“…ASPS originates most commonly in the deep soft tissue of the lower extremities [1, 2, 3, 4, 5, 6], but it may also arise from the tongue, uterus, stomach, vein and bone [11, 12, 13, 14, 15, 16, 17, 18]. To further elaborate on clinical features, prognostic factors and treatment of ASPS, we performed a retrospective study in patients with ASPS who presented to institutes of the Japanese Musculoskeletal Oncology Group (JMOG).…”