Dr. Baha Zengel is a general surgeon with expertise in breast, gallbladder, thyroid diseases, and hernia repairs. He graduated from Ege University Faculty of Medicine in 1990. In 2004, he earned a doctorate in Basic Oncology from Dokuz Eylül University. He became an Associate Professor of General Surgery in 2014 through the Inter-University Board.

Dr. Zengel is skilled in advanced surgical procedures. His experience includes skin and breast-conserving mastectomy, oncoplastic breast surgery, laparoscopic cholecystectomy, sentinel lymph node biopsy, and ROLL/SNOLL techniques. He has held important positions at Izmir Bozyaka Training and Research Hospital, including Education Officer.

He is a member of several professional associations. He serves on the Board of Directors of the Aegean Region Surgery Association and is a founding board member of the Basic Oncology Association.

Dr. Metin Özgen is a Professor of Rheumatology at Ondokuz Mayıs University. He completed his training in internal medicine and rheumatology at Fırat University. In 2012, he became an Associate Professor at Malatya İnönü University. He was promoted to Professor at Ondokuz Mayıs University in 2020.

Dr. Özgen focuses on diagnosing and treating conditions such as Familial Mediterranean Fever, Ankylosing Spondylitis, Behçet's Disease, Rheumatoid Arthritis, and Systemic Lupus Erythematosus. He is experienced in infusion therapies, musculoskeletal ultrasonography, and ultrasound-guided joint injections.

He is an active member of the Turkish Rheumatology Association. Dr. Özgen has made important contributions to both clinical practice and academic research in rheumatology.

Education Information

• Postdoctoral Medicine, Istanbul University, Istanbul Medical Faculty, Division of Medical Sciences, Turkey (2018 - Ongoing)
• Expertise in Medicine, Istanbul University, Istanbul Medical Faculty, Division of Medical Sciences, Turkey (2013 - 2018)
• Undergraduate, Istanbul University, Cerrahpaşa Medical Faculty, English Medicine Program, Turkey (2007 - 2013)

Foreign Languages

• French – B1 (Intermediate)
• English – C1 (Advanced)

Research Areas

• Medicine, Health Sciences
• Internal Medicine Sciences
• Internal Diseases, Hematology, Nephrology, Oncology
• Immunology and Rheumatology

Academic Titles / Tasks

• Research Assistant, PhD, Istanbul University, Istanbul Medical Faculty, Department of Internal Medicine (2013 - Ongoing)

Asst. Prof. Mustafa Serdar Sağ, M.D.

Rheumatology
 

Areas of Expertise and Interest

• Physical Medicine and Rehabilitation
• Ankylosing Spondylitis and Spondyloarthropathies
• Rheumatoid Arthritis
• Musculoskeletal Ultrasound
• Connective Tissue and Autoimmune Diseases

Education and Career

• M.D. – Ondokuz Mayıs University Faculty of Medicine (2002)
• Specialization in Physical Medicine and Rehabilitation – Bezmialem Vakıf Gureba Training and Research Hospital (2005–2010)
• Subspecialization in Rheumatology – Sakarya University Faculty of Medicine (2011–2015)

Professional Appointments

• 2005–2010 | Bezmialem Vakıf Gureba Training and Research Hospital – Dept. of PM&R
• 2010–2011 | Vakfıkebir State Hospital, Trabzon
• 2015–2018 | Sakarya University Education and Research Hospital – Rheumatology Specialist
• 2018–2020 | Medical Park Hospitals – Rheumatology Clinic, Istanbul
• 2020–Present | Medipol University Faculty of Medicine – Dept. of Physical Medicine and Rehabilitation, Division of Rheumatology

Certificates and Memberships

• Board Certification in Physical Medicine and Rehabilitation
• Board Certification in Rheumatology
• Probable Member – Turkish Society for Rheumatology
• Continuous Medical Education in Inflammatory Joint Diseases and Autoimmune Rheumatology

Dr. Mustafa Serdar Sağ has contributed to a total of 8 scientific works, including:

• 4 international peer-reviewed journal articles,
• 4 national articles and congress presentations.

His international studies have been published in high-impact journals such as 

International Journal of Rheumatic Diseases, Clinical Rheumatology, European Journal of Rheumatology, and Archives of Rheumatology.His national contributions include publications on rituximab treatment, affective temperaments in complex regional pain syndrome, and presentations at major international congresses, including EULAR and the 10th International Congress on Spondyloarthritides.

• AREAS OF INTEREST
• Spine surgery
• Scoliosis
• Kyphosis
• Childhood spinal diseases
• Degenerative spine diseases
• Lumbar cervical disc herniation
• Knee hip joint disorders
• Orthopedic trauma surgery

• Education and Specialization
• 2010 - Cerrahpasa Faculty of Medicine - Medical Education
• 2016 - Medeniyet University Goztepe Training and Research Hospital - Specialization

• Experience
• 2016 - 2022 - Sisli Hamidiye Etfal Training and Research Hospital
• 2015 -2016 - Chicago Loyola University, Illinois, USA

• Courses and Certificates
• 13.12.2019-14.12.2019 Turkish Spine Society Eurospine Accredited Education Modules
• 08.11.2019-10.11.2019 Turkish Spine Society Eurospine Accredited Education Modules
• 31.08.2015-04.09.2015 Basic Microsurgery Course, MICROSURGERY EDUCATION-RESEARCH LABORATORY
• AO Trauma Course-Basic Principles of Fracture Management
• 07.06.2014-10.06.2014 Fracture Management, Kodi Kojima Chairperson AOTrauma Education Commission
• 01.03.2013-02.03.2013 Instrumentation in Arthroscopic Surgery

• Professional Memberships
• Turkish Orthopedics and Traumatology Association (TOTBİD)
• Turkish Medical Association - Istanbul Medical Chamber

Uzm. Dr. Erkan Göcen is a Radiation Oncology Specialist at Çerkezköy Private Optimed Hospital (Optimed Health Group). He graduated from İstanbul University, İstanbul Faculty of Medicine (Çapa) in 2003.

Career: He trained and practiced in Radiation Oncology from 2010 to 2012. He worked in public and private health institutions from 2012 to 2016. He served in the private medical sector as a Radiation Oncology Specialist from 2016 to 2023. He has been at Optimed Hospital since 2024.

Clinical interests: cancers of the brain, head and neck, esophagus, stomach, colorectal, pancreas, prostate, bladder, lung, soft tissues (sarcomas), skin, uterus and cervix, and breast. Affiliations: Turkish Society for Radiation Oncology (TROD) and Tekirdağ Medical Chamber. Languages: English and Turkish.

Dr. Muhammed Mustafa Atci is an Associate Professor of Medical Oncology at İstinye University, Liv Hospital Topkapı (2025–present). He previously served as Associate Professor and Education Coordinator at Prof. Dr. Cemil Taşcıoğlu City Hospital (2023–2025). He was also a Medical Oncologist there (2018–2021).

He has been a member of ASCO and the Turkish Society of Medical Oncology since 2018. He is the author or co-author of 19 peer-reviewed international papers on colon, breast, gastric, pancreatic, lung, thyroid, sarcoma, and colorectal cancers.

Notable works include a multicentre study on stage IIB colon cancer survival (Journal of Chemotherapy). He also studied the De Ritis ratio for lung metastasis in testicular cancer (Current Urology). His prognostic studies used PET/CT, MSI, lymph node ratio, and metabolic tumor volume.

Dr. Ornicha Thititagul (Dr. Faangkaow) is a geriatrician and lecturer in the Geriatric Medicine Division at Siriraj Hospital, Mahidol University. She practices at Siriraj Samut Sakhon Geriatric Healthcare Center and Siriraj Piyamaharajkarun Hospital.

Accreditations include: M.D. (Second Class Honors, 2017); Diplomate, Thai Board of Internal Medicine (2021); WHO‑SEARO ICOPE Master Trainer (2021). Additional credentials: Diplomate in Geriatric Medicine (2023); Diplomate, International Board of Lifestyle Medicine (2024).

Research highlights include: a randomized controlled trial on oral nutritional supplements in older adults (Geriatrics, 2024); PG‑SGA versus MNA in hepatocellular carcinoma (Support Care Cancer 33, 116, 2025); and Thailand’s first abacavir hypersensitivity case report (J Med Assoc Thai, 2021). She was on the host team and served as a moderator at the 10th Asian Conference of Frailty and Sarcopenia in 2024.

EDUCATION:

2014 ADNAN MENDERES UNIVERSITY FACULTY OF MEDICINE, CHILD HEALTH AND DISEASES, CHILD NEUROLOGY

2011 IZMIR EDUCATION AND RESEARCH HOSPITAL, CHILD HEALTH AND DISEASES

2011 Izmir Tepecik Education and Research Hospital, Child Health and Diseases

2004 DICLE UNIVERSITY, FACULTY OF MEDICINE

EXPERIENCE:

2018 Istanbul Medipol Hospital

2017 - 2018 Kartal Education and Research Hospital

2014 - 2016 Denizli State Hospital

2011 - 2014 Aydin Adnan Menderes University Faculty of Medicine Hospital

2006 - 2011 Izmir Tepecik Education and Research Hospital

2011Izmir Education and Research Hospital

Academic Details

Faculty / University
19 Mayis University, Faculty of Medicine, Samsun – Turkey

Date of Graduation
1992

Postgraduate Training
Institution: Department of Radiology, Faculty of Medicine, Erciyes University, Kayseri – Turkey
Supervisor in Charge of Training: Mustafa Ozturk
Training Period: From 1993 to 1998
Title of Thesis: Evaluation of Lower Extremity Artery-Occlusive Disease by MR Angiography

Accreditation

Radiology Specialist: 1998, The Ministry of Health of Turkey

Associate Professor: 2003, Interuniversity Committee

Academic Experience

Residency: Department of Radiology, Erciyes University, Kayseri – Turkey (1993 to 1998)

Private Practice: Maternal and Children Hospital, Sivas – Turkey (1998–2000)

Academic Positions:

2000 to 2003: Assistant Professor of Radiology, Firat University, Elazig – Turkey

2003 to 2009: Associate Professor of Radiology, Firat University, Elazig – Turkey

2009 to 2010: Professor of Radiology, Firat University, Elazig – Turkey

2010 to 2015: Professor of Radiology, Chairman, Bezmialem Vakif University, Istanbul – Turkey

2015 to 2016: Professor of Radiology, Chairman, Yeditepe University, Istanbul – Turkey

2017 to Present: Professor of Radiology, Interventional Radiology Unit, Bahçelievler Medical Park Hospital, Altınbaş University, Istanbul – Turkey

Fellowship

Institution: Department of Radiology, University Hospital of Cleveland, Case Western Reserve University, Cleveland, Ohio, USA

Duration:  2004 to 2005

Position: Research Fellow – Ultrasound & CT (Body)

Professional Memberships

-Turkish Society of Radiology

-Medical Ultrasound Society of Turkey

-Turkish Society of Radiology, Abdominal Radiology Study Group

-ESGAR – European Society of Gastrointestinal and Abdominal Radiology (Fellow)

-ESUR – European Society of Urogenital Radiology (Fellow)

-ESR – European Society of Radiology

-Turkish Society of Magnetic Resonance

-Turkish Society of Radiology, Urogenital Radiology Study Group

-Turkish Society of Interventional Radiology

-Korean Society of Radiology (International Member)

-Radiological Society of North America (RSNA) – Corresponding Member

Prizes and Awards

European Congress of Radiology (ECR) 2002, Vienna – Image Interpretation, 3rd Prize

Interpretation Corner of European Radiology 2003 – 2nd Prize

Cases of the Day – ESGAR 2007, Lisbon, Portugal – 2nd Prize

Cases of the Day – ESGAR 2009, Valencia, Spain – 1st Prize