The Halcyon™ Radiotherapy System is the newest cancer treatment system by Varian Medical Systems. This state-of-the-art technology is designed to ensure high-quality radiotherapy treatments that are delivered to patients quickly, accurately, safely and comfortably.

Halcyon is of the first of its kind to deliver image-guided, intensity-modulated radiation therapy (IMRT) up to 4x faster than standard machines. This leading technology can precisely target a wide range of cancers, including prostate, breast, head and neck, along with many other forms.


One of the major benefits of the Halcyon is its efficiency. Compared to conventional machines that could take anywhere from 30 to 45 minutes, Halcyon is able to deliver quick, image-guided treatment to patients in about 2 minutes total. This is because treatments are completed in just 9 steps instead of 30, which would be typical of conventional machines.

This all-new system is designed to speed up every step of the treatment process, without ever sacrificing quality. Bottom line, minimizing a patients’ time on the table optimizes the delivery and success of treatment and allows the patient to go back to their daily lives without disruption.


Treatment with Halcyon is noninvasive, and removes cancer without ever involving surgery. Using powerful but individualized radiotherapy customized for the patient, it delivers accurate treatment doses in the safest most efficient manner. The machine enables varying intensities for different cancer treatments, achieving an unprecedented customization in the level of radiation suited best for you cancer.

With a unique human-centered design, Halcyon is able to use finely-shaped beams to precisely targets tumors only, so that any dangerous exposure to surrounding healthy tissue and organs is significantly minimized. This is key to maintaining your general health while undergoing your treatment plan and to ensure an overall better quality of life.

Due to Halcyon’s quick and noninvasive approach, there is generally no hospitalization or recovery period needed. These treatments are done in an out-patient bases at a time that works best for you.


We are proud to announce that currently, The Medical Group of South Florida is the only cancer treatment center within the Palm Beach County with access to this game-changing treatment platform. The Halcyon system is a brand-new weapon in the fight against cancer that we are more than proud to now be able to offer you. Let’s fight this cancer together. If you or someone you know is battling cancer, then it’s time to schedule a consultation with Dr. Anthony Addesa.

Dr. Anthony Addesa has over 20 years of radiation oncology experience, with an impressive academic background. He completed his training at Harvard Medical School where he was awarded an ASTRO fellowship to sub-specialize in stereotactic radio-surgery – one of only two such fellowships awarded nationally each year. More recently, Dr. Addesa was selected by his peers as one of the top cancer doctors in Florida for 2018 and 2019.

Now as the Director of Radiation Oncology at The Medical Group of South Florida, Dr. Addesa is once again treating patients in Palm Beach County. Even if you have just been diagnosed with cancer, schedule a consultation to learn about your options.

Questions? Talk to Dr. Anthony Addesa or call 561-622-6111 to find out more information.

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