These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Atypical small hemangiomas of the liver: "bright dot" sign at two-phase spiral CT.
    Author: Jang HJ, Choi BI, Kim TK, Yun EJ, Kim KW, Han JK, Han MC.
    Journal: Radiology; 1998 Aug; 208(2):543-8. PubMed ID: 9680590.
    Abstract:
    PURPOSE: To determine if a tiny enhancing dot is characteristic of small hemangiomas with low attenuation during the hepatic arterial phase (HAP) and portal venous phase (PVP) of two-phase spiral computed tomography (CT). MATERIALS AND METHODS: Among 249 consecutive patients with 377 hemangiomas who underwent two-phase spiral CT (performed 30 and 65 seconds after the start of injection), 34 hemangiomas in 20 patients were less than 2 cm in diameter, had low attenuation during the HAP and PVP, and showed characteristic findings on dynamic contrast material-enhanced magnetic resonance (MR) images. The CT scans were retrospectively reviewed for tiny enhancing dots and correlated with the MR images. RESULTS: Tiny enhancing dots were found in 26 of 34 hemangiomas (76%). The dots were seen during the HAP and PVP in 15 lesions (58%) and during the PVP alone in 11 lesions (42%). The lesions showed a tendency toward slow fill-in at MR imaging (only four lesions completely filled with contrast material within 5 minutes). The dots seen at CT corresponded to the initial enhancing area at MR imaging. CONCLUSION: Small hemangiomas with persistent low attenuation at two-phase spiral CT can be diagnosed with the "bright dot" sign.
    [Abstract] [Full Text] [Related] [New Search]