Osteolipoma of knee: a rare case report
Keywords:
Osteolipoma, Ossifying lipoma, Knee joint
Abstract
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. DOI: 10.21276/AABS.2017.1320References
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9. Hashmi AA, Malik B, Edhi MM, Faridi N, Ashraful M. A large parosteal ossifying lipoma of lower limb encircling the femur. Int Arch Med. 2014,7(1):5
10. Pudlowski RM, Gilula LA, Kyriakos M. Intraarticular lipoma with osseous metaplasia: radiographic-pathologic correlation. Am J Roentgenol. 1979.132(3):471-3
11. Friedman MV, Kyriakos M, Matava MJ, McDonald DJ, Jennings JW, Wessell DE. Intra-articular synovial sarcoma. Skeletal Radiol. 2013,42(6):859-67.
12. Val-Bernal JF, Val D, Garijo MF, Vega A, Gonzalez-Vela MC. Subcutaneous ossifying lipoma: Case report and review of the literature. J Cutan Pathol. 2007, 34: 788-92.
2. Adebiyi KE, Ugboko VI, Maaji SM, Ndubuizu G. Osteolipoma of the palate: report of a case and review of the literature. Niger J Clin Pract. 2011,14:242-4.
3. Huynh TPV, Cipriano CA, Hagemann IS, Friedman MV. Osteolipoma of the knee. Radiology Case Reports. in press.
4. Murphey MD, Carroll JF, Flemming DJ, Pope TL, Gannon FH, Kransdorf MJ: From the archives of the AFIP: Benign musculoskeletal lipomatous lesions. Radiographics. 2004,24:1433-66
5. Obermann EC, Bele S, Brawanski A, Knuechel R, Hofstaedter F: Ossifying lipoma. Virchows Arch.1999,434:181-3.
6. Durmaz A, Tosun F, Kurt B, Gerek M, Birkent H. Osteolipoma of the nasopharynx. J Craniofac Surg. 2007,18(5):1176-9.
7. Kameyama K, Akasaka Y, Miyazaki H, Hata J. Ossifying lipoma independent of bone tissue. ORL J Otorhinolaryngol Relat Spec. 2000,62(3):170-2.
8. Amaral MB, Borges CF, de Freitas JB, Capistrano HM, Mesquita RA. Osteolipoma of the oral cavity: a case report. J Maxillofac Oral Surg. 2015,14(Suppl.1):195-9.
9. Hashmi AA, Malik B, Edhi MM, Faridi N, Ashraful M. A large parosteal ossifying lipoma of lower limb encircling the femur. Int Arch Med. 2014,7(1):5
10. Pudlowski RM, Gilula LA, Kyriakos M. Intraarticular lipoma with osseous metaplasia: radiographic-pathologic correlation. Am J Roentgenol. 1979.132(3):471-3
11. Friedman MV, Kyriakos M, Matava MJ, McDonald DJ, Jennings JW, Wessell DE. Intra-articular synovial sarcoma. Skeletal Radiol. 2013,42(6):859-67.
12. Val-Bernal JF, Val D, Garijo MF, Vega A, Gonzalez-Vela MC. Subcutaneous ossifying lipoma: Case report and review of the literature. J Cutan Pathol. 2007, 34: 788-92.
Published
2017-02-21
Issue
Section
Case Reports
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