In hodgkin's lymphoma no role of surgery is there. Probably you wanted to mention surgical biopsy. now, stage II hodgkin's lymphoma is managed by chemoradiotherapy
. As already 5 years have been elapsed chance of recurrence is lower but at this stage main concern will be chance of developing second cancer due to previous treatment and late toxicities due to chemotherapy
and radiotherapy. If radiation to neck and/or mediastinum ( chest) was given previously, annual chest imaging (high resolution CT
scan) is an option to identify any early thoracic cancer. Testicular swelling seems to be unrelated to the disease entity. It may be due to epididymo-orchitis
should be done for proper diagnosis. take care of your son.