The American Society for Radiation Oncology (ASTRO) and the European Society for Radiotherapy and Oncology (ESTRO) have signed a memorandum of understanding to jointly develop a majority of their future clinical practice guidelines for radiation oncology.
The agreement, announced during the ESTRO Annual Congress in Stockholm, establishes a joint committee with representatives from each society to oversee topic selection and guideline development, as well as governance, authorship, and journal publication logistics, according to the organizations.
![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)
