Journal of Korean Neurosurgical Society

The Korean Neurosurgical Society (대한신경외과학회)
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Pure Intramuscular Osteolipoma

  • Yang, Jin Seo (Department of Neurosurgery, Spine Center, Chuncheon Sacred Heart Hospital, College of Medicine, Hallym University) ;
  • Kang, Suk Hyung (Department of Neurosurgery, Spine Center, Chuncheon Sacred Heart Hospital, College of Medicine, Hallym University) ;
  • Cho, Yong Jun (Department of Neurosurgery, Spine Center, Chuncheon Sacred Heart Hospital, College of Medicine, Hallym University) ;
  • Choi, Hyuk Jai (Department of Neurosurgery, Spine Center, Chuncheon Sacred Heart Hospital, College of Medicine, Hallym University)
  • Received : 2013.05.30
  • Accepted : 2013.12.12
  • Published : 2013.12.28
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Abstract

Ossified lipoma or osteolipoma are rarely reported. It is defined as a histologic variant of lipoma that has undergone osseous metaplasia. Osteolipoma presents with a dominant osseous component within a lipoma. We report a case of a histologically confirmed osteolipoma on the nuchal ligament independent of bone. The patient was a 51-year-old female who presented with a 5-year history of a painless, progressively enlarging mass on the posterior neck. Computed tomography and magnetic resonance imaging showed a circumscribed mass compatible with fat between the C2 and C6 spinous processes with a large calcified irregular component. The mass with dual components was totally removed under general anesthesia and no recurrence was observed after 6 months of follow-up. We also reviewed the clinicopathologic features of previously reported osteolipomas in the literature and suggest that although osteolipoma is a rare variant of lipoma, it should be considered in the differential diagnosis when a lipoma of the posterior neck mixed with a bony component is encountered.

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References

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