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  • Title: Computed tomography in the evaluation of the optic chiasm.
    Author: Kline LB, Vitek JJ, Acker JD.
    Journal: Surv Ophthalmol; 1983; 27(6):387-96. PubMed ID: 6879431.
    Abstract:
    Computed tomography (CT) is the procedure of choice for initial evaluation of patients suspected of having chiasmal or perichiasmal lesions. Over 1000 patients were examined with high resolution CT, using axial and coronal scans, contrast enhancement, multiplanar reformations, and, when indicated, metrizamide CT cisternography. The normal anatomic appearance of the chiasm and neighboring structures are: (1) symmetric or asymmetric enlargement of the chiasm; (2) areas of abnormal density, without or with contrast enhancement, in the chiasm or perichiasmal region; (3) alteration of the suprasellar cistern; and (4) distortion of the anterior-inferior third ventricle.
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