Primary osteosarcoma of the parietal bone


Osteosarcoma is the most common primary bone tumor and usually involves the long bones. Osteosarcoma of the skull, on the other hand, is relatively rare. Here, we present a 29-year-old man with a growing mass in the skull he first noticed after a fall while skateboarding. The initial clinical diagnosis was hematoma. While undergoing an evacuation surgery for a hematoma, a suspicious mass was detected which was biopsied. Histopathological evaluation showed high-grade osteosarcoma. The patient was referred to our hospital where he underwent definitive resection followed by adjuvant chemotherapy. His course was complicated by wound infection. Even though osteosarcoma of the skull is a rare finding, it should be suspected in a patient with a skull mass, and the history of prior head trauma does not exclude the diagnosis.

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Correspondence to Sara Ramezanpour or Thomas M. Link.

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The patient provided written consent for publication of this case report. The Institutional Review board at our institution does not require approval for case reports.

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Ramezanpour, S., Horvai, A.E., Piawah, S. et al. Primary osteosarcoma of the parietal bone. Skeletal Radiol (2021).

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  • Parietal bone
  • Primary osteosarcoma
  • Skull