Paint brush borders sign
Last revised by Daniel J Bell ◉ on 22 Oct 2018
Citation, DOI, disclosures and article data
Bell D, Paint brush borders sign. Reference article, Radiopaedia.org (Accessed on 22 Mar 2023) https://doi.org/10.53347/rID-63838
20 Oct 2018, Daniel J Bell ◉
At the time the article was created Daniel J Bell had no recorded disclosures.View Daniel J Bell's current disclosures
22 Oct 2018, Daniel J Bell ◉
At the time the article was last revised Daniel J Bell had no recorded disclosures.View Daniel J Bell's current disclosures
4 times, by 1 contributor - see full revision history and disclosures
The paint brush borders sign may be seen on MRI of a giant cell tumor, at the margin between the lesion and the normal bone. The sign specifically refers to the jagged interface as the tumor penetrates into the bone which mimics the profile of the bristles of a paint brush.
It has recently been shown to be a risk factor for local recurrence of giant cell tumor.
- 1. He Y, Wang J, Rui W, Lin J, Yuan F, Du L, Zhang J, Ding X. Retrospective investigation of "paint brush borders" sign in association with local recurrence of giant cell tumor of bone after intralesional curettage. (2018) Journal of bone oncology. 10: 41-48. doi:10.1016/j.jbo.2017.11.002 - Pubmed
- 2. He Y, Zhang J, Ding X. Prognosis of local recurrence in giant cell tumour of bone: what can we do?. (2017) La Radiologia medica. 122 (7): 505-519. doi:10.1007/s11547-017-0746-6 - Pubmed