Dr. Otgonbayar Lkhamsuren

Dr. Otgonbayar Lkhamsuren is a surgeon at the National Cancer Centre of Mongolia in Ulaanbaatar, the country's dedicated oncology institution. With 13 years of surgical experience, he specializes in oncologic surgery, managing Mongolia's high burden of liver and gastric cancer.

Dr. Otgonbayar trained at the Health Sciences University of Mongolia before completing his surgical training and undertaking a Certificate in Oncologic Surgery in Japan — reflecting Mongolia's strong medical education partnership with Japan. His Japanese training gave him exposure to the surgical management of gastric cancer, which has some of the world's highest incidence rates in both Japan and Mongolia.

Mongolia has one of the world's highest rates of liver cancer, driven by the extremely high prevalence of hepatitis B and C. Dr. Otgonbayar performs liver resection for hepatocellular carcinoma at the National Cancer Centre, providing life-extending surgical options for Mongolian patients with primary liver cancer.

His general surgery practice also covers cholecystectomy, thyroid surgery, and colorectal cancer surgery, providing essential surgical oncology services for Mongolia's national cancer programme.

Dr. Otgonbayar earned his MD from the Health Sciences University of Mongolia and completed his MS in General Surgery at Mongolia's main teaching hospitals. He completed a Certificate in Oncologic Surgery at a Japanese cancer surgery centre through the Mongolia-Japan medical education exchange program.

He participates in continuing surgical education through the Mongolian Surgical Society and has attended oncologic surgery training workshops supported by the Japan International Cooperation Agency (JICA) in Mongolia.

Dr. Otgonbayar's primary focus is oncologic surgery. He performs liver resection for hepatocellular carcinoma and colorectal liver metastases, gastrectomy (partial and total) for gastric cancer, colorectal resection for colon and rectal cancer, and thyroidectomy for thyroid malignancy.

His general surgery practice includes cholecystectomy for gallbladder disease, hernia repair, and bowel resection for benign conditions. He participates in the National Cancer Centre's multidisciplinary tumour boards, coordinating surgical decisions with oncology and radiation therapy teams.

For patients with advanced cancer requiring palliative surgical procedures — including biliary bypass, gastric outlet bypass, and colostomy for obstruction — he provides symptom-directed surgical palliation.

Dr. Otgonbayar has contributed to the Mongolian Medical Journal and has presented at the Mongolian Surgical Society Annual Conference. His clinical interests include surgical outcomes for hepatocellular carcinoma in Mongolia and the surgical management of gastric cancer at the National Cancer Centre.

He participates in Mongolia-Japan collaborative research through JICA health programs and contributes to Mongolia's national cancer registry data collection.

Dr. Otgonbayar sees patients at the National Cancer Centre of Mongolia. He consults in Mongolian, Japanese, and English. Patients from Mongolia's Russian border regions and from the Chinese community in Ulaanbaatar access cancer surgical services at the National Cancer Centre.

For patients whose cancer is beyond local surgical capability, he facilitates referrals to South Korean and Japanese cancer centres. Video consultations are available for surgical second opinions and post-operative follow-up.

Dr. Otgonbayar has been recognized by the National Cancer Centre of Mongolia for contributions to oncologic surgery. He is a member of the Mongolian Surgical Society and has participated in JICA-supported surgical training programs in Mongolia, contributing to cancer surgery capacity building.