Doctor Idriss Troussier CV - Onco-radiotherapist

About the doctor


  • Doctor, specialist in the field of radiotherapy and medical treatments for oncology
  • Doctor Attaché of the University Hospital in Geneva in the field of onco-radiotherapy
  • Former intern of the Parisian hospitals APHP (L’assistance Publique des hôpitaux de Paris) and the hospital la Pitié-Salpêtrière
  • Advanced qualifications at the University Hospital of Geneva
  • Internship at Poitiers University Hospital

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Diplomas and defense


Diploma in Radiation Oncology


Diploma in Medical Oncology Treatment Techniques


Postgraduate Diploma in University Clinics in Targeted Therapy, Hormone Therapy, Immune Therapy and Chemotherapy


Diploma of advanced training in the field of innovative techniques of radiotherapy and radiosurgery VMAT, gamma knife, defense of the work on the topic of ” Treatment of brain metastases using the Gamma knife”


Diploma in Oncology Treatment “Ear Throat Nose” issued by the Gustave Roussy institute


Diploma in Innovative Radiotherapy Techniques, VMAT, Arc Therapy, Radiosurgery. Defense of the diploma on the topic of Radiosurgery for multiple brain metastases, doses, and timing


Diploma work with congratulations from the jury on the topic of Adenopathy of the brain with metastases without knowledge of primary cancer


Masters in Oncology Medical Sciences


Certificate issued by the Swiss state ‘’ Radiotherapy specialist ’’


MEBEKO Certificate Switzerland


Teaching activities


Taught at the University of Geneva for the students of the Faculty of Medicine


Taught 6 students and interns at the University of Paris


Conducted a conference at the Faculty of Medicine in Poitiers, the topic of Hippocrates’ Work in Oncology


Keynote speaker at the Faculty of Medicine in Biochemistry and Biopsy

Scientific publications

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  1. Selection of lymph node target volumes for definitive head and neck radiation therapy: a 2019 Update. Radiother Oncol. 2019 May;134:1-9. doi: 10.1016/j.radonc.2019.01.018.
  2. Neck management in head and neck squamous cell carcinomas: where do we stand? Med Oncol. 2019 Mar 27;36(5):40. doi: 10.1007/s12032-019-1265-1.
  3. Chemoradiation for esophageal cancer: a critical review of the literature, cancer radiotherapie, janv. 2019, canrad.2018.05.003
  4. Advances in the management of cervical lymphadenopathies of unknown primary with intensity modulated radiotherapy: Doses and target volumes.  Cancer Radiother. 2018 Sep;22(5):438-446.
  5. Management of locally advanced anal canal carcinoma with intensity-modulated radiotherapy and concurrent chemotherapy.Medical Oncology 2018 Aug 20;35(10):134.
  6. Advances in the management of cervical lymphadenopathies of unknown primary: advances in diagnostic imaging and surgical modalities and new international staging system. Bull Cancer. 2018 Feb;105(2):181-192.
  7. Quality and safety policy implementation for a new radiotherapy device Cancer Radiother. 2018 Dec 14. pii: S1278-3218(18)30387-1.
  8. Unilateral or bilateral irradiation in cervical lymph node metastases of unknown primary? A retrospective cohort study accepted proof European Journal cancer-D-18-00362R3
  9. Clinical research for rectal carcinoma: State of the art and objectives. Cancer Radiother. 2017 Sep 7. pii: S1278-3218(17)30202-0. doi: 10.1016/j.canrad.2017.07.019.
  10. [Lung dose constraints for normo-fractionated radiotherapy and for stereotactic body radiation therapy]. Cancer Radiother. 2017 Sep 5. pii: S1278-3218(17)30344-X. doi: 10.1016/j.canrad.2017.07.046. [Epub ahead of print] French.
  11. Low level Laser therapy : a corner stone in the management of cancer therapy-Induced mucsitis Chapter 41 Handbook of low-level Laser therapy, 2017 Pan Stanford Publishing
  12. Adaptive radiation therapy in head and neck cancer for clinical practice: state of the art and practical challenges. Jpn J Radiol. 2017 Feb;35(2):43-52. doi: 10.1007/s11604-016-0604-9. Epub 2016 Dec 1. Review.
  13. Role of irradiation for patients over 80 years old with glioblastoma: a retrospective cohort study. J Neurooncol. 2016 Sep;129(2):347-53. doi: 10.1007/s11060-016-2182-1.
  14. Efficacy and safety of helical tomotherapy with daily image guidance in anal canal cancer patients. Acta Oncol. 2016 Jun;55(6):767-73. doi: 10.3109/0284186X.2015.1120886.
  15. [Clinical and paraclinical follow-up after radiotherapy for head and neck cancer]. Cancer Radiother. 2015 Oct;19(6-7):597-602. doi: 10.1016/j.canrad.2015.05.017. Epub 2015 Aug 13.
  16. [Mucosal melanomas of the head and neck: State of the art and current controversies]. Bull Cancer. 2015 Jun;102(6):559-67. doi: 10.1016/j.bulcan.2015.04.013. Epub 2015 May 26.
  17. [Management of locally advanced anal canal carcinoma with modulated arctherapy and concurrent chemotherapy].Cancer Radiother. 2015 Apr;19(2):127-38. doi: 10.1016/j.canrad.2014.12.005. Epub 2015 Mar 12. French.
  18. [Lymph node metastases from squamous cell carcinoma of unknown primary site. Is it time to change of paradigm?]. Bull Cancer. 2014 May 1;101(5):455-60. doi: 10.1684/bdc.2014.1965.
  19. Cervical node of unknown primary: patterns of care and factors influencing the choice of clinical target volumes. Oral Oncol. 2014 May;50(5):e25-6.
  20. [Target volumes in cervical lympadenopathies of unknown primary: toward a selective customized approach? On behalf of REFCOR]. Cancer Radiother. 2013 Nov;17(7):686-94. doi: 10.1016/j.canrad.2013.07.132. Epub 2013 Oct 4. Review. French.
  21. Clinical outcomes of melanoma brain metastases treated with stereotactic radiation and immune checkpoint inhibitors in submission
  22. A retrospective study of the management of metastatic renal cell carcinoma brain tumors Clin Genitourin Cancer. 2019 Jun;17(3):191-200. doi: 10.1016/j.clgc.2019.02.007.
  23. Imaging-based target volume reduction in chemoradiotherapy for locally advanced non-small cell lung cancer (PET-Plan): a multicenter, open-label, randomized, controlled trial:
    “Less is more?” THE LANCET ONCOLOGY may 2020


  1. Chimio-radiothérapie des cancers du pancréas: pourquoi et comment protéger la rate? Cancer/RadiothérapieVolume 22, Issues 6–7, October 2018, Pages 700-701
  2. Irradiation uni ou bilatérale des métastases ganglionnaires cervicales de primitif inconnu ? Cancer/RadiothérapieVolume 22, Issues 6–7, October 2018, Pages 705-706
  3. Faut-il adapter la chimioradiothérapie néoadjuvante des cancers de l’œsophage à l’histologie ? Analyse des essais de phase IIICancer/RadiothérapieVolume 22, Issues 6–7, October 2018, Pages 700
  4. Immune checkpoint inhibitors and sereotactic radiosurgery (SRS) in melanoma brain metastases. ASCO online publication 2018, abstract 225009
  5. Proposition of splenic dose-volume constraints to prevent severe lymphopenia after chemoradiation for pancreatic cancer. Astro 2018
  6. Indications for external beam radiotherapy in differentiated thyroid carcinoma: an expert consensus – accepted ESTRO 2018
  7. Contemporary esophageal cancer management by chemo radiation: survey of French radiation oncologists – accepted ESTRO 2018
  8. Whole brain radiotherapy and concurrent temozolomide in multifocal and/or multicentric newly diagnosed glioblastoma –  accepted ESTRO 2018
  9. 894P – A retrospective study of the management of metastatic renal cell carcinoma brain tumors Annals of Oncology (2017) 28 (suppl_5): v295-v329. 10.1093/annonc/mdx371
  10. Comparaison des volumes cibles prévisionnels entre les essais de phase III de chimioradiothérapie exclusive des cancers de l’œsophage Cancer/Radiothérapie, Volume 21, Issues 6–7, Poster SFRO October 2017, Pages 695-696, Prix Lucien Mallet 2016
  11. Prise en charge des patients atteints d’un cancer de l’œsophage par chimioradiothérapie : enquête de pratique nationale multicentrique, Cancer/Radiothérapie, Volume 21, Issues 6, 7 Poster SFRO October 2017, Page 681, Prix Lucien Mallet 2016, radio-anatomie
  12. Étude rétrospective monocentrique de la prise en charge des métastases cérébrales de cancer du rein, Cancer/Radiothérapie, Volume 21, Issues 6–7, Poster SFRO October 2017 page 688
  13. Arcthérapie conformationnelle mono-isocentrique des métastases cérébrales multiples : planification automatisée et comparaison dosimétrique avec le Gammaknife® Perfexion™ Volume 21, Issues 6–7, Poster SFRO October 2017, Pages 685-686
  14. Rôle du manipulateur en électroradiologie médicale qualiticien dans la mise en œuvre de l’arcthérapie volumétrique modulée au sein d’un service de radiothérapie, Cancer/Radiothérapie, Volume 19, Issues 6–7, Poster SFRO, October 2015, Pages 694
  15. Escalade de dose focale sur l’indice tumoral par curiethérapie de haut débit de dose associée et radiothérapie tridimensionnelle conformationnelle. Cancer/Radiothérapie, Volume 19, Issues 6–7, Poster SFRO, October 2015, Pages 671-672
  16. Cancer de la prostate localisé, à risque intermédiaire ou élevé, dont le traitement a été une radiothérapie externe et incluant une curiethérapie de haut débit de dose : expérience du pôle régional de cancérologie de Poitou-Charentes. Cancer/Radiothérapie, Volume 18, Issues 5–6, Poster SFRO October 2014, Page 622
  17. Variabilité entre les observateurs de la définition des volumes cibles muqueux en situation d’adénopathie cervicale sans porte d’entrée retrouvée, Cancer/Radiothérapie, Volume 17, Issues 5–6, October 2013, Page 628

Studies and work


Competed for admission to the Faculty of Medicine, was one of 17 students who entered from a total of 2,400 people. Was one of 1461 who passed the national selection for the Faculty of Medicine out of a total of 8000 applicants.


Internship in Surgery at the University Hospital in Poitiers with a degree in Digestive Surgery and Urology


Intern at the University Clinic of La Rochelle and Niort for radiotherapy techniques


Assistant Doctor in Switzerland at Lausanne, in the field of stereotactic surgery


Radiotherapist at the University Hospital Pitié-Salpêtrière, specializing in head oncology, glioblastomas, gliomas, oncology of the respiratory system, digestive organs, and stereotactic surgery of brain metastases. Stereotactic surgery and gamma knife.


Radiotherapist in Switzerland at the University Hospital in Lausanne, stereotactic treatment of female and male oncology. Curie therapy – brachytherapy. Treatment of oncology of the digestive system organs, respiratory organs. Publication of scientific work on stereotactic surgery for prostate cancer.


Radiotherapist at the University Hospital of Geneva. Volumetric radiotherapy, Arc therapy, radiosurgery, stereotactic radiotherapy. Specializing in oncology of the liver and bone metastases.

Since June 2019,

co-founder and radio oncologist at the High Energy Center clinic in Nice.

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