Unusual abdominal metastases in osteosarcoma

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Intraabdominal metastases in the setting of osteosarcoma are very rare. We describe a case of a 17-year-old boy with high-grade right distal femur osteosarcoma who, two years after diagnosis, developed extensive intra abdominal metastases involving the omentum, peritoneum, bowel serosa, psoas muscles and abdominal soft tissue. Awareness of and surveillance for unusual patterns of metastasis may allow for earlier detection, intervention, and palliative care decision-making, which may affect survival and quality of life. This report underlines the need for prospective studies evaluating surveillance guidelines for patients after medical and surgical management of osteosarcoma, especially in cases complicated by pulmonary metastases.




Berhe, S., Danzer, E., Meyers, P. A., Behr, G., LaQuaglia, M. P., & Price, A. P. (2018). Unusual abdominal metastases in osteosarcoma. Journal of Pediatric Surgery Case Reports, 28, 13–16. https://doi.org/10.1016/j.epsc.2017.09.022

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