Your Notifications
All done, no notifications
Dr. Kaan Oysul

Dr. Kaan Oysul

Oncologist ·
, Istanbul, Turkey

26 Years of experience ·
Languages Spoken: Turkish , English

Kaan Oysul is currently available for hospital consultations. Explore online consultation options or book an in-person visit.

About Dr. Kaan Oysul

Conditions Treated by Dr. Kaan Oysul

Radiation oncologists are trained in treating cancer with radiation therapy or high-energy x-rays to kill cancer cells. Planning, also called mapping, is an important part of the job of radiation oncologists. Here is a list of some of the conditions a radiation oncologist:

  • Lung Cancer
  • Abnormalities in the Brain
  • Prostate Cancer
  • Lung Tumours
  • Cervical Cancer
  • Thyroid Cancer
  • Spine Tumours
  • Liver Tumours
  • Tumors
  • Gastrointestinal Cancers
  • Functional Abnormalities and Small Tumors of the Brain
  • Vascular Malformations
  • Kidney Tumours
  • Rectal Cancer
  • Head and Neck Cancers
  • Eye Cancer
  • Brain Tumours
  • Cancers near the Brain and Spinal Cord
  • Uterine Cancer
  • Prostate Tumours
  • Head And Neck Cancer
  • Breast Cancer
  • Brain Cancer
  • Pancreas Tumours

Cancer of lung, head & neck, prostate, and breast are effectively treated with radiation therapy. Lung cancer radiation therapy uses powerful X-rays to kill cancer cells or to stop them from growing. Radiation can also be used before lung cancer surgery to reduce the size of the tumor or after surgery to kill the cancer cells in the lungs.

Signs and symptoms treated by Dr. Kaan Oysul

You must see an oncologist if you have any of the below-listed symptoms:

  • Cancer
  • Lump or area of thickening that can be felt under the skin
  • Persistent cough or trouble breathing
  • Weight changes, including unintended loss or gain
  • Changes in bowel or bladder habits.
  • Skin changes, such as yellowing, darkening or redness of the skin, sores that won't heal, or changes to existing moles
  • Tumor
  • Fatigue

If you have any symptoms that do not go away or get severe, you must see a doctor to find out what is causing them. If the symptoms are not due to cancer, the doctor can help find out the cause. Cancer symptoms depend on a number of factors like the location of cancer, the size of cancer, and how it affects the adjacent organs.

Operating hours of Dr. Kaan Oysul

Dr Kaan Oysul is available from Monday to Saturday, 11 am to 5 pm. The doctor is not available on Sunday.

Popular Procedures performed by Dr. Kaan Oysul

The list of popular procedures that Dr Kaan Oysul perform is given below:

  • Stereotactic Radio Therapy (SRT)
  • Intensity-modulated radiotherapy (IMRT)

Proton Beam Therapy is the latest form of radiation therapy. This uses a high-energy proton beam for cancer treatment. It is a kind of particle therapy that offers targeted treatment, unlike any other radiation treatment. Proton Beam Therapy is effective for the treatment of cancers like skull base tumors, pediatric cancers, brain tumors, and prostate cancers.. CyberKnife is a non-invasive option for the treatment of both cancerous and non-cancerous tumours. The treatment delivers beams of high-energy radiation to the tumour with high accuracy and offers new hope to patients worldwide. It is used for the treatment of different types of cancer in the body, including the Liver, Pancreas, Kidney, Prostate, Lung, Brain, and Spine.

Qualification

  • Medical School - Gulhane Military Medical Faculty, 1992
  • Specialization Training - Gulhane Military Medical Faculty, 1998

Work Experiences

  • GATA, Professor of Radiation Oncology AD (2012)
  • Ankara Private Onko Oncology Center, Part Time Radiation Oncologist (2005 - 2011)
  • GATA, Radiation Oncology AD Associate Professor (2005 - 2012)
  • University of Pittsburgh, The Department of Neurological Surgery, Served as an Instructor, Neurosurgical Fellowship in Gamma Knife Radiosurgery and Stereotactic Surgery (2005)
  • GATA, Radiation Oncology AD Assistant Professor (1999 - 2005)
  • GATA, Radiation Oncology AD Radiation Oncology Specialist (1999)
  • United Nations Bosnia and Herzegovina Peace Force Flight Doctor (1995)
  • United Nations Bosnia and Herzegovina Peace Force Flight Doctor (1993 - 1994)

Ready to Speak with Kaan Oysul?

Book a secure video consultation for expert Cancer Specialist care.

Procedures Performed

Gamma Knife Radiosurgery
Intensity-modulated radiotherapy (IMRT)
Radiation Therapy
Stereotactic Radio Therapy (SRT)
Thymectomy

Frequently Asked Questions

Dr. Kaan Oysul is a specialized Radiation Oncologist and is one of the most sought after doctors in Ankara, Turkey.

Yes. Dr. Kaan Oysul offers telemedicine via MediGence. Top Cancer Specialist in Turkey like Dr. Kaan Oysul are offering second opinions and video consultations at the click of a button. One can clear all their queries before opting to travel abroad for treatment with the power of Online Doctor Consultation.

To avail a Telemedicine call with Dr. Kaan Oysul, the interested candidate should:
  • Search Dr. Kaan Oysul on the MediGence website search bar
  • Click the video icon against his profile
  • Select an appropriate date
  • Register on the website
  • Upload necessary documents
  • Make the payment via secured payment gateway of Paypal
  • Join the video call by clicking the link received over email on decided date and time

Dr. Kaan Oysul is one of the most sought after specialists in Turkey and has over 26 Years years of experience.

The consultation fees of Cancer Specialist in Turkey like Dr. Kaan Oysul starts from USD 225.

FAQ's Related to Radiation Oncologist

Radiation oncologists use the therapeutic properties of radiation to treat cancer. They understand cancer as a disease, its cause, and patterns of spread. Radiation oncologists also determine how radiation can fit in the general scheme of treatment. Radiation oncologists can use various methods for cancer treatment, including external beam radiotherapy, modality therapy, radioactive implantations, and hyperthermia. Planning plays a major role in cancer treatment. They keep an eye on the overall health of cancer patients and establish long-term relationships with patients post-treatment.

For the evaluation of your condition, you have to get certain tests done which may include the following:

  • Cancer Screening
  • Physical exam
  • Blood Tests
  • Computed tomography (CT) scan
  • Magnetic resonance imaging (MRI)
  • X-Ray

A mammogram is the most effective technique to detect breast cancer before any lumps or symptoms appear. Early diagnosis of breast cancer provides a woman with more options. It also increases a woman’s chances of having the best treatment.

Your primary physician might refer you to a radiation oncologist if they find that you show some signs and symptoms related to cancer. The radiation oncologist will evaluate your condition completely to know the condition you are suffering from. Below listed conditions need to be discussed with a radiation oncologist:

  1. Liver cancer
  2. Breast cancer
  3. Bone cancer
  4. Lung cancer
  5. Lymphoma
  6. Colon cancer
  7. Brain cancer
  8. Pancreatic cancer

You need to see a radiation oncologist if you have the below-listed symptoms: :

  1. Difficulty swallowing
  2. Skin changes
  3. Oral changes
  4. Breast changes: Lump or firm feeling in the breast
  5. Trouble urinating, blood in the urine, and pain when urinating
  6. Changes in bathroom habits
  7. Bloating
  8. Chronic coughing
  9. Bowel changes: Changes in bowel habits, blood in the stools
  10. Abnormal periods or pelvic pain

Explore Telemedicine Specialists

Dr. Vijita Jayan
Reviewer

BPT, MPT (Neuro)

18 Years of Experience

Last Reviewed - June 2026

With over 18 years of distinguished clinical experience, Dr. Vijita Jayan is a highly accomplished Clinical Director and Rehabilitation Specialist, renowned for her expertise in neuro-rehabilitation, functional recovery, and mobility-dependent case management. Her extensive practical knowledge enables her to design and implement individualized, evidence-based rehabilitation protocols that consistently yield measurable patient outcomes. A prolific researcher and academic writer, she has authored numerous peer-reviewed articles and research papers, significantly advancing the field of rehabilitative medicine. The recipient of multiple prestigious accolades, Dr. Jayan is widely regarded as one of the foremost authorities in Physical Medicine and Rehabilitation, continually shaping neuro-rehabilitative care through research, innovation, and clinical excellence.
View More
Nimra Haseeb
Author

MSc Biochemistry

4 Years of Experience

Last Reviewed - June 2026

Miss Nimra Haseeb is a medical researcher and a scientific content writer. She holds a Bachelor’s degree in Biotechnology and a Master’s in Biochemistry from Integral University, Lucknow. With strong experience in healthcare research, she specializes in secondary research, clinical data analysis, and evidence-based medical writing. Her work focuses on transforming complex scientific and medical information into clear, accurate, and reliable healthcare content for patients and healthcare audiences. She is also experienced in interpreting medical studies and healthcare trends to deliver well-researched and informative content that supports better health awareness and decision-making.
View More

Please Enquire

Required | alphabets and spaces
Required | A valid, working email address
Required | A valid contact

Not Sure About Your Treatment Plan? Get a Free Second Opinion

Have your reports reviewed by independent oncology experts to help you make a confident treatment decision, all online within 48 hours