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<p>Ossifying fibromyxoid tumors (OFMT) are rare tumors with an intermediate risk of malignancy that are usually found in the extremities. To date, only three cases of OFMTs involving the paraspinal musculature have been reported in the literature. Two of these previously reported cases demonstrated poorly circumscribed tumors with involvement of adjacent osseous and soft tissue structures. We report the first case of a well-circumscribed OFMT involving the paraspinal musculature with extrinsic erosion of bone but otherwise no significant soft tissue extension. Specifically, we review the CT and MRI findings, immunohistopathology, and genetics used to confirm the diagnosis of OFMT.</p>

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Ossifying fibromyxoid tumor: a rare case involving the paraspinal musculature and spinous processes

  • 期刊论文

  • 发表日期：

    2025年8月15日

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  • Ryan P. Fredette,
  • Leah Ahn,
  • Emily Towery,
  • David A. Mahvi,
  • Edgar L. Martinez Salazar

摘要

Ossifying fibromyxoid tumors (OFMT) are rare tumors with an intermediate risk of malignancy that are usually found in the extremities. To date, only three cases of OFMTs involving the paraspinal musculature have been reported in the literature. Two of these previously reported cases demonstrated poorly circumscribed tumors with involvement of adjacent osseous and soft tissue structures. We report the first case of a well-circumscribed OFMT involving the paraspinal musculature with extrinsic erosion of bone but otherwise no significant soft tissue extension. Specifically, we review the CT and MRI findings, immunohistopathology, and genetics used to confirm the diagnosis of OFMT.