Lymphomas are a heterogeneous group of neoplasms of the lymphatic system. Accurate staging of lymphoma patients is essential for the selection of a suitable treatment strategy and the assessment of the patient’s prognosis. Within the last decades, Positron-emission-tomography/Computed-tomography (PET/CT) systems have been successfully introduced into clinical imaging algorithms [1]. Combining functional and morphological information has been found more accurate for lesion detection and whole-bod…