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In December 2018, he was awarded the academic title of Associate Professor. Since then, his clinical focus has been centered on advanced endocrine surgery, with particular expertise in the surgical treatment of thyroid cancer and thyroid diseases, parathyroid surgery, and adrenal gland surgery. In addition to endocrine procedures, he is highly experienced in the diagnosis, follow-up, and treatment of breast diseases, including breast cancer and oncoplastic breast surgery, where oncological safety is combined with aesthetic outcomes. With more than 10 years of experience in laparoscopic and minimally invasive surgery, as well as endoscopic diagnostic and therapeutic procedures, he applies modern surgical techniques to ensure safer operations, faster recovery, and improved patient comfort. To date, he has successfully performed over 2,000 surgical procedures across these fields. Medical Interests & Areas of Expertise Surgical treatment of thyroid and parathyroid diseases and cancers Surgical treatment of adrenal gland diseases and cancers Follow-up and treatment of benign breast diseases Breast cancer surgery and oncoplastic breast surgery Laparoscopic and minimally invasive surgery Diagnostic and therapeutic gastrointestinal endoscopy He is recognized for his precise surgical technique, multidisciplinary approach, and commitment to delivering safe, effective, and patient-focused care in complex endocrine and breast surgery.

Throughout his career, he has focused extensively on pancreatic diseases and surgery, gallbladder and bile duct surgery, liver cancer surgery, stomach cancer surgery, and obesity–metabolic surgery. With a strong background in complex gastrointestinal and hepatobiliary procedures, he has carried out a large number of highly successful operations. To date, he has performed over 400 pancreatic and gastric cancer surgeries, more than 200 liver surgeries, and numerous procedures related to gallbladder and biliary tract diseases. His experience also includes obesity and metabolic surgery, advanced endoscopic treatments, and kidney transplantation. In addition to surgical practice, he has a growing professional interest in aging medicine and stem cell therapies, following developments in regenerative and longevity-focused treatments. His work is characterized by a comprehensive, patient-centered approach that combines surgical precision with up-to-date medical technologies. Medical Interests & Areas of Expertise Pancreatic surgery Gallbladder and biliary tract surgery Liver disease and liver cancer surgery Stomach diseases and stomach cancer surgery Obesity and metabolic surgery Endoscopic treatment methods Kidney transplantation Aging and stem cell treatments With extensive experience across high-complexity surgeries, he is recognized for delivering advanced, reliable, and outcome-focused care in gastrointestinal and transplant surgery.

Op. Dr. Yasemin Ongun is an experienced Otorhinolaryngologist (ENT Specialist) with a strong surgical background across a wide range of ear, nose, and throat conditions. Throughout her career, she has successfully performed numerous operations, with particular expertise in both functional and aesthetic nasal surgery, as well as advanced endoscopic procedures. Her clinical practice includes rhinoplasty, endoscopic sinus surgery, and endoscopic endonasal dacryocystorhinostomy (DCR) for the treatment of tear duct obstruction. She also has extensive experience in pediatric ENT surgery, including tonsil and adenoid procedures and ear tube placements. In addition, Op. Dr. Ongun treats patients with snoring and sleep apnea, performs otoplasty (prominent ear surgery), and manages a broad spectrum of hearing and ear disorders. Her approach combines modern surgical techniques with careful, patient-centered planning to achieve safe and lasting results. Medical Interests & Areas of Expertise Rhinoplasty Endoscopic sinus surgery (FESS) and sinus surgery Endoscopic endonasal dacryocystorhinostomy (tear duct obstruction surgery) Hearing loss diagnosis and ear surgery Otoplasty (prominent ear correction) Tonsil and adenoid surgeries (pediatric ENT diseases) Nasal obstruction surgeries Snoring and sleep apnea surgery Allergy-related ENT conditions Nasal polyposis Salivary gland diseases Microlaryngeal surgery (surgical interventions on the vocal cords) With her broad surgical expertise and experience in both adult and pediatric ENT care, Op. Dr. Yasemin Ongun is recognized for delivering comprehensive, precise, and patient-focused treatment across the full spectrum of otorhinolaryngology.