MRI "row of dots sign" in gossypiboma: an enlarging mass 8 months after sarcoma resection

Timothy Shiraev*, S. Fiona Bonar, Paul Stalley, Suzanne E. Anderson

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


The retention of foreign bodies after surgery is rare, but carries significant morbidity and mortality as well as financial and legal implications. Such retained items cause a foreign-body reaction, which in the case of cotton-based materials are called gossypibomas. We present the case of an 84-year-old woman with a pseudotumor secondary to a retained dressing gauze roll, presenting 5 months after resection of a gluteal sarcoma, which had raised concerns of local recurrence. We also outline the imaging modalities that may assist in diagnosis of a retained foreign body, and suggest the MRI "row of dots" sign as a useful radiological feature associated with gossypiboma. Awareness of the imaging appearances of retained foreign bodies allows the inclusion of this possibility in differential diagnosis of a mass in patients with a surgical history.

Original languageEnglish
Pages (from-to)1017-1019
Number of pages3
JournalSkeletal Radiology
Issue number7
Publication statusPublished - Jul 2013
Externally publishedYes


  • Dressoma
  • Foreign body
  • Gossypiboma
  • Postoperative sarcoma MRI
  • Pseudotumor


Dive into the research topics of 'MRI "row of dots sign" in gossypiboma: an enlarging mass 8 months after sarcoma resection'. Together they form a unique fingerprint.

Cite this