Tumors About the Knee Misdiagnosed as Athletic Injuries

by D. Luis Muscolo, Miguel A. Ayerza, Arturo Makino, Matías Costa-Paz, and Luis A. Aponte-Tinao

J Bone Joint Surg AmVolume 85(7):1209-1214

July 1, 2003

©2003 by The Journal of Bone and Joint Surgery, Inc.

Figs. 1-A and 1-B Case 12, a forty-three-year-old male soccer player who was finally diagnosed with an osteosarcoma after having been initially treated as if he had an athletic injury.

D. Luis Muscolo et al. J Bone Joint Surg Am 2003;85:1209-1214

©2003 by The Journal of Bone and Joint Surgery, Inc.

Fig. 1-B Sagittal magnetic resonance image, made at the time of admission to our institution, shows an osteosarcoma of the distal part of the femur with cortical destruction and soft-tissue

extension (arrow).

D. Luis Muscolo et al. J Bone Joint Surg Am 2003;85:1209-1214

©2003 by The Journal of Bone and Joint Surgery, Inc.

Figs. 2-A, 2-B, and 2-C Case 15, a sixteen-year-old girl who had had knee pain for six months and was treated for that period of time as if she had a meniscal lesion.

D. Luis Muscolo et al. J Bone Joint Surg Am 2003;85:1209-1214

©2003 by The Journal of Bone and Joint Surgery, Inc.

After several weeks of physical therapy, an arthrogram was performed.

D. Luis Muscolo et al. J Bone Joint Surg Am 2003;85:1209-1214

©2003 by The Journal of Bone and Joint Surgery, Inc.

Lateral radiograph made at the time of admission to our institution, showing a tumor mass with gross periosteal reaction (arrows).

D. Luis Muscolo et al. J Bone Joint Surg Am 2003;85:1209-1214

©2003 by The Journal of Bone and Joint Surgery, Inc.

Case 23, a forty-year-old woman with knee pain who had poor-quality initial radiographs and underwent a diagnostic arthroscopy at another institution.

D. Luis Muscolo et al. J Bone Joint Surg Am 2003;85:1209-1214

©2003 by The Journal of Bone and Joint Surgery, Inc.