A South Korean patient has received the country's first treatment using radiation oncology firm Varian Medical Systems' Halcyon radiotherapy system.
Korea University Medical Center Anam Hospital in Seoul used the system to treat a patient with liver cancer, the company said. The hospital also used Varian's Aria oncology information system and Eclipse treatment planning software.
![A 53-year-old patient (patient number four) with a recurrent pituitary adenoma with extension of a cystic component of disease to the medial temporal lobe apparent on MRI (contoured in blue), and extension of disease to the left sphenoid bone and orbital apex apparent on [68Ga]Ga-DOTA-TATE (contoured in yellow).](https://img.auntminnie.com/mindful/smg/workspaces/default/uploads/2026/04/pituitary-tumor.QGsEnyB4bU.jpg?auto=format%2Ccompress&dpr=2&fit=crop&h=167&q=70&w=250)
