Surgery Alone or With CYC VBL and PRED or CVP Alone in Stage IA or IIA Nodular Lymphocyte-Predominant Hodgkin Lymphoma

Inclusion criteria: * nodular lymphocyte-predominant Hodgkin's lymphoma confirmed by reference pathology. * initial stage IA/IIA (according to local staging) or relapse stage IA or IIA and residual tumour after relapse biopsy and no additional surgery planned in nLP patients relapsing after surgery alone * patient aged under 18 years at time of diagnosis * written informed consent of the patient and/or the patient's parents or guardian according to national laws Exclusion criteria * pre-treatment of Hodgkin's lymphoma differing from study protocol * Any extra-nodal involvement * Inability to fulfil protocol requirements for imaging (CT, MRI, FDG-PET) at staging and response assessment * known hypersensitivity or contraindication to study drugs * prior chemotherapy or radiotherapy * Current or recent therapy (within 30 days prior to the start of trial treatment) with steroids * Current or recent (within 30 days prior to the start of trial treatment) treatment with another investigational drug or participation in another investigational trial * other (simultaneous) malignancies * severe concomitant diseases (e.g. immune deficiency syndrome) * known HIV positivity * pregnancy and / or lactation * females who are sexually active refusing to use effective contraception (oral contraception, intrauterine devices, barrier method of contraception in conjunction with spermicidal jelly or surgical sterile) (except for surgery only)