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Related Experiment Videos

Cavernous sinus invasion by pituitary adenomas.

J Ahmadi, C M North, H D Segall

    AJR. American Journal of Roentgenology
    |February 1, 1986
    PubMed
    Summary
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    Computed tomography (CT) effectively identifies pituitary adenoma invasion into the cavernous sinus, a common complication that hinders surgical removal. Early CT detection of this invasive behavior is crucial for patient management.

    Area of Science:

    • Neurosurgery
    • Neuroradiology
    • Endocrinology

    Background:

    • Pituitary adenomas are common intracranial tumors.
    • Cavernous sinus invasion by pituitary adenomas presents diagnostic and surgical challenges.
    • Accurate preoperative assessment of tumor extent is vital for surgical planning and prognosis.

    Purpose of the Study:

    • To evaluate the utility of high-resolution computed tomography (CT) in detecting cavernous sinus invasion by pituitary adenomas.
    • To correlate CT findings with surgical and histological data.
    • To assess the impact of cavernous sinus invasion on surgical outcomes.

    Main Methods:

    • Retrospective analysis of 198 surgically explored pituitary adenomas.
    • Preoperative evaluation using high-resolution computed tomography (CT).

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  • Surgical findings and histological data were compared with CT results.

    • Main Results:

    • Nineteen of 198 pituitary adenomas showed evidence of cavernous sinus invasion at surgery.
    • CT accurately identified cavernous sinus expansion (17/19) and internal carotid artery encasement (14/19).
    • CT demonstrated intracavernous cranial nerve compression (14/19) and lateral wall invasion (7/19).

    Conclusions:

    • Any pituitary adenoma type can invade the cavernous sinus, irrespective of hormonal activity.
    • CT is a valuable tool for preoperative detection of cavernous sinus invasion, aiding surgical planning.
    • Cavernous sinus invasion complicates complete tumor resection and impacts prognosis.