Osteosarcoma of the patella mimicking giant cell tumor: imaging features with histopathological correlation.

@article{Aoki2014OsteosarcomaOT,
  title={Osteosarcoma of the patella mimicking giant cell tumor: imaging features with histopathological correlation.},
  author={Mikiko Aoki and Jun Nishio and Hiroshi Iwasaki and Michio Masaki and Yoshihisa Kawakami and Takefumi Nishino and Hiroyuki Ohjimi and Kazuo Tamura and Kazuki Nabeshima and Masatoshi Naito},
  journal={Anticancer research},
  year={2014},
  volume={34 5},
  pages={2541-5}
}
Patellar tumors represent an uncommon etiology of anterior knee pain and their diagnosis is often delayed. We present an unusual case of conventional osteosarcoma arising in the patella of a 47-year-old man. The patient presented with a 1-year history of increasing anterior knee pain and swelling. Plain radiographs revealed a multi-locular lytic lesion in the inferolateral side of the patella. Computed tomography scans demonstrated an intraosseous lytic lesion with cortical thinning… CONTINUE READING