Thyroid function tests (including T3, T4, TSH) Doctors Abroad — Page 3

Dr. Raanan Berger is the Director of the Cancer Center at Sheba Medical Center. He was listed in Forbes Israel’s “Best Doctors” in 2025. Dr. Berger specializes in genitourinary oncology and radiates complex prostate tumors. He completed a postdoctoral fellowship at the Dana-Farber/Harvard Cancer Institute.

• Heads the clinical research unit focusing on molecular oncology.
• Co-authored over 20 peer-reviewed papers on prostate cancer and BRCA mutations.
• Member of the American Society of Clinical Oncology (ASCO).
• Performs systemic therapy and radiotherapy at a Top-10 globally ranked hospital.

Dr. Kim Yeonsun is an endocrinologist and Head of the Department of Endocrinology at Naeun Hospital. He treats diabetes, thyroid disease, metabolic syndrome, high cholesterol, osteoporosis, and other endocrine disorders.

He earned his medical degree from Seoul National University College of Medicine. He completed graduate training in internal medicine at Gachon University. He then trained as a clinical fellow in endocrinology at Samsung Medical Center.

He previously served as Head of Internal Medicine at Seoul Red Cross Hospital. He was also a professor of endocrinology and metabolism at Gachon University Gil Medical Center. He is a regular member of the Korean Endocrine Society and the Korean Diabetes Association.

Dr. Erkan Karatas is an ENT and maxillofacial surgeon at Atlas University Hospital in Istanbul. He specializes in skull base surgery and cochlear implant placement. Dr. Karatas has contributed to over 100 medical articles. He completed specialized training at prestigious centers in the US, Germany, Italy, and Switzerland.

• Member of 11 professional associations, including the American Academy of Otolaryngology.
• Expert in complex surgeries for thyroid, tongue, and larynx cancers.
• Performs specialized procedures like stapedectomy, tympanoplasty, and orthognathic surgery.
• Works at an AACI-accredited hospital that treats 565,000 patients annually.

Professor Philipp Riss won the Sandoz Award for Thyroid Research. He leads the surgical endocrinology group at Vienna General Hospital.

• Provides endocrine testing to measure T3, T4, and TSH hormone levels
• Heads the Department of Endocrine Surgery at the Austrian Society for Endocrinology
• Earned the Venia Docendi Award, the highest academic qualification in Europe
• Specializes in surgery for autoimmune thyroiditis and toxic goiter conditions
• Directs surgical oncology research for the Austrian Society of Surgery

Dr. Mucahit Gur is an internal medicine specialist at Emsey Hospital in Istanbul. He applies specialized protocols for thyroid function tests and chronic metabolic health.

• Treats autoimmune thyroiditis and diffusive toxic goiter using specific medical protocols
• Coordinates radioiodine therapy to treat overactive thyroid cells
• Provides endocrine diagnostics for conditions like adrenal adenoma and diabetes
• Uses 3 Tesla MRI imaging for high-resolution diagnostic views
• Member of the Turkish Medical Association

Dr. Zulfu Sertkaya is an associate professor and andrologist at Andro Expertise in Istanbul. He holds the FEBU title from the European Association of Urology. Dr. Sertkaya focuses on male health, sexual function, and aesthetic urological procedures. He treats patients at his clinic and performs surgeries at affiliated hospitals.

• Earned Fellow of the European Board of Urology (FEBU) status.
• Specialize in andrology, male sexual health, and aesthetic urology.
• Performs penile implant surgery and varicocelectomy for infertility.
• Works at a clinic accredited by the Turkish Medical Association.

Dr. Brenda Pastrana is a surgical oncologist at the JCI-accredited Galenia Hospital in Cancún. She specializes in breast, thyroid, and digestive system cancers. Dr. Pastrana is board-certified by CONACEM. She holds a medical degree from the Universidad Autónoma de México.

• Performs mastectomies, liver resections, and complex colon cancer surgeries.
• Treats patients at a facility holding Accreditation Canada Diamond Status.
• Serves as a university teacher at Universidad Anáhuac.
• Member of the Mexican Society of Oncology (SMEO).

Dr. Didem Karacetin is a radiation oncologist at Biruni University Hospital in Istanbul. She completed clinical training at the Princess Margaret Hospital in Toronto. Dr. Karacetin is a former Head of the Department of Radiation Oncology at Health Sciences University. She specializes in intraoperative radiotherapy for breast cancer and brachytherapy for gynecological tumors.

• Holds a Master’s degree in Phytotherapy from Istanbul University.
• Certified in Hydrogel SpaceOAR applications for prostate cancer treatment.
• Treats lung, brain, and gastrointestinal cancers using targeted radiation.
• Practices at Biruni University Hospital, which holds TEMOS and ISO quality certifications.

Dr. Elnur Sahibov is a specialist in radiation oncology at Emsey Hospital. He provides thyroid function tests to monitor hormone health during specialized treatments.

• Trained at Marmara University Faculty of Medicine
• Completed expert specialization in radiation oncology
• Studied medicine in English to engage with global research
• Experienced in balancing hormone levels during complex therapies

Dr. Nail Paksoy is an associate professor of medical oncology at Medipol Bahçelievler Hospital. He is board-certified by the European Society for Medical Oncology (ESMO). Dr. Paksoy specializes in lung, breast, and gastrointestinal cancers. He uses modern immunotherapy and targeted therapy protocols. His clinic is JCI-accredited for high safety standards.

• Served as a subinvestigator in over 8 international clinical trials for Roche and Pfizer.
• Authored over 40 research articles in journals indexed by SCI and SSCI.
• Completed dual fellowships in allergy-immunology and medical oncology.
• Treats complex sarcomas and renal cell carcinomas with systemic therapies.

Dr. Ayse Kubat Uzum is an endocrinologist at Biruni University Hospital in Istanbul. She serves as Vice President of the Turkish Society of Endocrinology and Metabolic Diseases. Dr. Uzum specializes in treating diabetes, thyroid nodules, and pituitary gland disorders. She conducts research on metabolic parameters following gastric bypass surgery.

• Earned awards for clinical research at the National Diabetes Congress.
• Treats complex conditions like autoimmune thyroiditis and adrenal adenomas.
• Member of the European Society of Endocrinology and the Endocrine Society.
• Works at Biruni University Hospital, a TEMOS-accredited facility in Turkey.

Dr. Atakan Topcu is a medical oncologist at Medipol Acibadem District Hospital in Istanbul. He specializes in treating solid tumors including lung, breast, and colorectal cancers. Dr. Topcu is an Associate Professor with over 50 peer-reviewed scientific publications. He sits on the Editorial Board of the medical journal BMC Cancer.

• Expertise in immunotherapy, targeted therapies, and geriatric oncology care.
• Treats cancer-related malnutrition, cachexia, and sarcopenia.
• Maintains active membership in the European Society for Medical Oncology (ESMO).
• Works at a JCI-accredited hospital specializing in advanced oncology treatments.

Dr. Antonia Artigues-Barcelo is an Internal Medicine Consultant at Dubai London Hospital. She is an Adjunct Clinical Associate Professor at Mohammed Bin Rashid University. Dr. Artigues-Barcelo specializes in autoimmune systemic diseases and infectious disease management. She holds a medical degree from the Universitat Autònoma de Barcelona.

• Acts as a member of the Middle East and North Africa Stroke Organization.
• Treats complex conditions like Viral Hepatitis, thyroid disorders, and respiratory diseases.
• Developed specialized units for palliative care and autoimmune systemic diseases.
• Works at JCI-accredited Dubai London Hospital with 35 years of regional history.

Dr. Ilker Tolga Özgen is a professor of pediatric endocrinology at Biruni University Hospital in Istanbul. He won multiple first prizes for research on Turner syndrome and precocious puberty. Dr. Özgen treats growth retardation, diabetes, and thyroid disorders. He serves patients at a TEMOS-accredited university hospital in a modern campus.

• Specializes in puberty problems and menstrual irregularities in adolescent girls.
• Treats metabolic issues including obesity and adrenal gland disorders.
• Clinical focus includes pituitary disorders and genital abnormalities in boys.
• Member of the Pediatric Endocrinology and Diabetes Association.