Multiple primary malignancies are a well-recognized entity, with increased recognition and detection alongside development of hybrid imagining. We present a rare case of a 16-year-old male with gnathic osteosarcoma and incidental finding of a second silent synchronous B-cell lymphoblastic lymphoma/leukemia in the lower limb. Treated successfully by chemotherapy, radiotherapy, and surgery.
Keywords: B cell lymphoma/leukemia; Double malignancy; Multiple primary malignancy; Osteosarcoma; Synchronous tumors.
© 2023 The Authors. Published by Elsevier Inc. on behalf of University of Washington.