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[Temporal changes in internal echoes in hepatic hemangiomas].

F Tsujimoto, T Abe, Y Murakami

    Nihon Igaku Hoshasen Gakkai Zasshi. Nippon Acta Radiologica
    |May 25, 1989
    PubMed
    Summary
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    Temporal changes in echo levels within hepatic hemangiomas were observed. This "wax and wane" sign is crucial for accurate ultrasound diagnosis of liver masses.

    Area of Science:

    • Medical Imaging
    • Hepatology
    • Radiology

    Context:

    • Hepatic hemangiomas are common benign liver tumors.
    • Accurate diagnosis of liver masses is essential for patient management.
    • Current diagnostic methods may not fully capture dynamic tumor characteristics.

    Purpose:

    • To investigate the temporal changes in internal echo levels of hepatic hemangiomas.
    • To determine the significance of these dynamic changes in ultrasonographic diagnosis.
    • To introduce a new descriptive sign for these observed phenomena.

    Summary:

    • Ultrasonographic real-time scanning was performed on nine hepatic hemangiomas over 4 to 30 minutes.
    • Significant temporal changes in internal echo levels (low echo ratio) were observed in 8 out of 9 hemangiomas.

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  • A novel "wax and wane" sign was coined to describe these dynamic echo variations.

    • Impact:

    • Highlights the importance of temporal assessment in ultrasound diagnosis of hepatic masses.
    • Provides a new diagnostic clue for identifying hepatic hemangiomas.
    • May improve diagnostic accuracy and reduce misdiagnosis of liver tumors.