Specializations
Oncological Surgery
Obesity and Type 2 Diabetes Surgery
Anorectal Diseases Surgery and Treatment
Stomach Hernia Surgery
Colon and Rectum Surgery
Breast Diseases and Cancer Treatment
Thyroid and Parathyroid Diseases Treatment
Treatment of Stomach and Gallbladder Diseases
Posts and Affiliations
Clinical Director – Multidisciplinary Breast Unit Kliniken Essen-Mitte, Germany
Lead Breast Cancer Research Program, Kliniken Essen-Mitte
Executive Board Member of the AGO (Arbeitsgemeinschaft Gynäkologische Onkologie)
Additional Roles
ESMO Faculty – Breast Cancer
Member of AWO Gyn – Commission for plastic and reconstructive surgery
Speaker of the AGIMed – Commission for Integrative Medicine of the AGO
Member of the Organ Commission Mamma of the AGO
Scientific Director of the WSG study group
Global PI, Head of clinical investigations and trials 27
IDMC´s, Steering Boards national and international
Scientific committee of international and national symposia in breast cancer and surgical oncology
Organization Memberships
Memberships: European Society of Medical Oncology, American Society of Clinical Oncology,
European Academy of Senology, German Cancer Society, German Society of Gynecology and
Obstetrics, Working Group for Gynecological Oncology, German Society of Senology,
Publications
Peer reviewed Publications: 322
First/Senior Author: 38
h-Index/i10-Index 66/232
Congress Abstracts/Proceedings: 443
Books/Book Chapter: 59
Invited oral Presentations/Lectures: 1032
Dr Erdem Gelegen is an ophthalmologist with over 20 years of experience in cataract, refractive, retinal, glaucoma, and corneal/anterior segment care. He performs phacoemulsification with premium intraocular lenses. He provides laser vision correction for myopia, hyperopia, and astigmatism. He treats diabetic retinopathy, age-related macular degeneration, retinal detachment, keratoconus, and anterior segment disorders, including corneal transplants.
He graduated from Istanbul University Cerrahpaşa Faculty of Medicine in 1999. He completed his ophthalmology residency at Okmeydanı Training and Research Hospital in 2004. He is known for precise microsurgery and the use of advanced ophthalmic technologies.
Dr. Derya Zengin Metli is a physician specialized in physical therapy and rehabilitation. She graduated from Akdeniz University Faculty of Medicine. Her practice includes physical therapy and physiotherapy services. She also consults in English.
Her clinical scope includes musculoskeletal rehabilitation for back, neck, and joint pain, and herniated discs. She provides neurological rehabilitation for stroke and multiple sclerosis. She also offers post-surgical rehabilitation after orthopedic and neurosurgical procedures, sports injury prevention and treatment, and chronic pain management for fibromyalgia and arthritis.
Dyt. Yaren Nur Güngör is a dietitian. She graduated from the Faculty of Nutrition and Dietetics. She provides evidence-based, personalized nutrition counseling in English. She designs tailored programs for health promotion, disease management, and weight control.
Her clinical focus includes diet plans for diabetes, heart disease, thyroid disorders, and other metabolic issues. She also guides weight loss and gain and improves body composition. She offers sports nutrition and nutrition care for children and teens. She provides preventive nutrition with lifestyle counseling. Her approach is patient-centered and motivating.
Dr. Cevat Azeroglu is a radiologist. He graduated from the Tabriz University Faculty of Medicine in 1987. He completed his radiology specialization at Ondokuz Mayıs University in 2011. Born in 1959, he provides advanced imaging to support accurate, timely decisions for many specialties.
His expertise includes conventional radiology with X-rays for musculoskeletal and chest disease. He performs ultrasound of the abdomen, thyroid, vessels, and soft tissues. He interprets CT and MRI for neurological, cardiovascular, and oncologic conditions. He practices interventional radiology with image-guided, minimally invasive procedures. He also focuses on oncologic imaging for staging and follow-up. He is known for diagnostic precision, use of modern imaging tools, and strong teamwork.
Dermatologist Dr. Osman Serdar Akkaya graduated from Çukurova University Faculty of Medicine in 1981. He completed his dermatology specialization there in 1985. He has more than 35 years of experience and is among the most senior dermatologists in the region.
His practice includes general dermatology, such as psoriasis, eczema, acne, vitiligo, and urticaria. He focuses on dermato-oncology and performs surgery for benign and malignant skin tumors. He also offers cosmetic dermatology, including fillers, mesotherapy, and chemical peels. He provides laser and light-based treatments for vascular lesions, pigment disorders, scars, and hair removal. He treats geriatric skin conditions and chronic skin diseases.
Dr Nimet Ozcan is a dermatologist with over 10 years of experience. She graduated from the Erciyes University Faculty of Medicine in 2008. She completed her dermatology specialization at Ankara Numune Training and Research Hospital in 2014. She provides care in both medical and cosmetic dermatology.
Clinical focus: acne, eczema, psoriasis, and fungal and bacterial infections. Dermato-oncology with early detection and surgical excision of suspicious lesions. Dermal fillers, chemical peels, and mesotherapy. Laser treatment for vascular lesions, pigmentation disorders, and hair removal. Pediatric dermatology. Languages: English.
Dr. Mustafa Emiroglu is a general surgery specialist at Memorial Bodrum Hospital. He has significant experience from his work at Sağlık Bilimleri University Tepecik SUAM (2016–2023) and Kırşehir Hospital (1997–1999).
He earned his medical degree from Istanbul University Cerrahpaşa Faculty of Medicine. He completed his specialization at Tepecik Training and Research Hospital. Dr. Emiroglu is a member of the Turkish Society of Surgery, the Endocrine Surgery Association, and the Colorectal Surgery Association.
He has attended advanced courses, including the Europe Senology Academia. He has also received training in proctologic, hemorrhoidal, and oncoplastic breast surgery, as well as thyroid diseases.
Dr. Ozlem Yogurtcu is a general surgeon with extensive experience. She graduated from Dokuz Eylul University Faculty of Medicine. She completed her general surgery residency at Haseki Training and Research Hospital, 1st Surgical Clinic. She is fluent in English.
Her practice includes gastrointestinal surgery (gallbladder disease, hernias, appendicitis, other gastrointestinal conditions). It also includes endocrine surgery (thyroid, parathyroid, adrenal) and breast surgery (benign and malignant conditions). She treats emergency and trauma cases. She performs minimally invasive laparoscopic procedures.
She is known for precise surgery and a patient-centered approach.
2002 – 2008 – Siriraj Medical School, Mahidol University
2008 – 2013 – Department of Internal Medicine, Rajavithi Hospital
2013 – 2015 – Department of Cardiology, Internal Medicine Rajavithi Hospital
2019 – 2020 – Cardiology Intervention, Department of Cardiology, Internal Medicine Rajavithi Hospital
Languages: English and Thai
Dr. Taha Sonmez is a renowned aesthetic plastic and reconstructive surgeon with over 17 years of professional experience. He specializes in a variety of procedures including hand surgery, tissue transplants, rhinoplasty, liposuction, body shaping, and head and neck surgery. Dr. Sonmez has received recognition as the Best Male Plastic Surgeon in Turkey and is affiliated with several esteemed medical associations. His range of operations includes liposuction, breast lift, rhinoplasty (nose job), tummy tuck, otoplasty (ear surgery), botox injections, stem cell rejuvenation therapy, and various types of liposuction.
Dr. Osman Aktas has been serving as a general surgeon at Ataşehir Avicenna Hospital since 2005. Born in Kayseri in 1960, he graduated with his medical degree from Ankara University in 1983. Following his graduation, he fulfilled his military service in medical units for two years. He completed his general surgery residency at GATA from 1986 to 1990. After specializing in general surgery, He held key positions as head of general surgery departments and chief physician in several prominent military hospitals, including Tatvan, Diyarbakır, Ankara, and Manisa.
Dr. Osman has had a special focus on endoscopic surgery since 1995. He received advanced training in laparoscopic surgery techniques in Germany and has successfully performed a wide range of laparoscopic procedures. His expertise extends to gallbladder surgery, abdominal wall and inguinal hernia repairs, appendicitis, reflux and stomach surgeries, as well as complex cases such as gastrointestinal tumors, intestinal obstructions, and various other intestinal diseases, all managed through minimally invasive methods.
In 2002, Dr. Osman transitioned to the private sector, where he broadened his practice to include modern treatments for anal diseases like hemorrhoids, fistulas, and fissures, utilizing advanced techniques such as laser therapy.
Dr. Osman is also recognized for his significant contributions to oncological surgery. He has a wealth of experience in the surgical treatment of various cancers, including breast and thyroid cancer, where he has implemented new treatment methods that reduce the risk of complications. His surgical expertise spans critical cancer surgeries, such as the Whipple procedure for pancreatic cancer, colorectal cancer resections, gastric cancer, and other complex malignancies. Additionally, his skills in metabolic surgery have led to lasting outcomes for patients suffering from obesity and diabetes, ensuring a better quality of life through sustained weight loss and reduced risk of diabetes.
With his vast experience and advanced skills in both laparoscopic and cancer surgeries, Dr. Osman remains at the forefront of surgical excellence, offering innovative and comprehensive care to all his patients.
Dr. Volkan Tümentemur is a General Surgery specialist. He completed his medical degree in English at Karadeniz Technical University Faculty of Medicine in 2005. He is known for his advanced surgical skills and dedication to patient care.
Dr. Tümentemur has performed many successful surgeries. He is recognized for achieving high patient satisfaction. He works with top medical institutions and regularly updates his knowledge through ongoing training in general surgery.
Dr. Jumana Baryhe is a specialist in advanced aesthetic and hair restoration procedures. She performs Botox injections, non-surgical nose correction, FUE and DHI hair transplants, beard and eyebrow transplants, brow lifts, lip implants, and laser vaginal rejuvenation. Dr. Baryhe is known for her skill in minimally invasive techniques. Her patients report high satisfaction with their results.
Dr. Baryhe is dedicated to excellence in her field. She has completed hundreds of successful procedures. Her reputation is built on technical expertise and personalized care. She uses the latest methods and follows international standards in cosmetic medicine.