Soft tissue recurrence of an osteoid osteoma: an exceptional observation

Skeletal Radiol. 2021 Apr;50(4):827-833. doi: 10.1007/s00256-020-03609-3. Epub 2020 Sep 23.


We report the observation of the soft tissue recurrence of an osteoid osteoma (OO) in a 26-year-old man initially complaining of post-traumatic pain and swelling of the right ankle. A first arthroscopic resection was performed after the misdiagnosis of "bone irregularities" observed on computed tomography (CT) and magnetic resonance imaging (MRI). The diagnosis of OO was made by histological analysis of the resection material. The patient became asymptomatic for 5 years until the symptoms progressively recurred. Follow-up MRI and CT studies demonstrated a nodular bony focus within the periarticular soft tissues of the ankle. The lesion was removed, and histological analysis confirmed the diagnosis of a whole viable OO. This observation likely resulted from the displacement of the initial lesion during the initial arthroscopic procedure. This case report highlights the possibility of recurrence of OO in the soft tissues.

Keywords: Bone; Computed tomography; MRI; Soft tissue; Tumor, osteoid osteoma.

Publication types

  • Case Reports

MeSH terms

  • Adult
  • Bone Neoplasms* / diagnostic imaging
  • Bone Neoplasms* / surgery
  • Humans
  • Magnetic Resonance Imaging
  • Male
  • Neoplasm Recurrence, Local / diagnostic imaging
  • Neoplasm Recurrence, Local / surgery
  • Osteoma, Osteoid* / diagnostic imaging
  • Osteoma, Osteoid* / surgery
  • Tomography, X-Ray Computed