ABSTRACT

Lymphomas are a broad group of diseases arising from different types of lymphocytes. Over the last half decade, successive advances in treatment possibilities have led to an improvement in patient prognosis from fatal outcomes to a clinical situation where cure can be achieved. High rates of disease control and long-term survivors. Positron emission tomography/computed tomography based imaging plays an important role in staging and optimal evaluation of treatment response. The location, technique and dose selection of radiotherapy, which is an indispensable treatment method especially in lymphoma patients, are determined according to the status of functional imaging after chemotherapy. The International Lymphoma Radiation Oncology Group develops guidelines for the optimal use of imaging. The transition from uniform large-area treatment volumes to complex individual setups that take into account biological response assessments based on functional imaging allows for further reductions in side effects.