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Orthopaedics
Intraosseous myolipoma of the calcaneus
  1. Jana Kerstin Betty Sobota1,
  2. Hanna Kienapfel2,
  3. Mathias Werner3 and
  4. Dominik Maximilian Vogt4
  1. 1Zentrum für Operative Medizin Klinik und Poliklinik für Unfallchirurgie und Orthopädie, UKE, Hamburg, Hamburg, Germany
  2. 2Praxis Dr. Chr. Russ, Rosengarten, Germany
  3. 3Vivantes Hospital in Friedrichshain Landsberger Allee, Berlin, Berlin, Germany
  4. 4Klinik für Orthopädie und Unfallchirurgie, Universitatsklinikum Schleswig Holstein - Campus Lubeck, Lübeck, Germany
  1. Correspondence to Dr Dominik Maximilian Vogt; dominik.vogt{at}live.com

Abstract

A man in his 40s presented with an incidental finding of an osteolytic bone lesion. He sustained an ankle injury while inline skating, fracturing his lateral malleolus. Besides the fracture, radiographic imaging on the day of the injury incidentally revealed a well-defined solitary osteolytic lesion with a sclerotic rim within the right calcaneus. MRI showed an intraosseous, fat-containing lesion with focal contrast enhancement, assessed as an intraosseous lipoma with central necrosis. In the pathological analysis of a sample of the lesion an intraosseous myolipoma of the calcaneus was found—an unexpected and extraordinary finding. To prevent pathological fracturing, curettage and bone grafting were performed using autologous iliac crest bone in combination with allogenous bone chips.

  • Orthopaedics
  • Radiology
  • Ankle sprains
  • Pathology

https://doi.org/10.1136/bcr-2024-259743

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    Footnotes

    • Contributors The following authors were responsible for drafting of the text, sourcing and editing of clinical images, investigation of the results, drawing original diagrams and algorithms, and critical revision for important intellectual content: JS: gathering all the information, doing a literature review, writing the case report. HK: giving advice on the interpretation of the radiographic imaging and revising the section of the manuscript on the results and conclusions drawn by the radiographic images on the condition of the patient. MW: critical revision of the section of the manuscript regarding the histopathological analysis and selection of significant histological images to illustrate the findings. DV: overall supervision of the writing of the report, primary adviser on the case report. The following authors gave final approval of the manuscript: JS, DV, HK, MW.

    • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

    • Case reports provide a valuable learning resource for the scientific community and can indicate areas of interest for future research. They should not be used in isolation to guide treatment choices or public health policy.

    • Competing interests None declared.

    • Provenance and peer review Not commissioned; externally peer reviewed.