Intraosseous "Lipoma" of the Calcaneus Developing in an Intraosseous Ganglion Cyst

Authors

  • Garret Michael Powell
  • Michael David Ringler
  • Norman Stewart Turner III
  • Stephen Michael Broski
  • Benjamin Matthew Howe

DOI:

https://doi.org/10.3941/jrcr.v12i12.3263

Keywords:

Lipoma, Intraosseous, Calcaneus, Ganglion, Cyst, MRI

Abstract

Intraosseous lipomas are rare primary bone tumors, most common to the calcaneus. There are several proposed theories of the natural etiology of intraosseous lipomas; however, all lack definitive support. In this report, an 18-year-old man presented with radiologic evidence of a simple bone cyst of the calcaneus. Over a 4-year period, the patient was followed with interval magnetic resonance imaging. The cyst demonstrated progressive development of peripheral intralesional fat with final magnetic resonance imaging features characteristic of an intraosseous lipoma. To our knowledge, this is the first longitudinal study that shows gradual peripheral fat deposition within an intraosseous ganglion cyst, illustrating a potential cause of intraosseous lipomas of the calcaneus.

Author Biographies

Garret Michael Powell

Department of Radiology

Michael David Ringler

Department of Radiology

Assistant Professor

Norman Stewart Turner III

Department of Orthopedic Surgery

Assistant Professor

Stephen Michael Broski

Department of Radiology

Assistant Professor

Benjamin Matthew Howe

Department of Radiology

Associate Professor

Published

2018-12-27

Issue

Section

Musculoskeletal Radiology