Proton Therapy for skull base tumours
Proton beam therapy reduces overall dose to the patient
Skull base endonasal approach to tumours

Date and Time

Skull base endoscopic surgery and proton therapy webinar
8:00AM April 12th, 2024, Singapore time.

Learning Objectives

Skull base tumours can be difficult to manage owing to their location. A specialised team is often required. Two tools have proven themselves valuable to tackle this disease- proton therapy and endoscopic transnasal surgery. Join this webinar to:

  1. Learn about the role of endoscopic approaches to skull base surgery. The endoscopic transnasal approach is a minimally-invasive approach to the skull base.
  2. Learn about the advantages of proton therapy compared to X-ray based radiotherapy in skull base tumours. Proton therapy can be used for radiotherapy dose escalation as well as reduction of collateral dose to normal structures.

Register here

Please scan or click below for registration

For questions, please email wenshen.looi@proton.sg or ruxin.wong@proton.sg



Dr Adam Holtzman
Radiation Oncologist
Mayo Clinic Florida

Dr Adam Holtzman speaking in Proton Therapy SG webinar

Dr. Adam Holtzman is a board-certified radiation oncologist with expertise in head and neck and skull-base tumors. Dr. Holtzman received his BS and MD at the University of Florida (UF), where he completed the accelerated combined undergraduate and medical school honors program. He continued his post-graduate residency at UF and then as faculty at the UF Health Proton Therapy Institute before joining Mayo Clinic Florida. His primary research interest is in clinical trials and advanced radiotherapy techniques, including particle therapy. He has led several studies investigating and establishing the efficacy and safety for high-dose conformal particle therapy.

Dr Alex Tham
ENT Skull Base Surgeon
Asian Healthcare Specialists

Dr Alex Tham speaking at Proton Therapy SG webinar

Dr Alex Tham is an Otolaryngology – Head and Neck Surgeon with subspecialty expertise in Rhinology (diseases of the nose and sinuses) and Endoscopic Skull Base Surgery. He completed his medical school training at the National University of Singapore (NUS), and went on to complete his residency training in Otolaryngology – Head and Neck Surgery in Singapore. During his residency, he obtained membership with the Royal College of Surgeons of Edinburgh, and a Masters of Medicine (Otorhinolaryngology) from NUS. Following the completion of his surgical residency training, he was awarded the prestigious Ministry of Health Scholarship for fellowship training. This was fulfilled on a one-year fellowship in Advanced Rhinology and Skull Base Surgery in 2021, under the tutelage of Associate Professor Marc Tewfik, at the McGill University Health Centre in Montreal, Canada.


This webinar is brought to you by radiation oncologists Dr Wong Ru Xin and Dr Looi Wen Shen of Proton Therapy SG, in conjunction with https://ro-se.org

Dr Wong Ru Xin

Dr Wong Ru Xin is a senior consultant at Proton Therapy SG whose expertise lies in treating cancer with proton beam therapy and advanced radiotherapy techniques such as stereotactic radiosurgery. She graduated from the National University of Singapore on the Dean’s list and was the recipient of a several academic prizes. She then underwent training at National Cancer Centre and worked there for more than 10 years, receiving several research and clinical grants to implement new technologies and tools. As part of her training for proton therapy in Singapore, she was sponsored by the Ministry of Health under the Health Manpower Development Program as a visiting scientist to St Jude’s Children’s Hospital. She also received furthertraining at Kobe proton centre as well as Provision Cares proton center.

Dr Looi Wen Shen

Dr Looi Wen Shen graduated from National University Singapore (YLL-SOM) in 2008 and completed his specialist training at National Cancer Centre Singapore (NCCS). Formerly a Consultant radiation oncologist at NCCS and Clinical Assistant Professor at Duke-NUS Medical School, he also practised at the University of Florida Proton Therapy Institute, USA, where he completed formal subspecialty fellowship training in adult and paediatric proton therapy. Subsequently, he treated the first paediatric proton therapy program at NCCS. He also received further training at the Taipei Medical University Hospital Proton Centre for regionally endemic diseases such as liver cancer and nasopharyngeal cancer. His interests are in prostate / paediatric / sarcoma / head and neck / brain and stereotactic body radiation therapy (SBRT).


Proton Therapy for skull base tumours

About ro-se.org

We are three passionate radiation oncologists. Led by Dr Wong Ru Xin, we started this website for to help with patient support and education.

Looi Wen Shen radiation oncologist and team
Dr Looi Wen Shen (right), Dr Wong Ru Xin (left), Dr Shaun Ho (centre).

Authored by:

Dr Looi Wen Shen
Dr Wong Ru Xin
Dr Shaun Ho