiliation(s)
- C Bouvier
- Service d'Anatomie Pathologique et de Neuropathologie, CHU Timone, Marseilles, France
| | | | | | | | | | | | | |
Collapse
|
36
|
Laghmari M, Metellus P, Fuentes S, Adetchessi T, Dufour H, Bouvier C, Grisoli F. [Cranial vault chondroma: a case report and literature review]. Neurochirurgie 2007; 53:491-4. [PMID: 18061630 DOI: 10.1016/j.neuchi.2007.09.148] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2006] [Accepted: 09/12/2007] [Indexed: 11/17/2022]
Abstract
Intracranial chondromas are unusual tumors, which most commonly arise from cartilage rets in the synchondrosis at the base of the skull. They are most likely found in the sellar and parasellar regions, usually located extradurally. In rare instances, these tumors originate from the dura mater of the convexity. In these cases their neuroradiological features may mimic other intracranial tumors. We present the case of a 50-year-old male presenting a large parasagittal tumor originating in the frontal convexity. MRI-scans revealed a cavitated tumor strongly enhanced after gadolinium infusion mimicking a parasagittal meningioma. There was no obstruction of the superior sagittal sinus as shown by cerebral angiogram. Total excision was achieved and the postoperative course was uneventful. No complementary treatment was therefore considered. The histological examination diagnosis was chondroma. Radiological workup performed at four years follow-up did not reveal any recurrence of the lesion. Pathogenic, clinico-radiological and therapeutic issues are discussed and the literature reviewed.
Collapse
Affiliation(s)
- M Laghmari
- Département de neurochirurgie, hôpital Avicenne, CHU Ibn-Sina, Rabat, Maroc
| | | | | | | | | | | | | |
Collapse
|
37
|
Colin C, Virard I, Baeza N, Tchoghandjian A, Fernandez C, Bouvier C, Calisti A, Tong S, Durbec P, Figarella-Branger D. Relevance of combinatorial profiles of intermediate filaments and transcription factors for glioma histogenesis. Neuropathol Appl Neurobiol 2007; 33:431-9. [PMID: 17442061 DOI: 10.1111/j.1365-2990.2007.00829.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
In order to define specific markers for histogenesis of three well-characterized subgroups of human gliomas (pilocytic astrocytomas, glioblastoma multiforme and oligodendrogliomas), we studied the expression of relevant markers that characterize gliomagenesis, by immunohistochemistry and in situ hybridization. They include the intermediate filament proteins glial fibrillary acidic protein (GFAP), vimentin and nestin, the transcription factors Olig2, Nkx2.2 and Sox10, and the proteolipid protein transcripts plp/dm20. We show that the three major categories of human gliomas express a combinatorial profile of markers that gives new insights to their histogenesis and may help diagnosis. Pilocytic astrocytomas strongly express GFAP, vimentin, Olig2, Nkx2.2 and Sox10 but not nestin. In contrast, glioblastomas strongly express GFAP, vimentin and nestin but these tumours are heterogeneous regarding the expression of the transcription factors studied. Finally, in oligodendrogliomas, intermediate filament proteins are generally not observed whereas Olig2 was found in almost all tumour cells nuclei while only a subpopulation of tumour cells expressed Nkx2.2 and Sox10.
Collapse
Affiliation(s)
- C Colin
- Laboratoire de Biopathologie de l'Adhésion et de la Signalisation, EA3281, IPHM, Faculté de Médecine Timone, Marseilles, France
| | | | | | | | | | | | | | | | | | | |
Collapse
|
38
|
Salas S, Deville J, Bartoli C, Gaudart J, Bollini G, Curvale G, Gentet J, Duffaud F, Figarella-Branger D, Bouvier C. Immunohistochemical expression of ezrin correlates with Event-free and overall survival in osteosarcomas. J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.10035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
10035 Background: Ezrin is a cytoskeleton linker protein that is actively involved in the metastatic process of cancer cells. We have searched for a pronostic value of ezrin and some of its partners: a-smooth actin and CD44H in 37 patients with an osteosarcoma. Methods: Automate immunohistochemistry (IHC) with anti-ezrin, a-smooth actin and CD44H antibodies was performed in 37 biopsies before chemotherapy, 16 resected tumors of “poor” responders and 13 metastases. In addition the mRNA levels of ezrin of 13 frozen biopies and 4 metastases were evaluated by real time quantitative RT PCR. All results were correlated to the following clinical data: response to chemotherapy, onset of metastasis, event-free survival (EFS) and overall survival (OS). Results: Ezrin expression by IHC was found in 62% of 37 biopsies in the different histological subtypes especially chondroblastic osteosarcomas while chondrosarcomas were negative. A good correlation was found between positive or negative samples by IHC and mRNA levels. Ezrin expression was recorded in 84.5% of metastastic samples. The mean expression of ezrin was higher in metastases than biopsies (mean expression 38.1% versus 17.32%; p=0.024) but the onset of metastasis was not statistically correlated to ezrin positivity on biopsy (p = 0.183). In multivariate analysis, ezrin was an independent prognostic marker for EFS and OS with p<0.001 and p=0.003 respectively and a-smooth actin for OS only (p=0.024). No prognostic value was found for CD44H. Conclusions: We have shown that ezrin is expressed in the different subtypes of osteosarcomas especially chondroblastic osteosarcomas. Other studies are required to confirm that ezrin could be a useful tool for differential diagnosis with chondrosarcoma. Ezrin was an independent prognostic factor for event-free and overall survival rate in multivariate analysis and its partner a-smooth-actin was also an independent prognostic factor for overall survival only. These data confirm the role of ezrin signalling pathway for tumor dissemination in osteosarcomas in vivo. This also might be of interest for therapeutic strategy to select patient for dose intensification or to use new anticancer agents such as rapamycin which reduces experimental lung metastases through an ezrin-related pathway. No significant financial relationships to disclose.
Collapse
Affiliation(s)
- S. Salas
- La Timone University Hospital, Marseille, France; Medical Faculty, Marseille, France; La Conception University Hospital, Marseille, France
| | - J. Deville
- La Timone University Hospital, Marseille, France; Medical Faculty, Marseille, France; La Conception University Hospital, Marseille, France
| | - C. Bartoli
- La Timone University Hospital, Marseille, France; Medical Faculty, Marseille, France; La Conception University Hospital, Marseille, France
| | - J. Gaudart
- La Timone University Hospital, Marseille, France; Medical Faculty, Marseille, France; La Conception University Hospital, Marseille, France
| | - G. Bollini
- La Timone University Hospital, Marseille, France; Medical Faculty, Marseille, France; La Conception University Hospital, Marseille, France
| | - G. Curvale
- La Timone University Hospital, Marseille, France; Medical Faculty, Marseille, France; La Conception University Hospital, Marseille, France
| | - J. Gentet
- La Timone University Hospital, Marseille, France; Medical Faculty, Marseille, France; La Conception University Hospital, Marseille, France
| | - F. Duffaud
- La Timone University Hospital, Marseille, France; Medical Faculty, Marseille, France; La Conception University Hospital, Marseille, France
| | - D. Figarella-Branger
- La Timone University Hospital, Marseille, France; Medical Faculty, Marseille, France; La Conception University Hospital, Marseille, France
| | - C. Bouvier
- La Timone University Hospital, Marseille, France; Medical Faculty, Marseille, France; La Conception University Hospital, Marseille, France
| |
Collapse
|
39
|
Andrasi A, Bouvier C, Brandl A, de Carlan L, Fischer H, Franck D, Höllriegl V, Li WB, Oeh U, Ritt J, Roth P, Schlagbauer M, Schmitzer C, Wahl W, Zombori P. Practical implications of procedures developed in IDEA project--comparison with traditional methods. Radiat Prot Dosimetry 2007; 125:456-9. [PMID: 17314089 DOI: 10.1093/rpd/ncm166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
The idea of the IDEA project aimed to improve assessment of incorporated radionuclides through developments of more reliable and possibly faster in vivo and bioassay monitoring techniques and making use of such enhancements for improvements in routine monitoring. In direct in vivo monitoring technique the optimum choice of the detectors to be applied for different monitoring tasks has been investigated in terms of material, size and background in order to improve conditions namely to increase counting efficiency and reduce background. Detailed studies have been performed to investigate the manifold advantageous applications and capabilities of numerical simulation method for the calibration and optimisation of in vivo counting systems. This calibration method can be advantageously applied especially in the measurement of low-energy photon emitting radionuclides, where individual variability is a significant source of uncertainty. In bioassay measurements the use of inductively coupled plasma mass spectrometry (ICP-MS) can improve considerably both the measurement speed and the lower limit of detection currently achievable with alpha spectrometry for long-lived radionuclides. The work carried out in this project provided detailed guidelines for optimum performance of the technique of ICP-MS applied mainly for the determination of uranium and thorium nuclides in the urine including sampling procedure, operational parameters of the instruments and interpretation of the measured data. The paper demonstrates the main advantages of investigated techniques in comparison with the performances of methods commonly applied in routine monitoring practice.
Collapse
Affiliation(s)
- A Andrasi
- KFKI Atomic Energy Research Institute, H-1525 Budapest, P. O. Box 49, Hungary.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
40
|
Schmitzer C, Fischer H, Andrasi A, Bouvier C, Carlan L, Franck D, Höllriegl V, Li WB, Oeh U, Ritt J, Roth P, Wahl W, Zombori P. Improvements in routine internal monitoring--an overview of the IDEA project. Radiat Prot Dosimetry 2007; 125:472-6. [PMID: 17553864 DOI: 10.1093/rpd/ncm170] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
The IDEA project aimed to improve the assessment of incorporated radionuclides through developments of advanced in vivo and bioassay monitoring techniques and making use of such enhancements for improvements in routine monitoring. Many of these findings are not new in the sense that they are being already employed in advanced laboratories or for specialised applications. The primary goal was to categorise those new developments regarding their potential and eligibility for the routine monitoring community. Attention has been given to in vivo monitoring techniques with respect to detector characteristics and measurement geometry to improve measurement efficiency with special attention to low energy gamma emitters. Calibration-specifically supported by or through methods of numerical simulation-have been carefully analysed to reduce overall measurement uncertainties and explore ways to accommodate the individual variability based on characteristic features of a given person. For bioassay measurements at low detection limits, inductively coupled plasma mass spectroscopy offers significant advantages both in accuracy, speed, and sample preparation. Specifically, the determination of U and Th in urine and the associated models have been investigated. Finally, the scientific achievements have been analysed regarding their potential to offer benefits for routine monitoring. These findings will be presented in greater detail in other papers at this conference, whereas this paper intends to give an overview and put both the scientific achievements as well as the derived benefits into perspective.
Collapse
Affiliation(s)
- C Schmitzer
- ARC Seibersdorf Research GmbH, Seibersdorf, Austria.
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
41
|
Bui Nguyen Binh M, Bouvier C, Coindre J, Aurias A, De Pinieux G. Ostéosarcome parostéal et liposarcome bien différencié, une association fortuite ? À propos de 3 observations. Ann Pathol 2006. [DOI: 10.1016/s0242-6498(06)78528-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
42
|
Colin C, Baeza N, Tong S, Bouvier C, Quilichini B, Durbec P, Figarella-Branger D. In vitro identification and functional characterization of glial precursor cells in human gliomas. Neuropathol Appl Neurobiol 2006; 32:189-202. [PMID: 16599947 DOI: 10.1111/j.1365-2990.2006.00740.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Human gliomas including astrocytomas and oligodendrogliomas are defined as being composed of neoplastic astrocytes and oligodendrocytes respectively. Here, on the basis of in vitro functional assays, we show that gliomas contain a mixture of glial progenitor cells and their progeny. We have set up explant cultures from pilocytic astrocytomas, glioblastomas and oligodendrogliomas and studied antigens that characterize glial lineage, from the precursor cells (glial restricted precursors and oligodendrocyte-type2-astrocyte/oligodendrocyte precursor cells expressing the A2B5 ganglioside) to the differentiated cells (oligodendrocyte and type-1 and type-2 astrocytes). All tumoral explants contain A2B5+ cells and can generate migrating cells with distinctive functional properties according to glioma subtypes. In pilocytic astrocytomas, very few migrating cells are dividing and can differentiate in type-2 astrocytes or towards the oligodendrocyte lineage. In glioblastomas, most migrating cells are dividing, express A2B5 or glial fibrillary acid protein (GFAP) and can generate oligodendrocytes and type-1 and type-2 astrocytes in appropriate medium. Oligodendroglioma explants are made by actively dividing glial precursor cells expressing A2B5 or PSA-NCAM. Only few cells can migrate and differentiation towards oligodendrocyte lineage does not occur. Isolated A2B5+ cells from both glioblastomas and oligodendrogliomas showed similar genetic alterations as the whole tumour. Therefore, pilocytic astrocytomas contain slowly dividing oligodendrocyte-type2-astrocyte/oligodendrocyte precursor cells in keeping with their benign behaviour whereas both glioblastomas and oligodendrogliomas contain neoplastic glial restricted precursor cells. In oligodendrogliomas, these cells are trapped in undifferentiated and proliferating state. The precursor cells properties present in gliomas give new insight into their histogenesis and open up new avenues for research in the field of gliomagenesis.
Collapse
Affiliation(s)
- C Colin
- Laboratoire de Biopathologie de l'Adhésion et de la Signalization, EA3281, IPHM, Faculté de Médecine Timone, Marseilles, France
| | | | | | | | | | | | | |
Collapse
|
43
|
Lhomme J, Bouvier C, Mignot E, Paquier A. One-dimensional GIS-based model compared with a two-dimensional model in urban floods simulation. Water Sci Technol 2006; 54:83-91. [PMID: 17120637 DOI: 10.2166/wst.2006.594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
A GIS-based one-dimensional flood simulation model is presented and applied to the centre of the city of Nîmes (Gard, France), for mapping flow depths or velocities in the streets network. The geometry of the one-dimensional elements is derived from the Digital Elevation Model (DEM). The flow is routed from one element to the next using the kinematic wave approximation. At the crossroads, the flows in the downstream branches are computed using a conceptual scheme. This scheme was previously designed to fit Y-shaped pipes junctions, and has been modified here to fit X-shaped crossroads. The results were compared with the results of a two-dimensional hydrodynamic model based on the full shallow water equations. The comparison shows that good agreements can be found in the steepest streets of the study zone, but differences may be important in the other streets. Some reasons that can explain the differences between the two models are given and some research possibilities are proposed.
Collapse
Affiliation(s)
- J Lhomme
- UMR HydroSciences Montpellier, Maison des Sciences de l'Eau, 300 avenue du Professeur Emile Jeanbrau, 34000 Montpellier, France.
| | | | | | | |
Collapse
|
44
|
Métellus P, Fuentes S, Adetchessi T, Levrier O, Flores-Parra I, Talianu D, Dufour H, Bouvier C, Manera L, Grisoli F. Retrospective study of 77 patients harbouring lumbar synovial cysts: functional and neurological outcome. Acta Neurochir (Wien) 2006; 148:47-54; discussion 54. [PMID: 16258839 DOI: 10.1007/s00701-005-0650-z] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2004] [Accepted: 09/05/2005] [Indexed: 12/28/2022]
Abstract
BACKGROUND Synovial cysts represent an uncommon and probably underestimated pathological entity of the degenerative lumbar spine. The authors report a retrospective analysis of the clinical presentation, radiological studies and operative findings in 77 patients surgically treated for symptomatic lumbar synovial cysts at their institution. MATERIALS AND METHOD Between January 1992 and June 1998, a total of 77 patients presenting with symptomatic lumbar synovial cysts were operated on in the author's department. Operative procedure, complications, results and pathological findings were correlated with preoperative assessment. There were 41 men and 36 women with an average age of 63 years (range 44-90 years). RESULTS On the basis of their symptom complex on presentation, two populations were identified: patients who presented with a single radicular pain (group I = 51 patients), and patients who presented with bilateral neurogenic claudication (group II = 26 patients). Neurological examination on presentation demonstrated motor deficit (12%), sensory loss (26%) and reflex changes (35%). Degenerative disc disease and facet joint osteoarthritis was a frequent finding in patients with pre-operative MRI. Facet joint orientation was >45 degrees in 76.6% of patients. Preoperative spondylolisthesis was found in 48% on radiological studies. All the patients were treated surgically with resection of the cyst. No fusion was performed as a first line procedure. However subsequent fusion was necessary in one patient who developed symptomatic spondylolisthesis. Mean follow-up period was of 45 months ranging from 18 to 105 months. Only one recurrence occurred during the follow-up period. An excellent or good functional outcome was seen in 97.4% of cases, and 89% of the patients with motor deficit recovered. CONCLUSIONS Surgical resection of lumbar synovial cysts is an effective treatment associated with very low morbidity. Synovial cysts are associated with increased grade and frequency of facet joint asteoarthritis but not with increased grade or frequency of degenerative disc disease compared with patients without cysts. In the author's opinion, at the present time, there is no reliable criterion which allows the development of a symptomatic spinal instability to be predicted in patients with a preoperative spondylolisthesis and therefore fusion as a first line procedure is still debatable.
Collapse
Affiliation(s)
- P Métellus
- Neurosurgery Department, Timone Hospital, Marseille, France.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
45
|
Metellus P, Bouvier C, Nanni I, Fuentes S, Dufour H, Adetchessi T, Grisoli F. Les tumeurs fibreuses solitaires des méninges : étude rétrospective de 9 cas. Neurochirurgie 2005. [DOI: 10.1016/s0028-3770(05)83567-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
46
|
Duffaud F, Doddoli C, Digue L, Mercier C, Bouvier C, Volot F, Favre R. A single-institution, multidisciplinary approach to primary localized chest wall sarcomas. J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.9054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- F. Duffaud
- Hosp La Timone, Marseille, France; Hosp Sainte Marguerite, Marseille, France
| | - C. Doddoli
- Hosp La Timone, Marseille, France; Hosp Sainte Marguerite, Marseille, France
| | - L. Digue
- Hosp La Timone, Marseille, France; Hosp Sainte Marguerite, Marseille, France
| | - C. Mercier
- Hosp La Timone, Marseille, France; Hosp Sainte Marguerite, Marseille, France
| | - C. Bouvier
- Hosp La Timone, Marseille, France; Hosp Sainte Marguerite, Marseille, France
| | - F. Volot
- Hosp La Timone, Marseille, France; Hosp Sainte Marguerite, Marseille, France
| | - R. Favre
- Hosp La Timone, Marseille, France; Hosp Sainte Marguerite, Marseille, France
| |
Collapse
|
47
|
Neppel L, Bouvier C, Desbordes M, Vinet F. Sur l'origine de l'augmentation apparente des inondations en région méditerranéenne. ACTA ACUST UNITED AC 2005. [DOI: 10.7202/705519ar] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
En septembre 2002, les régions méditerranéennes françaises et notamment le département du Gard ont été affectées par des précipitations d'une extrême intensité. On estime que 80% de ce département a été inondé, on dénombre 23 victimes et les dégâts ont été évalués à 1.2 milliards d'euros. Cette catastrophe hydrologique soulève à nouveau les problèmes de la fréquence de ces événements et de l'augmentation des forts cumuls de pluie ces dernières années. L'objet de cet article est d'apporter quelques éléments de réponse, notamment à travers l'analyse régionale des pluies extrêmes journalières ayant affecté la région Languedoc-Roussillon de 1958 à 2002.
La fréquence régionale des pluies extrêmes est estimée en prenant en compte la superficie couverte par ces événements en fonction des hauteurs pluviométriques. A l'échelle régionale la période de retour de l'événement varie entre 80 ans pour la superficie touchée par au moins 200 mm à 140 ans pour celle couverte par 300 mm.
La stationnarité des fréquences des pluies extrêmes est analysée à partir des chroniques du nombre annuel d'événements pluvieux dépassant 200 mm, 250 mm et 300 mm en 24h maximum, entre 1958 et 2002 sur la région. Les tests de stationnarité ne révèlent pas de tendance significative à l'augmentation de ces fréquences. Les données historiques aboutissent aux mêmes conclusions. L'augmentation réelle des inondations est en fait principalement liée à l'augmentation de la vulnérabilité des bassins.
Collapse
|
48
|
Pasquinet E, Bouvier C, Thery-Merland F, Hairault L, Lebret B, Méthivier C, Pradier CM. Synthesis and adsorption on gold surfaces of a functionalized thiol: elaboration and test of a new nitroaromatic gas sensor. J Colloid Interface Sci 2004; 272:21-7. [PMID: 14985018 DOI: 10.1016/j.jcis.2003.11.025] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2003] [Accepted: 11/07/2003] [Indexed: 11/30/2022]
Abstract
A new type of sensor was built by synthesizing a long-chain thiol functionalized with an aromatic head group and grafting it onto a gold surface. The synthesis route is here described, together with the IR, MS, and RMN analysis of the new product. Adsorption of the latter onto gold was assessed by a combination of RAIRS and XPS data. Those reveal that a monolayer of thiol is adsorbed and oriented with the benzene groups toward the external part of the layer. Detection tests were performed in various atmospheres by QCM. The response shows good sensitivity to 2,4-dinitrotrifluoromethoxybenzene as a model of nitroaromatic compound.
Collapse
|
49
|
Abstract
Nurse developments in the management of neuroendocrine tumours have changed significantly over the past three years. At the Royal Free Hospital we set up the nurse specialist role due to the expansion of patients being referred to the specialist unit, and the obvious need for a nursing input into their care. The nurse specialist can make a significant contribution within the context of a multidisciplinary team especially in the production of guidelines and policies to ensure and maintain high standards of practice, education for the patient, and the provision of expertise and security that the patient requires when diagnosed with a rare disease.
Collapse
Affiliation(s)
- C Bouvier
- Neuroendocrine Tumour Unit, Royal Free Hospital, London NW3 2QG, UK
| |
Collapse
|
50
|
Métellus P, Flores-Parra I, Fuentes S, Dufour H, Adetchessi T, Do L, Bouvier C, Manera L, Grisoli F. [A retrospective study of 32 lumbar synovial cysts. Clinical aspect and surgical management]. Neurochirurgie 2003; 49:73-82. [PMID: 12746722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Abstract
We report a retrospective analysis of a series of 32 cases of lumbar synovial cysts. Clinically, two populations were identified: patients who presented radicular pain mimicking the clinical diagnosis of disk herniation (group I) and patients who presented neurogenic claudication consistent with a diagnosis of lumbar spinal stenosis (group II). The radiological work-up consisted in standard X-rays and CT-scan for all patients. MRI (magnetic resonance imaging) was performed in 14 patients. All the patients were operated on. The surgical technique consisted in foraminotomy for patients in group I and more or less extensive laminectomy for patients in group II. Functional outcome was marked by a significant improvement in 96.9% of the patients and those who presented a motor deficit recovered in 83% of the cases. Based on the findings in this series, we discuss the clinical aspects and the therapeutic management of this pathological entity.
Collapse
Affiliation(s)
- P Métellus
- Service de Neurochirurgie, Hôpital La Timone, Marseille.
| | | | | | | | | | | | | | | | | |
Collapse
|