Parosteal ossifying lipoma of the clavicle: A case report

Nie, Pengfei; Guo, Jiao; Xu, Yuanlin; He, Zhennian; Han, Mingyuan; Dai, Bo; Chen, Zhong

doi:10.3892/mco.2017.1135

Cited by 4 publications

(4 citation statements)

References 10 publications

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“…What distinguishes parosteal from other lipomas is the intimate relationship with bone, highlighting the importance of radiological-pathological correlation for establishing the diagnosis. Parosteal lipoma most commonly arises against long bones particularly along the femur and radius [5], although it has been reported throughout the skeleton including unique locations such as rib [12], clavicle [13], scapula [14], skull [15], mandible [16], fibula [17], foot [18], and hand [19].…”

Section: Discussionmentioning

confidence: 99%

Parosteal Lipoma of the Femur Presenting with Impending Fracture

Al-Samhan

2024

OPROJ

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Background: Parosteal lipoma is a rare benign tumor of mature adipose tissue located on the surface of bone firmly adherent to the periosteum. It is typically associated with reactive changes in the underlying bone in the form of cortical thickening, erosions, or bowing which may complicate the clinical picture. In this report, we present a case of parosteal lipoma of the femur associated with exuberant bony changes and clinical concern of an impending fracture.Case presentation: A 33-year-old female presented with right thigh pain and limping. Multimodality imaging revealed a juxtacortical fat-capped exostosis-like lesion located against the upper meta-diaphysis of the femur accompanied by cortical bone protuberances, focal cortical erosion, and an intramedullary lytic component. A needle core biopsy was performed due to concerns regarding the bony reaction but failed to yield diagnostic material. The patient was considered at increased risk of developing a pathological fracture due to the significant functional pain and the radiological findings and underwent an open excisional biopsy and prophylactic fixation of the impending fracture. Finally, pathological evaluation confirmed the diagnosis of parosteal lipoma and the reactive nature of the bony changes. Conclusion:Parosteal lipoma is a rare benign lesion occurring on the surface of bone which may resemble exostosis or other more aggressive parosteal tumors. Although histopathological evaluation is often regarded as a gold standard, radiology-pathology correlation is mandatory for establishing the correct diagnosis especially on small biopsy samples. Accurate preoperative recognition of parosteal lipoma and distinction from other juxtacortical bone tumors will aid in appropriate surgical planning.

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Section: Discussionmentioning

confidence: 99%

Parosteal Lipoma of the Femur Presenting with Impending Fracture

Al-Samhan

2024

OPROJ

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“…Lipoma is the most common mesenchymal benign neoplasm accounting for ~50% of all soft tissue neoplasms [ 1 ]. It occurs, most frequently, among adults between age 40 and 60 years of age and it is more common among men [ 2 ].…”

Section: Discussionmentioning

confidence: 99%

An unusual variant of lipoma: case report

Elouarith

Elmajoudi

Habiba

et al. 2022

Journal of Surgical Case Reports

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Osteo-lipoma is a very rare benign tumor with a good prognosis. It is composed mainly of mature fatty tissue with a bony component. The diagnosis is based on the histological study, given the clinical and radiological characters that can simulate other benign or malignant pathologies. Osteosarcoma is the main differential diagnosis. The distinction between these two neoplasms is essential as the basis of the treatment is different. We report the case of a patient with a giant ossifying lipoma independent of bone tissue located in the thigh.

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“…Their location itself may cause secondary, noticeable symptoms. For example, neurological deficits may occur if the tumor compresses a nerve [2]. Additionally, an ossifying lipoma in an intra-articular or juxtaarticular location can produce mechanical symptoms which lead to earlier presentation as well as a wider differential diagnosis including calcified synovitis, myositis ossificans, or a degenerative joint condition if the mass erodes the nearby joint tissue [13].…”

Section: Clinical Presentation and Gross Pathological Features Of Ossmentioning

confidence: 99%

“…Lipomas tend to occur in patients over 30 years of age, with equal incidences in men and women. Though lipomas make up approximately half of all neoplasms within soft tissues, lipomas containing osseous elements are quite rare [2]. The exact incidence of these tumors is unknown.…”

Section: Introductionmentioning

confidence: 99%

Ossifying lipoma: literature review and analysis of radiological imaging

Rombado¹,

Madewell²,

Aslam³

et al. 2018

Imaging-Medicine

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Multiple theories exist regarding the pathogenesis of ossifying lipoma, though Lipomas are benign tumors consisting primarily of mature adipocytes. Imaging is important in distinguishing benign ossifying lipoma from more aggressive tumors such as well-differentiated liposarcomas. Early diagnosis of ossifying lipoma and understanding of its benign etiology prevent unwarranted medical intervention such as biopsies and surgical resection, as well as decrease patient anxiety.

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Parosteal ossifying lipoma of the clavicle: A case report

Cited by 4 publications

References 10 publications

Parosteal Lipoma of the Femur Presenting with Impending Fracture

Parosteal Lipoma of the Femur Presenting with Impending Fracture

An unusual variant of lipoma: case report

Ossifying lipoma: literature review and analysis of radiological imaging

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