Three cases of ossifying lipoma

Plaut, G.S.; Salm, R.; Truscott, D. E.

doi:10.1002/path.1700780135

Cited by 85 publications

(20 citation statements)

References 4 publications

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“…The terms ossifying lipoma, osseous lipoma and lipoma with osseous metaplasia have been used interchangeably with osteolipoma [5]. Osteolipoma is the rarest subtype of lipoma, with the first case being reported in 1959 [1]. An osteolipoma is defined as a lesion with mature adipose tissue and randomly distributed trabeculae of laminated bone [5].…”

Section: Discussionmentioning

confidence: 99%

“…Lipomas with mixed components are named according to the type of tissue. Ossification of a lipoma was first described in 1959, and it is rarely reported [1,2]. Several names have been used to describe ossification of lipomas, including secondary calcification, ossified lipoma, ossifying lipoma, or osteolipoma, and some authors have used these terms interchangeably.…”

Section: Introductionmentioning

confidence: 99%

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Osteolipoma of knee: a rare case report

Chaudhuri¹,

Mondal²,

Samaddar³

et al. 2017

AABS

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Lipomas are the most common benign soft tissue tumors and appear in any part of the body. They typically consist of mature adipose tissue. Osteolipoma is an extremely rare histologic variant of lipoma that contains mature lamellar bone within the tumor and osteolipoma independent of bone tissue are very rare. We report a case of histologically confirmed osteolipoma independent of bone located just above left knee. A 61 year old female presented with medial sided left knee pain of 6 month duration. X-ray demonstrated a partially calcified 3.5 cm diameter mass located in anterior to the distal medial femur. Histologic examination of an excisional biopsy showed the lesion to be an osteolipoma. Osteolipoma is a rare histologic variant of lipoma with osseous metaplasia, but should be considered in the differential of a fat-containing neoplasm with ossification.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Osteolipoma of knee: a rare case report

Chaudhuri¹,

Mondal²,

Samaddar³

et al. 2017

AABS

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“…Ossifying liopmas are described at various sites including thigh [6,7] hand [8,9], groin [10], thorax [11], retroperitonium [12], shoulder [13], intracranial [14], spinal [15], oral [16] and parapharyngeal [17,18] locations. Ossifying lipoma usually occur in parosteal (adjacent to bone) or intraosseous locations, however intramuscular ossifying lipomas have also been reported [19].…”

Section: Discussionmentioning

confidence: 99%

A large parosteal ossifying lipoma of lower limb encircling the femur

Hashmi¹,

Malik²,

Edhi³

et al. 2014

Int Arch Med

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IntroductionLipoma is a benign soft tissue neoplasm that may contain mesenchymal elements, as a result of metaplastic process. Ossification in benign and malignant soft tissue tumors can also manifest due to metaplastic process.Case presentationA 45 year old woman presented with a large thigh mass. The mass was developed one and a half year ago which insidiously increased in size and was associated with movement restriction. Radiological findings revealed soft tissue neoplasm on antero-medial aspect of thigh encircling the femur and displacing adjacent muscles. Fine trabeculations were seen in neoplasm suggestive of ossification. Excision of the mass was performed and histopathology revealed adipocytes with mature bony trabeculae possessing prominent osteoblastic rimming suggestive of ossifying lipoma.ConclusionIt is important to recognize this variant of lipoma as it is associated with a better clinical outcome in contrast to most of the deep seated soft tissue neoplasms. Secondly it should also be differentiated from myositis ossificans and heterologous differentiation in other soft tissue neoplasms. We suggest an algorithmic approach to the diagnosis of ossifying soft tissue neoplasms histopathologically. Mature bony trabeculae with prominent osteoblastic rimming in a soft tissue lesion are due to a metaplastic process and should not be confused with osteosarcoma.

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“…The mass is typically nontenden, not attached to the skin, and fixed to the bone [1 , 5]. All reported cases have been benign [1][2][3][4][5][6].…”

Section: Discussionmentioning

confidence: 99%