Parosteal Osteosarcoma Clinical Presentation

Updated: Jan 04, 2023
  • Author: Palaniappan Lakshmanan, MBBS, MS, AFRCS, FRCS(Tr&Orth); Chief Editor: Omohodion (Odion) Binitie, MD  more...
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History and Physical Examination

Parosteal osteosarcoma usually occurs in older age with a peak in the third and fourth decades of life, with no sex predilection. It commonly presents as a slow-growing painless lump in the posterior aspect of the distal femur; however, it can be painful as well. The pain may be dull and aching in nature. Rarely, parosteal osteosarcoma can present with restriction of joint movement when it occurs close to the joint. The duration of symptoms may range from 1 month to 2 years before the diagnosis.