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Case report
peer-reviewed

Giant Osteolipoma Fixed to the Greater Trochanter of the Femur in a Seventy-Year-Old Elderly Woman



Abstract

A lipoma containing mature osseous elements is called osteolipoma. This article describes a giant osteolipoma fixed to the periosteum of the greater trochanter of the femur. A seventy-year-old woman presented with a large subcutaneous mass in the right buttock which had been present for six years. On local examination, a giant mass that was ovoid, firm, non-tender, well demarcated, subcutaneous, and relatively fixed to the greater trochanter was palpated in the right buttock. A medical imaging and fluoro-deoxy-glucose (FDG) bone scan revealed a large lipomatous and metabolically active lesion arising from the periosteum of the greater trochanter of femur. The excisional mass of 17 × 8 × 7 cm3 was well encapsulated and had an osseous basal portion. Cut sections of the mass revealed mainly yellow fatty tissue surrounded by a thin fibrous capsule with numerous interlacing thin lamellar bony structures. The definitive pathological diagnosis was osteolipoma without evidence of malignancy. No recurrence was observed at eight months follow-up.

Osteolipoma with an osseous basal portion is rare. Surgical excision is the treatment of choice and the prognosis is good. To the best of our knowledge, this is the first report of an unusual giant osteolipoma fixed to the periosteum of the greater trochanter of the femur.



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Case report
peer-reviewed

Giant Osteolipoma Fixed to the Greater Trochanter of the Femur in a Seventy-Year-Old Elderly Woman


Author Information

Ali J Electricwala Corresponding Author

Department of Orthopaedics, Electricwala Hospital and Clinic

Department of Orthopaedics, Sancheti Hospital

Yogesh Panchwagh

Orthopaedic Oncology Clinic, Sancheti Hospital

Jaffer T. Electricwala

Department of Orthopaedics, Electricwala Hospital and Clinic


Ethics Statement and Conflict of Interest Disclosures

Human subjects: Consent was obtained by all participants in this study. Written informed consent was obtained from the patient for the publication of this case report and accompanying images. . Conflicts of interest: The authors have declared that no conflicts of interest exist.


Case report
peer-reviewed

Giant Osteolipoma Fixed to the Greater Trochanter of the Femur in a Seventy-Year-Old Elderly Woman


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Case report
peer-reviewed

Giant Osteolipoma Fixed to the Greater Trochanter of the Femur in a Seventy-Year-Old Elderly Woman

  • Author Information
    Ali J Electricwala Corresponding Author

    Department of Orthopaedics, Electricwala Hospital and Clinic

    Department of Orthopaedics, Sancheti Hospital

    Yogesh Panchwagh

    Orthopaedic Oncology Clinic, Sancheti Hospital

    Jaffer T. Electricwala

    Department of Orthopaedics, Electricwala Hospital and Clinic


    Ethics Statement and Conflict of Interest Disclosures

    Human subjects: Consent was obtained by all participants in this study. Written informed consent was obtained from the patient for the publication of this case report and accompanying images. . Conflicts of interest: The authors have declared that no conflicts of interest exist.

    Acknowledgements


    Article Information

    Published: February 17, 2017

    DOI

    10.7759/cureus.1036

    Cite this article as:

    Electricwala A, Panchwagh Y, Electricwala J T (February 17, 2017) Giant Osteolipoma Fixed to the Greater Trochanter of the Femur in a Seventy-Year-Old Elderly Woman. Cureus 9(2): e1036. doi:10.7759/cureus.1036

    Publication history

    Received by Cureus: February 02, 2017
    Peer review began: February 07, 2017
    Peer review concluded: February 15, 2017
    Published: February 17, 2017

    Copyright

    © Copyright 2017
    Electricwala et al. This is an open access article distributed under the terms of the Creative Commons Attribution License CC-BY 3.0., which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

    License

    This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

A lipoma containing mature osseous elements is called osteolipoma. This article describes a giant osteolipoma fixed to the periosteum of the greater trochanter of the femur. A seventy-year-old woman presented with a large subcutaneous mass in the right buttock which had been present for six years. On local examination, a giant mass that was ovoid, firm, non-tender, well demarcated, subcutaneous, and relatively fixed to the greater trochanter was palpated in the right buttock. A medical imaging and fluoro-deoxy-glucose (FDG) bone scan revealed a large lipomatous and metabolically active lesion arising from the periosteum of the greater trochanter of femur. The excisional mass of 17 × 8 × 7 cm3 was well encapsulated and had an osseous basal portion. Cut sections of the mass revealed mainly yellow fatty tissue surrounded by a thin fibrous capsule with numerous interlacing thin lamellar bony structures. The definitive pathological diagnosis was osteolipoma without evidence of malignancy. No recurrence was observed at eight months follow-up.

Osteolipoma with an osseous basal portion is rare. Surgical excision is the treatment of choice and the prognosis is good. To the best of our knowledge, this is the first report of an unusual giant osteolipoma fixed to the periosteum of the greater trochanter of the femur.



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Ali J Electricwala

Department of Orthopaedics, Electricwala Hospital and Clinic

For correspondence:
ali.electricwala@gmail.com

Yogesh Panchwagh

Orthopaedic Oncology Clinic, Sancheti Hospital

Jaffer T. Electricwala

Department of Orthopaedics, Electricwala Hospital and Clinic

Ali J Electricwala

Department of Orthopaedics, Electricwala Hospital and Clinic

For correspondence:
ali.electricwala@gmail.com

Yogesh Panchwagh

Orthopaedic Oncology Clinic, Sancheti Hospital

Jaffer T. Electricwala

Department of Orthopaedics, Electricwala Hospital and Clinic