Proton therapy developer Mevion Medical Systems has delivered a superconducting synchrocyclotron accelerator to the University of Oklahoma.
The accelerator is for the S250 proton therapy system currently being installed at the university's Peggy and Charles Stephenson Cancer Center, according to the firm. Mevion said this is the third single-room S250 proton therapy system it has delivered.
![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)
