Suggest Treatment For Hodgkin’s Lymphoma

Master nihad aged 6 yrs is diagnosed with Hodgkin’s lymphoma and has completed 4 cycles of ABVD regime chemo PET scan findings done before the chemo (multiple enlarged lymph nodes right cervical level II, III and V, all these nodes show abnormal uptake of FDG, the largest reference node is in left cervical level II node 2.3 x 1.7cm with SUV max -5.1, the largest ref node in level III measures 1.8 x 1.1cm and shows max SUV 4.2 - no metabolically active lesion seen else where to suggest metastases. PET scan done after 2nd cycle –there are metabolically active bilateral enlarged level II and III cervical nodes .the reference node at the angle of mandible on the left side measures 1.6 cm with SUV max 4.2 (previously 1.3 cm with SUV max 2.1)and on the right side measures 1.9cm with SUV max 3.5 (previously 2.3 x 1.7 cm with SUV max 5.1) the tonsils are mildly enlarged show increase tracer uptake with SUV max 6.4, there is a small thymic remnant showing low grade FDG uptake with SUV max 1.6. can you please suggest if he needs to continue with further chemotherapy or is there any other treatment for him and what is the prognosis of this disease. Thanking you Mr Usman.