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Related Experiment Videos

Pineal cysts: MR imaging.

A C Mamourian, J Towfighi

    AJNR. American Journal of Neuroradiology
    |November 1, 1986
    PubMed
    Summary
    This summary is machine-generated.

    High-signal pineal glands on MRI are common (4.3%) and likely indicate benign pineal cysts. Radiologists should consider these cysts in differential diagnoses for bright pineal gland findings.

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    Area of Science:

    • Neuroradiology
    • Neuroimaging
    • Medical Diagnostics

    Background:

    • The pineal gland's appearance on magnetic resonance (MR) imaging can vary.
    • High signal intensity on T2-weighted MR images requires careful interpretation.

    Purpose of the Study:

    • To determine the incidence of high-signal pineal glands on T2-weighted MR images.
    • To identify potential causes for this imaging finding.

    Main Methods:

    • Prospective analysis of 672 consecutive MR brain scans.
    • Scans acquired on 0.15-T or 0.5-T MRI units.
    • Correlation with CT scans when available.

    Main Results:

    • A high-signal pineal gland was observed in 29 patients (4.3%).

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  • None of these patients had hydrocephalus or symptoms of a pineal mass.
  • CT scans in 17 cases did not reveal a solid pineal mass.

    • Conclusions:

    • Benign pineal cysts are the most probable cause of high signal intensity in the pineal gland on T2-weighted MR images.
    • Radiologists should include benign pineal cysts in the differential diagnosis for a bright pineal gland.
    • The finding is frequent and typically associated with benign pathology.