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Neuroblastoma: a specific sonographic tissue pattern.

G M Amundson, C L Trevenen, D L Mueller

    AJR. American Journal of Roentgenology
    |May 1, 1987
    PubMed
    Summary
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    A unique sonographic "lobule" in abdominal tumors may indicate neuroblastoma in children. This finding, linked to tumor growth patterns, aids in diagnosing this specific pediatric cancer.

    Area of Science:

    • Pediatric Radiology
    • Oncology

    Background:

    • Diagnosing neuroblastoma in children often relies on imaging, but characteristic sonographic findings have been inconsistent.
    • Previous studies yielded diverse results regarding specific ultrasound features for neuroblastoma.

    Purpose of the Study:

    • To identify a distinctive sonographic appearance that could be characteristic of neuroblastoma in pediatric abdominal masses.
    • To evaluate the specificity of a unique sonographic finding in differentiating neuroblastoma from other neoplasms.

    Main Methods:

    • Retrospective review of sonograms from 53 abdominal tumors, including 10 neuroblastomas, imaged between 1982 and 1986.
    • Correlation with computed tomography (CT) scans in select cases.
    • Histopathological analysis of tumor tissues.

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    Main Results:

    • A distinctive sonographic "lobule" of increased echogenicity was observed in 4 out of 10 neuroblastoma cases.
    • This lobule was attributed to the tumor's growth pattern, not specific cell type, and was not differentiated by CT.
    • Histologically, the lobule comprised uniform neuroblastoma cells without hemorrhage, necrosis, or calcification, a pattern not seen in other analyzed neoplasms like Wilms' tumors.

    Conclusions:

    • The identified sonographic "lobule" appears to be a specific indicator for neuroblastoma when detected in pediatric abdominal masses.
    • This sonographic sign offers a valuable diagnostic clue for neuroblastoma in children presenting with abdominal tumors.