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Dr. Chang Hyun

Dr. Chang Hyun

Surgical Oncologist

, Seoul, South Korea

18 Years of experience

Speaks: Korean , English

Dr. Chang Hyun is currently not consulting online with MediGence
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About Dr. Chang Hyun

Condition Treated by Dr. Chang Hyun

Here is the list of some of the conditions Dr Chang Hyun treats:

  • Breast Cancer
  • Ependymomas
  • Skin Cancer
  • Pancreatic Cancer
  • Colorectal or Colon Cancer
  • Lung Cancer
  • Ovarian Cancer
  • Oral or Mouth Cancer
  • Primitive Neuroectodermal Tumors
  • Mixed Gliomas
  • Oligodendrogliomas
  • Meningiomas
  • Prostate Cancer
  • Brain Cancers- Astrocytoma
  • Stomach Cancer
  • Cervical Cancer

Breast cancer surgery is performed to remove the specific area of cancer in the breasts. The surgeon removes cancer and healthy tissues all around it. You usually have to undergo radiotherapy for the breast after this kind of surgery.

Signs and Symptoms treated by Dr. Chang Hyun

There are around 200 different types of cancer and all these can cause different symptoms. The symptoms are often linked to some cancer types. The signs could also be general, including weight loss, fatigue, and unexplained pain. Cancer can produce various symptoms and these can differ from person to person. Some of the signs and symptoms of different types of cancer are as follows:

  • A new cough that doesn't go away
  • Shortness of breath
  • Coughing up blood, even a small amount
  • Headache
  • Chest pain
  • Hoarseness
  • Bone pain
  • Losing weight without trying

Operating hours of Dr. Chang Hyun

You can see Dr Chang Hyun between 11 am and 6 pm from Monday to Saturday. The doctor is not available on Sunday.

Procedures performed by Dr. Chang Hyun

The below-listed popular procedures for cancer treatment are performed by Dr. Chang Hyun

  • Cervical Cancer Treatment
  • Ovarian Cancer Treatment

The surgical oncologist can perform even the most complicated cases with ease. The doctor has reported a high success rate in performing various procedures with high precision and accuracy. The doctor also holds a rich experience in handling complex cases with ease. The specialist is proficient in using the latest techniques to perform the procedures. Minimally invasive surgery and open surgery are two ways of doing cancer surgery. In open surgery, a large incision is made to remove the tumor. In minimally invasive surgery, surgeons make a few small cuts to remove the tumor. The common techniques for minimally invasive surgery are laser surgery, cryosurgery, robotic surgery, laparoscopy, cryosurgery.

Qualification

  • Medical Graduate

Work Experiences

  • Vice Director, Patient-focused Cancer Treatment Hospital, Catholic Kwandong Univ. Intl. St. Mary's Hospital
  • Associate Professor, Catholic Kwandong Univ. Intl. St. Mary's Hospital(2017)
  • Professor, Seoun National University Bundang Hospital(2012-2014)
  • Global Team of Board Certified Surgeons and Medical Specialists
  • Written Second Opinion report delivered within 5 days
  • Option to avail the Video Consultation with the Lead Doctor of the board

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PROCEDURES

  • Adrenal Cancer Treatment
  • Cervical Cancer Treatment
  • Cholangiocarcinoma (Bile Duct Cancer)
  • Head & Neck Cancer Treatment
  • HIPEC
  • Lumpectomy
  • Malignant Mesothelioma Treatment
  • Nasopharyngeal Cancer Treatment
  • Ovarian Cancer Treatment
  • Papillary Thyroid Cancer Treatment
  • Penile Cancer Treatment
  • Rhabdomyosarcoma (RMS) Treatment
  • Small Intestine Cancer Treatment
  • Thymectomy
  • Vaginal Cancer Treatment
  • Vulvar Cancer Treatment

FREQUENTLY ASKED QUESTIONS

What area of specialization does Dr. Chang Hyun have?
Dr. Chang Hyun is a specialized Surgical Oncologist and is one of the most sought after doctors in Seoul, South Korea.
Does Dr. Chang Hyun offer Telemedicine Consultation through Medigence?
No, this doctor does not offer telemedicine via MediGence
How many years of experience does Dr. Chang Hyun have?
Dr. Chang Hyun is one of the most sought after specialists in South Korea and has over 18 Years years of experience.

FAQ's Related to Surgical Oncologist

What does a surgical oncologist do?

A surgical oncologist is a doctor who removes the tumor and adjacent tissues through surgery. They also perform some types of biopsies to diagnose cancer. Surgical oncologists can also perform surgeries to determine the areas cancer has spread. In some circumstances, surgical oncologists might also perform preventive surgery. In some cases, you may have surgery and get additional treatments like chemotherapy or radiation. In such cases, surgical oncologists are an important part of the patient’s cancer care team.

What are the tests required before and during consultation by a surgical oncologist?

The tests required before and during the consultation by a surgical oncologist include:

  • Laboratory Tests
  • Biopsy
  • Cancer Screening
  • Imaging Tests
  • Physical Exam

A biopsy is a procedure in which a piece of tissue from your body is removed to analyze it in a laboratory. It is an effective way to diagnose cancer.

When should you go to see a surgical oncologist?

You should see a surgical oncologist in case your primary care doctor refers you to one. The doctor may also tell you to visit a surgical oncologist for the diagnosis of cancer. Some specialized general surgeons can also perform surgery on various types of cancer. In the below-listed situations, you must seek assistance from a surgical oncologist:

  1. Unusual cancer like head or neck cancer.
  2. Complex cancer can spread to multiple body parts.
  3. Cancer recurrence
  4. Cancer that is difficult to treat
  5. For in-depth evaluation and treatment plan
  6. You want a second opinion about cancer diagnosis

Reviewer

Dr. Vijita Jayan
Dr. Vijita Jayan

BPT, MPT (Neuro)

18 Years of Experience

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

Last Reviewed - January 2026

Author

Alvina Hasan
Alvina Hasan

M.Pharm

2 Year of Experience

Alvina Hasan is a dedicated medical researcher and scientific writer with a strong foundation in pharmaceutical sciences. She holds a B.Pharm from Jamia Hamdard University and an M.Pharm in Quality Assurance from DIPSAR University.

With deep medical expertise and a strong interest in healthcare communication, she focuses on transforming complex clinical and scientific information into clear, engaging, and easy-to-understand narratives. She develops insightful healthcare articles and research-driven content designed to support both medical professionals and patients, helping bridge the gap between advanced medical knowledge and practical understanding.

Readers can explore her published research and articles here:

https://carcinogenesis.com/index.php/JOC/article/view/868

https://carcinogenesis.com/index.php/JOC/article/view/870

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