Fig. 1From: How we read pediatric PET/CT: indications and strategies for image acquisition, interpretation and reportingPET/CT in Hodgkin Lymphoma. Baseline PET/CT shows bulky mediastinal, extensive splenic and intra-abdominal nodal disease. Following 2 cycles of chemotherapy the 18F-FDG PET/CT shows a complete metabolic response to therapy, whereas residual mediastinal soft tissue mass and splenic lesions remain. Following a response-based treatment algorithm, subsequent therapeutic decisions are made based on the metabolic complete response (CR) shown by PET/CTBack to article page