Lung Cancer Stage 4 Doctors Abroad — Page 3

Assoc. Prof. Ayşe İrem Yasin, M.D., is a medical oncologist who specializes in solid tumors. Her clinical focus includes breast, lung, gastrointestinal, gynecologic, and urologic cancers. She also treats brain and other CNS tumors, soft tissue sarcomas, head and neck cancers, adenocarcinomas, melanoma, Merkel cell carcinoma, and cancers of unknown primary. She practices at Medipol Acıbadem District Hospital (2025–present). She previously worked at Şişli Etfal Training and Research Hospital (2023–2025).

She completed a Medical Oncology fellowship at Bezmialem Vakıf University (2019–2022). This followed an Internal Medicine residency at the same institution (2012–2016). Her international experience includes the Breast Cancer Unit at the University of Piemonte Orientale in Novara (2022). She also trained at Basel University Hospital, Cleveland Clinic, and Harvard Medical School. She holds the ESMO Board Certificate (2022).

Professor Gokhan Haciibrahimoglu is a specialist in thoracic surgical oncology who leads complex lung and tracheal interventions at Medical Park Göztepe Hospital Complex.

• Performs VATS (Video Assisted Thoracoscopic Surgery) – a keyhole approach using small incisions for faster recovery and less pain
• Completed a prestige fellowship in thoracic-vascular surgery and transplantation at the University of Paris-Sud
• Specialises in managing disorders of the mediastinum and pleural diseases involving the lung lining
• Active member of the European Society of Thoracic Surgeons
• Published 13 papers in international journals focusing on chest and lung surgery

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.

Professor Adnan Sayar specialise in robotic and thoracoscopic surgery for complex lung cancers at Liv Hospital Ulus.

• Performs minimally invasive surgery using tiny incisions for faster recovery and less pain
• Expert in trachea surgery and managing advanced pleural diseases in the lungs
• Specialises in lung biopsies to ensure accurate diagnosis for staged treatment
• Trained at the prestigious Istanbul University Faculty of Medicine

Associate Professor Duygu Derin is a leading medical oncologist at Liv Hospital Ulus with significant expertise in managing advanced-stage lung tumours.

• Specialises in complex chemotherapy and targeted drug protocols for stage 4 cases
• Member of the European Society for Medical Oncology (ESMO)
• Published 30+ scientific papers on improving malignancy treatment outcomes
• Trained at Istanbul University Faculty of Medicine – one of Turkey's oldest medical schools
• Expert in multidisciplinary care for aggressive lung and gastrointestinal cancers

1. Medical Interests and Activities 
2. • Lung Cancer (Postdoctoral fellowship, MD Anderson Cancer Center, Houston, TX, USA)
3. • Interventional Bronchoscopy (Division of Pulmonary and Critical Care Medicine, Johns Hopkins University, Baltimore, MD, USA)
4.  
5. Education and Experience 
6. • Department of Thoracic Diseases, Liv Hospital, Ulus
7. • Faculty of Medicine, İstanbul Bilim University
8. • Ministry of Health Süreyyapaşa Thoracic Diseases Training and Research Hospital
9. • Faculty of Medicine, Marmara University Memberships
10. • IASLC (International Association for the Study of Lung Cancer)
11. • ACCP (American College of Chest Physicians)
12. • TAKD (Turkish Lung Cancer Society) (Executive Board Member)
13. • TTD (Turkish Thoracic Society)
14. • TÜSAD (Turkish Respiratory Research Society)
15.  
16. Memberships 
17. • IASLC (International Association for the Study of Lung Cancer) 
18. • ACCP (American College of Chest Physicians) 
19. • TAKD (Turkish Lung Cancer Society) (Executive Board Member) 
20. • TTD (Turkish Thoracic Society) 
21. • TÜSAD (Turkish Respiratory Research Society) 
22.  
23. Researches and Publications 
24. • International: 48 
25. • National: 60 
26. • Authorship for Books and Book Chapters at National Level: 4 
27. • Medical Fellowship, TEV Orhan Birman, MD 1998 
28. • “Fellow in American College of Chest Physicians” Title, 2009