The best option for treatment of anal cancer is chemoirradiation. FDG-PET
detects the primary tumor and metastatic involved lymph nodes better and
more frequently than CT only. During last decade, fusion of different
imaging modalities became important factor in radiotherapy treatment
planning. Patient was diagnosed for squamous cell carcinoma by colonoscopy
and FDG/PET followed by histopathological confirmation. A precise
determination of target volume is very important in radiotherapy. In recent
years higher utilization of FDG-PET CT fusion in radiotherapy treatment
planning of anal cancer is recorded. Image registration and fusion between
CT for radiotherapy treatment planning and FDG PET can help better
visualization and especially in the determination of boost target volume. We
observed much better detection of affected lymphatics by the data obtained
by image co-registration of PET and CT data. This fact allowed us to
increase dose prescribed to tumor and affected lymph nodes. PET is very
important imaging modality for patients with anal canal cancer. FDG-PET has
proved to be important tool for the radiotherapy treatment planning of anal
canal carcinoma
FDG-PET/CT imaging for staging and radiotherapy treatment planning of head and neck carcinoma
