Proton Therapy for Chordomas and/or Chondrosarcomas

A Clinical Outcomes Protocol of Proton Beam Radiation Therapy for Chordomas and/or Chondrosarcomas of the Base of Skull and/or Spine

The purpose of this study is to collect information from medical records to see what effects proton beam radiation has on cancer and analyze possible side effects.

Data collection will be obtained from the patient's medical records including initial evaluation, pathology report, dosimetry information, radiotherapy completion records and follow-up.

Inclusion Criteria:

• Histologically proven chordoma or chondrosarcoma.
• Sites: base of skull and/or spine.
• Age 18 years or older.

Exclusion Criteria:

• Previous radiation to the head and neck or brain.
• Evidence of metastatic disease.