A 36-year-old man with insidious onset of posterior right thigh pain that had started 1 month previously sought physical therapy consultation after his pain was nonresponsive to nonsteroidal anti-inflammatory drugs prescribed by his physician. Radiographs were noncontributory. Given the atypical findings during examination, the physical therapist referred him to an orthopaedic surgeon, who ordered magnetic resonance imaging that revealed a sacral tumor. Subsequently, a computed tomography-guided biopsy by a radiologist confirmed a high-grade sacral chondroblastic osteosarcoma. J Orthop Sports Phys Ther 2018;48(8):665. doi:10.2519/jospt.2018.8032.
Keywords: cancer; computed tomography; lower extremity; magnetic resonance imaging; radiography.