This site is targeted at medical and radiology professionals, contains user contributed content, and material that may be confusing to a lay audience. Use of this site implies acceptance of our Terms of Use.

Bright dot sign - atypical haemangioma of the liver

Dr Yuranga Weerakkody and Dr Usman Bashir et al.

The bright dot sign refers to presence of a bright dot within a lesion which remains hyper-attenuating on arterial and portal venous phase CT, corresponding to early nodular enhancement seen on dynamic MRI of liver haemangioma. This can be used as an indicator that the lesion in question is a haemangioma (and not a metastasis). Dynamic MRI should be confirmatory.

This article is a stub, which means it needs more content. You can contribute to Radiopaedia.org too. Just register and edit... every little bit helps.

References

This article is in need of some more references!
You can make a difference to Radiopaedia.org by adding some relevant ones.
1. Jang HJ, Choi BI, Kim TK et-al. Atypical small hemangiomas of the liver: "bright dot" sign at two-phase spiral CT. Radiology. 1998;208 (2): 543-8. Radiology (citation) - Pubmed citation
2. Jang HJ, Kim TK, Lim HK et-al. Hepatic hemangioma: atypical appearances on CT, MR imaging, and sonography. AJR Am J Roentgenol. 2003;180 (1): 135-41. AJR Am J Roentgenol (citation) - Pubmed citation