“…PBLL only accounts for 10-25% of all PLL and typically presents with subcutaneous, soft tissue, bone, and lymph node disease in children or young adults. Primary uncommon lesions of PBLL in testicles, localized skin, pancreas, and musculoskeletal system on 18 F-FDG PET imaging were reported, with SUV max ranging from 3.7 to 19.1 (3)(4)(5)(6)(7)(8)(9). Besides that, there are also case reports with initial symptoms of ovaries, retroperitoneum, tonsil, uterus, stomach, colon, mediastinum, and both lytic and blastic bone lesions (10)(11)(12)(13).…”