FDG-PET scans may be used to assess normal tissue damage following chemoradiotherapy.

The TS-TR variations exert an important influence on survival following chemoradiotherapy in ESCC patients.

Advances in knowledge: Central relapse remains the predominant pattern of failure following chemoradiotherapy for glioblastomas.

During the 6 month period following chemoradiotherapy, gliomas frequently develop new areas of contrast enhancement, which are due to treatment effect rather than tumor progression.