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Pure intramuscular osteolipoma.

Yang JS, Kang SH, Cho YJ, Choi HJ - J Korean Neurosurg Soc (2013)

Bottom Line: 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.The mass with dual components was totally removed under general anesthesia and no recurrence was observed after 6 months of follow-up.

View Article: PubMed Central - PubMed

Affiliation: Department of Neurosurgery, Spine Center, Chuncheon Sacred Heart Hospital, College of Medicine, Hallym University, Chuncheon, Korea.

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.

No MeSH data available.


Related in: MedlinePlus

Preoperatively CT (A: sagittal) and sagittal MRI (B: T1-weighted, C: T2-weighted) revealing a irregular calcification involving posterior neck within soft tissue mass compatible with fat tissue.
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Figure 1: Preoperatively CT (A: sagittal) and sagittal MRI (B: T1-weighted, C: T2-weighted) revealing a irregular calcification involving posterior neck within soft tissue mass compatible with fat tissue.

Mentions: A 51-year-old female presented with a 5-year history of a painless, progressively enlarging mass on the posterior neck. She reported neck stiffness without associated neurological symptoms. Physical examination revealed a soft, non-tender, uniform mass without surface abnormalities. Computed tomography (CT) and magnetic resonance imaging (MRI) showed a circumscribed mass involving the posterior neck muscles in the midline between the C2 and C6 spinous processes with a large calcified component (Fig. 1). The ovoid mass was measured 4 cm in width, 6 cm in length, and 3 cm in height, without infiltration of the cervical spine. Subsequently, the patient underwent a whole body bone scan, which revealed an amorphous calcification of the posterior neck without metastasis (Fig. 2).


Pure intramuscular osteolipoma.

Yang JS, Kang SH, Cho YJ, Choi HJ - J Korean Neurosurg Soc (2013)

Preoperatively CT (A: sagittal) and sagittal MRI (B: T1-weighted, C: T2-weighted) revealing a irregular calcification involving posterior neck within soft tissue mass compatible with fat tissue.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3921282&req=5

Figure 1: Preoperatively CT (A: sagittal) and sagittal MRI (B: T1-weighted, C: T2-weighted) revealing a irregular calcification involving posterior neck within soft tissue mass compatible with fat tissue.
Mentions: A 51-year-old female presented with a 5-year history of a painless, progressively enlarging mass on the posterior neck. She reported neck stiffness without associated neurological symptoms. Physical examination revealed a soft, non-tender, uniform mass without surface abnormalities. Computed tomography (CT) and magnetic resonance imaging (MRI) showed a circumscribed mass involving the posterior neck muscles in the midline between the C2 and C6 spinous processes with a large calcified component (Fig. 1). The ovoid mass was measured 4 cm in width, 6 cm in length, and 3 cm in height, without infiltration of the cervical spine. Subsequently, the patient underwent a whole body bone scan, which revealed an amorphous calcification of the posterior neck without metastasis (Fig. 2).

Bottom Line: 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.The mass with dual components was totally removed under general anesthesia and no recurrence was observed after 6 months of follow-up.

View Article: PubMed Central - PubMed

Affiliation: Department of Neurosurgery, Spine Center, Chuncheon Sacred Heart Hospital, College of Medicine, Hallym University, Chuncheon, Korea.

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.

No MeSH data available.


Related in: MedlinePlus