Osteolipoma independent of bone tissue: a case report

Demiralp, Bahtiyar; Alderete, Joseph F.; Köse, Özkan; Özcan, Ayhan; Cicek, Ilker; Basbozkurt, Mustafa

doi:10.4076/1757-1626-2-8711

Cited by 36 publications

(46 citation statements)

References 18 publications

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“…Therefore, the occurrence of osseous and cartilaginous differentiation may be a reflection of the presence of MSCs in certain lipomas. In contrast, certain authors have proposed a hypothesis that ossification/calcification may be caused by repetitive trauma or, possibly, ischemia (4,5,7,9). …”

Section: Discussionmentioning

confidence: 99%

Scapular osteochondrolipoma: Imaging features with pathological correlation

et al. 2013

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Osteochondrolipoma is an extremely rare histological variant of lipoma with osseous and cartilaginous differentiation. The present study reports an unusual case of an osteochondrolipoma occurring in the left scapular region of a 49-year-old male. The physical examination revealed a 3-cm, hard, non-tender and minimally mobile mass. Plain radiography revealed a faintly ossified soft-tissue mass without evidence of bone erosion. Computed tomography (CT) confirmed the presence of a lesion and the normal appearance of the scapula. Magnetic resonance imaging (MRI) showed a well-circumscribed subcutaneous mass with an almost homogeneous high signal intensity on the T1- and T2-weighted sequences. Contrast-enhanced fat-suppressed T1-weighted sequences demonstrated a faint peripheral and septal enhancement of the mass. A marginal excision of the tumor was performed. Histologically, the tumor was predominantly composed of mature adipocytes mixed with thin trabeculae of mature bone. In addition, small amounts of mature hyaline cartilage and osteoid were identified in the periphery of the lesion. Based on these findings, the tumor was diagnosed as an osteochondrolipoma. The patient demonstrated no evidence of local recurrence within six months of follow-up. Although rare, osteochondrolipoma should be considered as a differential diagnosis of a well-defined, calcified/ossified, subcutaneous mass in the scapular region.

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Section: Discussionmentioning

confidence: 99%

Scapular osteochondrolipoma: Imaging features with pathological correlation

et al. 2013

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“…Parosteal lipomas may be considered as a separate group of rare benign lipomas affecting the bones, performing either in mandible, cervical vertebra or fibula (7,8). Parosteal lipomas are exceedingly rare benign lipomatous neoplasms located adjacent to the periosteum of bones.…”

Section: Discussionmentioning

confidence: 99%

Parosteal ossifying lipoma of the clavicle: A case report

Nie¹,

Guo²,

Xu³

et al. 2017

Molecular and Clinical Oncology

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Abstract. Lipomas are very common benign adipose tissue tumors that most often develop in subcutaneous tissue. A limited number of studies have described the characteristics of parosteal ossifying lipomas located in the fibula, cervical vertebrae and mandible. However, to the best of our knowledge, parosteal ossifying lipoma of the clavicle has not yet been reported. We herein describe the clinical symptoms, radiological and histological findings in a rare case of parosteal ossifying lipoma of the clavicle in a 40-year-old male patient. The characteristic histological appearance, together with computed tomography and̸or magnetic resonance imaging characteristics, should aid in the accurate diagnosis of such cases.

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“…There are two generally accepted theories for osseous metaplasia3,4,6,8,13). First, these tumours may originate from multipotent mesenchymal cells that can differentiate into lipoblasts, chondroblasts, fibroblasts, angioblasts, and osteoblasts.…”

Section: Discussionmentioning

confidence: 99%

Pure Intramuscular Osteolipoma

Yang

Kang

Cho

et al. 2013

J Korean Neurosurg Soc

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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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Osteolipoma independent of bone tissue: a case report

Cited by 36 publications

References 18 publications

Scapular osteochondrolipoma: Imaging features with pathological correlation

Scapular osteochondrolipoma: Imaging features with pathological correlation

Parosteal ossifying lipoma of the clavicle: A case report

Pure Intramuscular Osteolipoma

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