Asan Medical Center in Seoul is South Korea's largest multidisciplinary centre, known for high success rates in laparoscopic and Da Vinci robotic surgery for sigmoid adenocarcinoma. Treatment options include chemotherapy, targeted therapy, and GammaKnife radiation, offering both system-wide and local tumour control. International patients benefit from a personal coordinator and free transfers from Incheon Airport. The centre features advanced MRI, CT, and PET-CT equipment, ensuring thorough diagnosis and treatment planning for Australians seeking quality care overseas.