Retinoblastoma echocardiography or ultrasound

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Simrat Sarai, M.D. [2]

Overview

On ultrasound, retinoblastoma is characterized by echogenic soft-tissue masses with variable shadowing due to calcifications and heterogeneity due to necrosis and/or hemorrhage.

Ultrasound

  • Ultrasound B-scan is helpful in the primary method to confirm the presence of a mass in the eyeball.[1]
  • This imaging method is useful in:
    • Measuring the dimensions of mass
    • Detecting associated vitreous seeds or retinal detachment
    • Excluding optic nerve invasion
  • On ultrasound imaging, retinoblastoma appears as:
    • A dome-shaped solid mass with variable internal reflectivity.
    • Intralesional calcification may or may not be seen.
  • The accuracy of this imaging study in diagnosing retinoblastoma has been observed to be between 87.5% to 100%.[2][3]

References

  1. Dutta, L. C. (2005). Modern ophthalmology. New Delhi, India: Jaypee Bros. ISBN 978-8180614705.
  2. Zilelioğlu G, Gündüz K (1995). "Ultrasonic findings in intraocular retinoblastoma and correlation with histopathologic diagnosis". Int Ophthalmol. 19 (2): 71–5. PMID 8586499.
  3. Nagaraju, Rashmi M (2015). "Efficacy of High Frequency Ultrasound in Localization and Characterization of Orbital Lesions". JOURNAL OF CLINICAL AND DIAGNOSTIC RESEARCH. doi:10.7860/JCDR/2015/13021.6428. ISSN 2249-782X.


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